Nylon Lock Nuts
These fasteners feature a nylon insert that prevents loosening due to vibration and impact. Whether you need stainless steel nylon lock nuts for corrosion resistance or flange nylon insert lock nuts for added stability, we’ve got it.
Grade 8 (USS) Nylon Insert Lock Nuts
Pairing with Grade 8 bolts (6 dots/double notched corners), these zinc-yellow nuts have a purple nylon collar to lock vibration up to 250°F. The 360° locking ring prevents thread galling and allows easy adjustments. Perfect for heavy-duty fastener assemblies.
| Diameter | Thread Size | Thread Type | Package Qty | Item # |
Price
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|---|---|---|---|---|---|
| 1/4" | 1/4"-20 | Coarse | 50 |
348404
|
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|
Package Weight: 0.5 lbs
|
|||||
| 5/16" | 5/16"-18 | Coarse | 50 |
348405
|
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|
Package Weight: 0.6 lbs
|
|||||
| 3/8" | 3/4"-16 | Coarse | 25 |
348406
|
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|
Package Weight: 0.4 lbs
|
|||||
| 7/16" | 7/16"-14 | Coarse | 25 |
348407
|
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|
Package Weight: 0.6 lbs
|
|||||
| 1/2" | 1/2"-13 | Coarse | 25 |
348408
|
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|
Package Weight: 1.1 lbs
|
|||||
| 9/16" | 9/16"-12 | Coarse | 25 |
348409
|
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|
Package Weight: 1.7 lbs
|
|||||
| 5/8" | 5/8"-11 | Coarse | 25 |
348410
|
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|
Package Weight: 2.2 lbs
|
|||||
| 3/4" | 3/4"-10 | Coarse | 10 |
348412
|
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|
Package Weight: 1.3 lbs
|
|||||
| 7/8" | 7/8"-9 | Coarse | 10 |
348414
|
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| 1" | 1"-8 | Coarse | 10 |
348416
|
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|
Package Weight: 2.7 lbs
|
|||||
| 1-1/8" | 1-1/8"-7 | Coarse | 10 |
348418
|
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|
Package Weight: 3.8 lbs
|
|||||
| 1-1/4" | 1-1/4"-7 | Coarse | 10 |
348420
|
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|
Package Weight: 5.7 lbs
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Grade 8 (SAE) Nylon Insert Lock Nuts
Built for Grade 8 applications (double notches or 6 dots), these nuts offer a purple nylon collar and are zinc-yellow plated to fight corrosion. They lock firmly at up to 250°F, ensuring a 360° hold. Ideal for high-strength, vibration-prone assemblies.
| Diameter | Thread Size | Thread Type | Package Qty | Item # |
Price
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|---|---|---|---|---|---|
| 1/4" | 1/4"-28 | Fine | 50 |
348504
|
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|
Package Weight: 0.4 lbs
|
|||||
| 5/16" | 5/16"-24 | Fine | 50 |
348505
|
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|
Package Weight: 0.6 lbs
|
|||||
| 3/8" | 3/8"-24 | Fine | 25 |
348506
|
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|
Package Weight: 0.5 lbs
|
|||||
| 7/16" | 7/16"-20 | Fine | 25 |
348507
|
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|
Package Weight: 0.5 lbs
|
|||||
| 1/2" | 1/2"-20 | Fine | 25 |
348508
|
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|
Package Weight: 1.1 lbs
|
|||||
| 9/16" | 9/16"-18 | Fine | 25 |
348509
|
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|
Package Weight: 1.6 lbs
|
|||||
| 5/8" | 5/8"-18 | Fine | 25 |
348510
|
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|
Package Weight: 2.1 lbs
|
|||||
| 3/4" | 3/4"-16 | Fine | 10 |
348512
|
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|
Package Weight: 1.2 lbs
|
|||||
| 7/8" | 7/8"-14 | Fine | 10 |
348514
|
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|
Package Weight: 1.9 lbs
|
|||||
| 1" | 1"-14 | Fine | 10 |
348516
|
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|
Package Weight: 2.7 lbs
|
|||||
| 1-1/8" | 1-1/8"-12 | Fine | 10 |
348518
|
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|
Package Weight: 3.7 lbs
|
|||||
| 1-1/4" | 1-1/4"-12 | Fine | 10 |
348520
|
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|
Package Weight: 5.5 lbs
|
|||||
Grade 5 (USS) Nylon Insert Lock Nuts
Ideal for Grade 5 assemblies, these lock nuts use a nylon collar to prevent vibration loosening up to 250°F. Their complete 360° locking circle protects threads from corrosion and galling. Perfect for general MRO use when you need firm, adjustable fastening strength.
| Diameter | Thread Size | Thread Type | Package Qty | Item # |
Price
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|---|---|---|---|---|---|
| 1/4" | 1/4"-20 | Coarse | 50 |
349404
|
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|
Package Weight: 0.4 lbs
|
|||||
| 5/16" | 5/16"-18 | Coarse | 50 |
349405
|
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|
Package Weight: 0.6 lbs
|
|||||
| 3/8" | 3/4"-16 | Coarse | 25 |
349406
|
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|
Package Weight: 0.5 lbs
|
|||||
| 7/16" | 7/16"-14 | Coarse | 25 |
349407
|
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|
Package Weight: 0.5 lbs
|
|||||
| 1/2" | 1/2"-13 | Coarse | 25 |
349408
|
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|
Package Weight: 1.1 lbs
|
|||||
| 9/16" | 9/16"-12 | Coarse | 25 |
349409
|
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|
Package Weight: 1.6 lbs
|
|||||
| 5/8" | 5/8"-11 | Coarse | 25 |
349410
|
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|
Package Weight: 2.2 lbs
|
|||||
| 3/4" | 3/4"-10 | Coarse | 10 |
349412
|
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|
Package Weight: 1.2 lbs
|
|||||
| 7/8" | 7/8"-9 | Coarse | 10 |
349414
|
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|
Package Weight: 1.9 lbs
|
|||||
| 1" | 1"-8 | Coarse | 10 |
349416
|
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|
Package Weight: 2.7 lbs
|
|||||
Grade 5 (SAE) Nylon Insert Lock Nuts
Zinc-plated and marked with Grade 5 ID, these nuts have a purple nylon collar to block vibration. The 360° locking ring protects threads from corrosion and works up to 250°F. Ideal for heavier general-purpose assemblies needing consistent holding power.
| Diameter | Thread Size | Thread Type | Package Qty | Item # |
Price
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|---|---|---|---|---|---|
| 1/4" | 1/4"-28 | Fine | 50 |
349704
|
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|
Package Weight: 0.4 lbs
|
|||||
| 5/16" | 5/16"-24 | Fine | 50 |
349705
|
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|
Package Weight: 0.6 lbs
|
|||||
| 3/8" | 3/8"-24 | Fine | 25 |
349706
|
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|
Package Weight: 0.5 lbs
|
|||||
| 7/16" | 7/16"-20 | Fine | 25 |
349707
|
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|
Package Weight: 0.5 lbs
|
|||||
| 1/2" | 1/2"-20 | Fine | 25 |
349708
|
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|
Package Weight: 1.1 lbs
|
|||||
| 5/8" | 5/8"-18 | Fine | 25 |
349710
|
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|
Package Weight: 2.1 lbs
|
|||||
| 3/4" | 3/4"-16 | Fine | 10 |
349712
|
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|
Package Weight: 1.2 lbs
|
|||||
| 7/8" | 7/8"-14 | Fine | 10 |
349714
|
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|
Package Weight: 1.8 lbs
|
|||||
| 1" | 1"-14 | Fine | 10 |
349716
|
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|
Package Weight: 2.4 lbs
|
|||||
Grade 2 Nylon Insert Lock Nuts - Coarse Thread (USS)
Zinc-plated and nylon-collared, these coarse-thread nuts protect threads as they grip. Ideal for moderate-strength bolts, especially Grade 5. They resist vibration, galling, and can handle everyday MRO tasks requiring easy, consistent locking power.
| Diameter | Thread Size | Thread Type | Package Qty | Item # |
Price
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|---|---|---|---|---|---|
| 1/4" | 1/4"-20 | Coarse | 50 |
345504
|
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|
Package Weight: 0.4 lbs
|
|||||
| 5/16" | 5/16"-18 | Coarse | 50 |
345505
|
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|
Package Weight: 0.6 lbs
|
|||||
| 3/8" | 3/4"-16 | Coarse | 50 |
345506
|
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|
Package Weight: 0.9 lbs
|
|||||
| 7/16" | 7/16"-14 | Coarse | 50 |
345507
|
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|
Package Weight: 1.1 lbs
|
|||||
| 1/2" | 1/2"-13 | Coarse | 25 |
345508
|
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|
Package Weight: 1.1 lbs
|
|||||
| 9/16" | 9/16"-12 | Coarse | 25 |
345509
|
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|
Package Weight: 1.6 lbs
|
|||||
| 5/8" | 5/8"-11 | Coarse | 25 |
345510
|
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|
Package Weight: 2.2 lbs
|
|||||
| 3/4" | 3/4"-10 | Coarse | 10 |
345512
|
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|
Package Weight: 1.3 lbs
|
|||||
| 7/8" | 7/8"-9 | Coarse | 10 |
345514
|
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|
Package Weight: 1.9 lbs
|
|||||
| 1" | 1"-8 | Coarse | 10 |
345516
|
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|
Package Weight: 2.6 lbs
|
|||||
| 1-1/8" | 1-1/8"-7 | Coarse | 2 |
345518
|
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|
Package Weight: 0.8 lbs
|
|||||
| 1-1/4" | 1-1/4"-7 | Coarse | 2 |
345520
|
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|
Package Weight: 1.2 lbs
|
|||||
Grade 2 Nylon Insert Lock Nuts - Fine Thread (SAE)
A zinc-plated, nylon-insert nut designed for secure, fine-thread assemblies. The nylon collar grips threads while protecting against galling. Ideal for moderate-strength applications, especially when combined with Grade 5 cap screws.
| Diameter | Thread Size | Thread Type | Package Qty | Item # |
Price
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|---|---|---|---|---|---|
| 1/4" | 1/4"-28 | Fine | 50 |
345604
|
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|
Package Weight: 0.4 lbs
|
|||||
| 5/16" | 5/16"-24 | Fine | 50 |
345605
|
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|
Package Weight: 0.6 lbs
|
|||||
| 3/8" | 3/8"-24 | Fine | 50 |
345606
|
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|
Package Weight: 0.9 lbs
|
|||||
| 7/16" | 7/16"-20 | Fine | 50 |
345607
|
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|
Package Weight: 1.1 lbs
|
|||||
| 1/2" | 1/2"-20 | Fine | 25 |
345608
|
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|
Package Weight: 1.1 lbs
|
|||||
| 9/16" | 9/16"-18 | Fine | 25 |
345609
|
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|
Package Weight: 1.6 lbs
|
|||||
| 5/8" | 5/8"-18 | Fine | 25 |
345610
|
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|
Package Weight: 2.1 lbs
|
|||||
| 3/4" | 3/4"-16 | Fine | 10 |
345612
|
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|
Package Weight: 1.2 lbs
|
|||||
| 7/8" | 7/8"-14 | Fine | 10 |
345614
|
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|
Package Weight: 1.9 lbs
|
|||||
| 1" | 1"-14 | Fine | 10 |
345616
|
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|
Package Weight: 2.6 lbs
|
|||||
| 1-1/8" | 1-1/8"-12 | Fine | 2 |
345618
|
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|
Package Weight: 0.7 lbs
|
|||||
| 1-1/4" | 1-1/4"-12 | Fine | 2 |
345620
|
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|
Package Weight: 1.1 lbs
|
|||||
Nylon Insert Jam Lock Nuts - Coarse Thread (USS)
Short-height jam nuts with a nylon collar for extra hold. Zinc plating resists corrosion, while the 360° locking ring stabilizes coarse-thread assemblies. Perfect for applications needing a lower-profile lock nut to avoid thread damage or galling.
| Diameter | Thread Size | Thread Type | Package Qty | Item # |
Price
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|---|---|---|---|---|---|
| 1/4" | 1/4"-20 | Coarse | 50 |
346004
|
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|
Package Weight: 0.3 lbs
|
|||||
| 5/16" | 5/16"-18 | Coarse | 50 |
346005
|
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|
Package Weight: 0.4 lbs
|
|||||
| 3/8" | 3/4"-16 | Coarse | 50 |
346006
|
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|
Package Weight: 0.5 lbs
|
|||||
| 7/16" | 7/16"-14 | Coarse | 25 |
346007
|
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|
Package Weight: 0.3 lbs
|
|||||
| 1/2" | 1/2"-13 | Coarse | 25 |
346008
|
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|
Package Weight: 0.6 lbs
|
|||||
| 9/16" | 9/16"-12 | Coarse | 25 |
346009
|
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|
Package Weight: 0.8 lbs
|
|||||
| 5/8" | 5/8"-11 | Coarse | 25 |
346010
|
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|
Package Weight: 1.1 lbs
|
|||||
| 3/4" | 3/4"-10 | Coarse | 10 |
346012
|
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|
Package Weight: 0.5 lbs
|
|||||
| 7/8" | 7/8"-9 | Coarse | 10 |
346014
|
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|
Package Weight: 0.8 lbs
|
|||||
| 1" | 1"-8 | Coarse | 10 |
346016
|
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|
Package Weight: 1.2 lbs
|
|||||
Nylon Insert Jam Lock Nuts - Fine Thread (SAE)
These jam lock nuts use a thin profile for tight spaces. The nylon insert gives a reliable 360° hold, while zinc plating resists corrosion. Perfect for fine-thread, lower-clearance assemblies needing secure, vibration-resistant fastening.
| Diameter | Thread Size | Thread Type | Package Qty | Item # |
Price
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|---|---|---|---|---|---|
| 1/4" | 1/4"-28 | Fine | 50 |
346104
|
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|
Package Weight: 0.4 lbs
|
|||||
| 5/16" | 5/16"-24 | Fine | 50 |
346105
|
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|
Package Weight: 0.7 lbs
|
|||||
| 3/8" | 3/8"-24 | Fine | 50 |
346106
|
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|
Package Weight: 0.5 lbs
|
|||||
| 7/16" | 7/16"-20 | Fine | 25 |
346107
|
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|
Package Weight: 0.6 lbs
|
|||||
| 1/2" | 1/2"-20 | Fine | 25 |
346108
|
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|
Package Weight: 0.6 lbs
|
|||||
| 9/16" | 9/16"-18 | Fine | 25 |
346109
|
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|
Package Weight: 0.8 lbs
|
|||||
| 5/8" | 5/8"-18 | Fine | 25 |
346110
|
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|
Package Weight: 0.9 lbs
|
|||||
| 3/4" | 3/4"-16 | Fine | 10 |
346112
|
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|
Package Weight: 0.6 lbs
|
|||||
| 7/8" | 7/8"-14 | Fine | 10 |
346114
|
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|
Package Weight: 0.7 lbs
|
|||||
| 1" | 1"-14 | Fine | 10 |
346116
|
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|
Package Weight: 1.2 lbs
|
|||||
| 1-1/2" | 1-1/2"-12 | Fine | 5 |
346124
|
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Wing Nuts Nylon Insert Lock Nuts
These wing-style lock nuts feature a nylon insert to secure fasteners under vibration. The 360° locking circle prevents loosening, while the Zamak body and purple nylon insert resist corrosion. Easily install by hand; ideal for quick adjustments.
| Diameter | Thread Size | Thread Type | Package Qty | Item # |
Price
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|---|---|---|---|---|---|
| 1/4" | 1/4"-20 | Coarse | 25 |
346254
|
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|
Package Weight: 0.3 lbs
|
|||||
| 5/16" | 5/16"-18 | Coarse | 25 |
346255
|
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|
Package Weight: 0.6 lbs
|
|||||
| 3/8" | 3/4"-16 | Coarse | 25 |
346256
|
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|
Package Weight: 0.6 lbs
|
|||||
Class-10 (Coarse Thread) Nylon Insert Lock Nuts
Durable Class 10 nuts for coarse-thread bolts up to 250°F. The nylon insert absorbs vibration, while zinc plating combats corrosion. Purple collar indicates standard pitch. Ideal for heavy-duty mechanical or industrial setups needing secure, adjustable locking.
| Diameter | Thread Size | Thread Type | Package Qty | Item # |
Price
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|---|---|---|---|---|---|
| M6 | M6 x 1 | Coarse | 50 |
465806
|
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| M8 | M8 x 1.25 | Coarse | 50 |
465808
|
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| M10 | M10 x 1.5 | Coarse | 25 |
465810
|
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| M12 | M12 x 1.75 | Coarse | 25 |
465812
|
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| M14 | M14 x 2.0 | Coarse | 10 |
465814
|
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| M16 | M16 x 2.0 | Coarse | 10 |
465816
|
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| M18 | M18 x 2.5 | Coarse | 10 |
465818
|
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| M20 | M20 x 2.5 | Coarse | 5 |
465820
|
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| M22 | M22 x 2.5 | Coarse | 5 |
465822
|
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| M24 | M24 x 3.0 | Coarse | 5 |
465824
|
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Class-10 (Fine Thread) Nylon Insert Lock Nuts
For fine-thread, high-strength applications up to 250°F, these Class 10 nuts feature a white nylon collar. They provide 360° locking to handle vibration and resist corrosion. Zinc plating helps prevent rust, ensuring easier removal and reusability.
| Diameter | Thread Size | Thread Type | Package Qty | Item # |
Price
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|---|---|---|---|---|---|
| M8 | M8 x 1 | Fine | 25 |
465908
|
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| M10 | M10 x 1.25 | Fine | 25 |
465910
|
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| M12 | M12 x 1.5 | Fine | 10 |
465912
|
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| M14 | M14 x 1.5 | Fine | 10 |
465914
|
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| M16 | M16 x 1.5 | Fine | 10 |
465916
|
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| M18 | M18 x 1.5 | Fine | 5 |
465918
|
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| M20 | M20 x 1.5 | Fine | 5 |
465920
|
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Class-10 (Very Fine Thread) Nylon Insert Lock Nuts
High-strength Class 10 nuts with a white nylon collar for very fine pitches. Provides vibration-damping 360° locking at temperatures up to 250°F. Zinc plating adds corrosion protection, while the nylon ring allows easy removal without thread damage.
| Diameter | Thread Size | Thread Type | Package Qty | Item # |
Price
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|---|---|---|---|---|---|
| M10 | M10 x 1.0 | Very Fine | 25 |
466010
|
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| M12 | M12 x 1.25 | Very Fine | 10 |
466012
|
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Metric Class 10 Nylon Insert Flange Lock Nuts
A built-in washer flange plus nylon insert prevents thread galling and resists vibration up to 250°F. The zinc-plated finish offers corrosion resistance, while the 360° lock design suits metric coarse threads. Ideal for quick, secure assemblies.
| Diameter | Thread Size | Thread Type | Package Qty | Item # |
Price
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|---|---|---|---|---|---|
| M6 | M6 x 1 | Coarse | 25 |
4616006
|
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|
Package Weight: 0.2 lbs
|
|||||
| M8 | M8 x 1.25 | Coarse | 25 |
4616008
|
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|
Package Weight: 0.4 lbs
|
|||||
| M10 | M10 x 1.5 | Coarse | 10 |
4616010
|
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|
Package Weight: 0.3 lbs
|
|||||
| M12 | M12 x 1.75 | Coarse | 10 |
4616012
|
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|
Package Weight: 0.5 lbs
|
|||||
| M14 | M14 x 2.0 | Coarse | 10 |
4616014
|
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|
Package Weight: 0.8 lbs
|
|||||
| M16 | M16 x 2.0 | Coarse | 5 |
4616016
|
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|
Package Weight: 0.6 lbs
|
|||||
| M20 | M20 x 2.5 | Coarse | 5 |
4616020
|
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|
Package Weight: 1.1 lbs
|
|||||
Class-8 (Coarse Thread) Nylon Insert Lock Nuts
Tough Class 8 nut with a purple nylon collar, delivering full 360° locking up to 250°F. Zinc plating guards against corrosion, and the nylon element prevents thread stripping. Ideal for coarser threads prone to high vibration.
| Diameter | Thread Size | Thread Type | Package Qty | Item # |
Price
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|---|---|---|---|---|---|
| M4 | M4 x 0.7 | Coarse | 50 |
465504
|
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| M5 | M5 x 0.8 | Coarse | 50 |
465505
|
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| M6 | M6 x 1 | Coarse | 50 |
465506
|
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| M8 | M8 x 1.25 | Coarse | 50 |
465508
|
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| M10 | M10 x 1.5 | Coarse | 25 |
465510
|
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| M12 | M12 x 1.75 | Coarse | 25 |
465512
|
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| M14 | M14 x 2.0 | Coarse | 10 |
465514
|
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| M16 | M16 x 2.0 | Coarse | 10 |
465516
|
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| M18 | M18 x 2.5 | Coarse | 10 |
465518
|
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| M20 | M20 x 2.5 | Coarse | 5 |
465520
|
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| M24 | M24 x 3.0 | Coarse | 5 |
465524
|
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Class-8 (Fine Thread) Nylon Insert Lock Nuts
These silver zinc-plated nuts lock securely with a nylon collar, preventing galling or stripped threads. Fine-thread design is ideal for precise assemblies under vibration. Rated to 250°F, they handle everything from automotive to industrial MRO tasks.
| Diameter | Thread Size | Thread Type | Package Qty | Item # |
Price
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|---|---|---|---|---|---|
| M10 | M10 x 1.25 | Fine | 25 |
465610
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| M12 | M12 x 1.5 | Fine | 10 |
465612
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Class-8 (Very Fine Thread) Nylon Insert Lock Nuts
Perfect for very fine threads, these Class 8 nuts have a nylon ring to reduce vibration and galling up to 250°F. Zinc plating prevents rust, while the 360° lock design allows precise adjustments. Great for delicate or high-tolerance assemblies.
| Diameter | Thread Size | Thread Type | Package Qty | Item # |
Price
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|---|---|---|---|---|---|
| M10 | M10 x 1.0 | Very Fine | 25 |
465710
|
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| M12 | M12 x 1.25 | Very Fine | 10 |
465712
|
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Metric Class 8 (Coarse Thread) Metric Nylon Lock Nuts
Designed for 8.8 cap screws, these metric coarse nuts feature a nylon collar for 360° locking. With a -65°F to 250°F rating, they stand up to vibration and resist galling. Zinc plating fights corrosion, making them ideal for automotive or industrial metric assemblies.
| Diameter | Thread Size | Thread Type | Package Qty | Item # |
Price
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|---|---|---|---|---|---|
| M4 | M4 x 0.7 | Coarse | 50 |
4614504
|
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| M5 | M5 x 0.8 | Coarse | 50 |
4614505
|
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| M6 | M6 x 1 | Coarse | 50 |
4614506
|
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| M8 | M8 x 1.25 | Coarse | 50 |
4614508
|
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| M10 | M10 x 1.5 | Coarse | 25 |
4614510
|
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| M12 | M12 x 1.75 | Coarse | 25 |
4614512
|
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| M14 | M14 x 2.0 | Coarse | 10 |
4614514
|
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| M16 | M16 x 2.0 | Coarse | 10 |
4614516
|
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| M20 | M20 x 2.5 | Coarse | 10 |
4614520
|
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Class-6 (Coarse Thread) Metric Nylon Lock Nuts
Ideal for M3 x .50 coarse-thread assemblies, these Class 8 nuts have a nylon insert for 360° locking. Zinc finish prevents corrosion, while the collar seals out moisture. They suit small mechanical or automotive tasks requiring stable, adjustable fastening up to 250°F.
| Diameter | Thread Size | Thread Type | Package Qty | Item # |
Price
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|---|---|---|---|---|---|
| M3 | M3 x 0.5 | Coarse | 50 |
4614503
|
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18-8 Stainless Steel Lock Nuts - Coarse Thread (USS)
Designed for 18-8 stainless screws, these coarse-thread lock nuts feature a nylon element to prevent galling and deliver 360° vibration resistance. Corrosion-resistant stainless construction suits harsh environments. Perfect for adjustable, secure fastening.
| Diameter | Thread Size | Thread Type | Package Qty | Item # |
Price
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|---|---|---|---|---|---|
| 1/4" | 1/4"-20 | Coarse | 50 |
332640
|
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|
Package Weight: 0.4 lbs
|
|||||
| 5/16" | 5/16"-18 | Coarse | 25 |
332650
|
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|
Package Weight: 0.3 lbs
|
|||||
| 3/8" | 3/4"-16 | Coarse | 25 |
332660
|
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|
Package Weight: 0.5 lbs
|
|||||
| 7/16" | 7/16"-14 | Coarse | 15 |
332670
|
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|
Package Weight: 0.4 lbs
|
|||||
| 1/2" | 1/2"-13 | Coarse | 15 |
332680
|
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|
Package Weight: 0.7 lbs
|
|||||
| 5/8" | 5/8"-11 | Coarse | 5 |
332700
|
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|
Package Weight: 0.5 lbs
|
|||||
| 3/4" | 3/4"-10 | Coarse | 5 |
332701
|
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|
Package Weight: 0.6 lbs
|
|||||
| 7/8" | 7/8"-9 | Coarse | 2 |
332703
|
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|
Package Weight: 0.4 lbs
|
|||||
| 1" | 1"-8 | Coarse | 2 |
332704
|
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|
Package Weight: 0.5 lbs
|
|||||
| No. 4 | #4-40 | Coarse | 50 |
332604
|
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|
Package Weight: 0.1 lbs
|
|||||
| No. 6 | #6-32 | Coarse | 50 |
332606
|
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|
Package Weight: 0.2 lbs
|
|||||
| No. 8 | #8-32 | Coarse | 50 |
332608
|
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|
Package Weight: 0.2 lbs
|
|||||
18-8 Stainless Steel Lock Nuts - Fine Thread (SAE)
Fine-thread stainless lock nuts featuring a nylon insert to reduce vibration loosening. The 360° locking circle handles tough conditions, while 18-8 stainless steel resists corrosion. Ideal for secure, fine-thread assemblies in harsh or wet environments.
| Diameter | Thread Size | Thread Type | Package Qty | Item # |
Price
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|---|---|---|---|---|---|
| 1/4" | 1/4"-28 | Fine | 50 |
332645
|
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|
Package Weight: 0.2 lbs
|
|||||
| 5/16" | 5/16"-24 | Fine | 25 |
332655
|
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|
Package Weight: 0.3 lbs
|
|||||
| 3/8" | 3/8"-24 | Fine | 25 |
332665
|
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|
Package Weight: 0.4 lbs
|
|||||
| 5/8" | 5/8"-18 | Fine | 5 |
332702
|
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|
Package Weight: 0.4 lbs
|
|||||
| No. 10 | #10-32 | Fine | 50 |
332611
|
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|
Package Weight: 0.3 lbs
|
|||||
18-8 Stainless Steel Nylon Insert Locknuts - Coarse Thread (USS)
For 18-8 stainless screws, these coarse-thread locknuts include a nylon collar for 360° anti-vibration locking. Highly corrosion-resistant and easy to adjust, they excel in marine or food processing environments needing robust, removable fasteners.
| Diameter | Thread Size | Thread Type | Package Qty | Item # |
Price
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|---|---|---|---|---|---|
| M3 | M3 x 0.5 | Coarse | 25 |
467180
|
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| M4 | M4 x 0.7 | Coarse | 25 |
467181
|
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| M5 | M5 x 0.8 | Coarse | 25 |
467182
|
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| M6 | M6 x 1 | Coarse | 25 |
467183
|
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| M8 | M8 x 1.25 | Coarse | 10 |
467184
|
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| M10 | M10 x 1.5 | Coarse | 10 |
467185
|
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| M12 | M12 x 1.75 | Coarse | 10 |
467186
|
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| M14 | M14 x 2.0 | Coarse | 5 |
467189
|
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| M16 | M16 x 2.0 | Coarse | 1 |
467187
|
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| M20 | M20 x 2.5 | Coarse | 1 |
467188
|
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18-8 Stainless Steel Waxed Anti-Galling Nuts - Coarse Thread (USS)
Wax-coated to reduce galling in stainless assemblies, these 18-8 lock nuts have a nylon insert for anti-vibration. Perfect with 18-8 cap screws, the wax eliminates the need for separate anti-seize. Great for consistent, removable fastening in stainless environments.
| Diameter | Thread Size | Thread Type | Package Qty | Item # |
Price
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|---|---|---|---|---|---|
| 1/4" | 1/4"-20 | Coarse | 50 |
3323640
|
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| 5/16" | 5/16"-18 | Coarse | 25 |
3323650
|
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| 3/8" | 3/4"-16 | Coarse | 25 |
3323660
|
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| 1/2" | 1/2"-13 | Coarse | 15 |
3323680
|
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| 5/8" | 5/8"-11 | Coarse | 5 |
3323700
|
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| 3/4" | 3/4"-10 | Coarse | 5 |
3323701
|
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| No. 10 | #10-24 | Coarse | 50 |
3323610
|
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18-8 Stainless Steel Anti-Galling Nuts - Coarse Thread (USS)
With a Kim-Kote dry film, these nuts fight galling in 18-8 stainless assemblies. They ensure easy disassembly without thread seizing, ideal for food-grade or corrosion-prone environments. The nylon insert delivers reliable, removable vibration resistance.
| Diameter | Thread Size | Thread Type | Package Qty | Item # |
Price
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|---|---|---|---|---|---|
| 5/16" | 5/16"-18 | Coarse | 25 |
3322650
|
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| 3/4" | 3/4"-10 | Coarse | 5 |
3322701
|
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| No. 12 | #12-24 | Coarse | 50 |
3322612
|
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18-8 Stainless Steel Anti-Galling Nuts - Fine Thread (SAE)
Fine-thread version with Kim-Kote film to stop galling on stainless studs or bolts. They permit easy, non-destructive disassembly and provide a vibration-proof hold. A non-toxic coating suits food-processing environments. Excellent for stainless assemblies requiring reliability.
| Diameter | Thread Size | Thread Type | Package Qty | Item # |
Price
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|---|---|---|---|---|---|
| 5/16" | 5/16"-24 | Fine | 25 |
3322655
|
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| 3/8" | 3/8"-24 | Fine | 25 |
3322665
|
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316 Stainless Steel Nylon Insert Lock Nuts
Made of 316 stainless to resist corrosion in harsh conditions, these nuts pair with 18-8 or 316 screws, preventing galling. A nylon collar locks out vibration, ensuring stable assemblies. Perfect for marine or chemical environments requiring easy removal.
| Diameter | Thread Size | Thread Type | Package Qty | Item # |
Price
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|---|---|---|---|---|---|
| 1/4" | 1/4"-20 | Coarse | 50 |
3310325
|
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| 1/4" | 1/4"-28 | Fine | 50 |
3310326
|
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| 5/16" | 5/16"-18 | Coarse | 25 |
3310331
|
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| 5/16" | 5/16"-24 | Fine | 25 |
3310332
|
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| 3/8" | 3/8"-24 | Fine | 25 |
3310338
|
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| 3/8" | 3/4"-16 | Coarse | 25 |
3310337
|
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| 7/16" | 7/16"-14 | Coarse | 25 |
3310342
|
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| 1/2" | 1/2"-13 | Coarse | 15 |
3310350
|
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| 1/2" | 1/2"-20 | Fine | 15 |
3310351
|
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| 5/8" | 5/8"-11 | Coarse | 5 |
3310362
|
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| 3/4" | 3/4"-10 | Coarse | 1 |
3310375
|
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|
Package Weight: 0.2 lbs
|
|||||
| No. 6 | #6-32 | Coarse | 50 |
3310306
|
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Metric 316 Stainless Steel Nylon Insert Lock Nuts
For harsh environments, 316 stainless resists corrosion better than 18-8. The nylon insert prevents galling and locks against vibration. Perfect for marine or food applications, it still pairs well with 18-8 or 316 screws, ensuring easy disassembly without galling.
| Diameter | Thread Size | Thread Type | Package Qty | Item # |
Price
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|---|---|---|---|---|---|
| M6 | M6 x 1 | Coarse | 50 |
4637183
|
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| M8 | M8 x 1.25 | Coarse | 25 |
4637184
|
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| M10 | M10 x 1.5 | Coarse | 25 |
4637185
|
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| M12 | M12 x 1.75 | Coarse | 10 |
4637186
|
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Featured Products:
- Nylon Insert Flange Lock Nut (USS): Features a nylon locking element that provides a full 360° locking circle around the threads to prevent loosening from vibration and impact. The nylon insert also helps absorb vibration and seal threads to protect against corrosion for easier removal. Plus, a temperature rating effective from -65°F to 250°
- Metric Nylon Lock Nut (Coarse Thread): Made for use with 8 hex head cap screws, this lock nut features a nylon insert that provides complete 360° locking around threads, preventing loosening from vibration or impact. The nylon collar protects threads from corrosion and avoids issues like galling or stripped threads.
- Stainless Steel Lock Nut (USS): Constructed from corrosion-resistant 18-8 stainless steel, this nut features a nylon insert for 360° locking around the threads. It allows for precise adjustments and prevents loosening under vibration, ensuring longevity and reliability.
How do nylon lock nuts prevent thread damage?
Nylon lock nuts use a nylon insert that grips the threads tightly, preventing loosening from vibrations. This helps to avoid galling or stripping of the threads during use.
What is the purpose of the nylon insert in nylon lock nuts?
The nylon insert provides a locking mechanism that secures the nut in place, preventing it from loosening over time. It also absorbs vibrations and protects the threads from corrosion.
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