SKU: 57144763696

Hillman 3/8 in. Zinc-Plated Steel SAE Nylon Lock Nut, 100-Pack

Sale price$18.89 Regular price$20.99
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Description

Hillman 3/8 in. Zinc-Plated Steel SAE Nylon Lock Nut, 100-Pack3 8 in. SAE Nylon Lock Nuts, Zinc Plated Steel (100 Pack) Secure assemblies against vibration with Hillman SAE nylon lock nuts. Made of zinc plated steel with a nylon insert, they provide durable corrosion resistance and consistent hold for automotive and general hardware projects. Key Features: Secure Grip: Nylon insert locks onto threads to resist loosening from vibration Corrosion Resistant: Zinc plated steel construction withstands rust and wear

3/8 in. SAE Nylon Lock Nuts, Zinc-Plated Steel (100-Pack)

Secure assemblies against vibration with Hillman SAE nylon lock nuts. Made of zinc-plated steel with a nylon insert, they provide durable corrosion resistance and consistent hold for automotive and general hardware projects.


Key Features:

  • Secure Grip: Nylon insert locks onto threads to resist loosening from vibration
  • Corrosion Resistant: Zinc-plated steel construction withstands rust and wear
  • Fine Thread Precision: 3/8-24 SAE fine thread for tight, reliable fit
  • Bulk Value: 100-piece pack ideal for shops and repeat projects
  • Versatile Use: Suitable for automotive, machinery, and home repair applications

Specifications Table:

Specification Details
Brand Name Hillman
Callout Size 3/8 inch
Thread Size 3/8-24
Thread Type Fine
Unit of Measurement SAE
Finish Zinc Plated
Material Steel with nylon insert
Number in Package 100 pack
Packaging Type Boxed
Package Height 2 in
Package Width 3.5 in
Package Length 3.4 in
Package Weight 1.9 lbs

Frequently Asked Questions (FAQ):

Q: What thread size are these lock nuts?
A: They are 3/8-24 SAE fine thread.


Q: Do I need lock washers with these?
A: No. The nylon insert provides the locking action, eliminating the need for lock washers.


Q: Are they suitable for outdoor use?
A: Yes. The zinc-plated steel offers corrosion resistance for many indoor and outdoor applications.


Q: How are these packaged?
A: Boxed retail package containing 100 pieces.


Q: Can they be reused?
A: They can be threaded on and off, but repeated reuse can reduce the nylon insert’s locking effectiveness; replace if grip weakens.


Industrial polish with dependable hold

These zinc-plated lock nuts bring a clean, silvery finish to functional hardware, marrying utility with understated style. The faceted profile and nylon insert offer a tailored fit that feels precise and purposeful. Use them to streamline open-shelf frames or custom metal legs where hardware becomes part of the aesthetic. A small detail with big impact—essential for refined, long-lasting builds.


Choose Hillman’s 100-pack nylon lock nuts for a secure, corrosion-resistant hold that keeps every project tight and reliable.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 57144763696

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Verified Purchase
CHARLES H.
Cuba, US
★★★★★ 5
Direct Connection
Color: Black, Size: 25-Feet
Received the package in good condition. This wire is a decent quality. I made a set of jumper cables with it and they work excellent.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
C
Verified Purchase
Christopher Hauck
Bozeman, US
★★★★★ 5
bought twice to make custom UPS setup battery leads, not disappointed
Color: Black, Size: 25-Feet
bought this item(25ft 2awg) twice, the first time I did was to create some quick connect cables between my batteries and my distribution block to my 4kw invertor(24v 165a peak calculated load) I may have oversized due to knowing that the bigger you go the less you stress components and loose power to voltage drop these cables are a nice high-grade rubber jacket and the 30awg strands are ideal for maximum flexibility while remaining fairly easy to terminate this cable also includes a backer paper wrap that allows for easy stripping(of the rubber) without too much strand loss damage(from cutting too close to the core) overall, would buy again, like I did, if I need larger runs(say for feeding an RV solar AC distribution panel) I would buy this brand again, in the 100ft range or so THHN is not ideal for flex connections(strands are way too stiff) but a couple runs of welding cable like this inside something like "smurf tube" would be a perfect high-power temporary connection system, or just a way to isolate a large battery stack used for a solar setup in fact I may do that someday, set up a pallet of LiFePO4 batteries with a large quick connect, and just recharge the massive array(s) at a secondary location where solar is more ideal(or other renewables)
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 5, 2024
A
Verified Purchase
AM
West Palm Beach, US
★★★★★ 5
Custom wires for winch solenoid pack relocation.
Color: Black, Size: 25-Feet
Wire is nice. Flexible. Seems good. However the inner liner is not moisture blocking as I assumed from the pictures, it's paper.. still seems like a good price per foot.
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Reviewed in the United States on February 14, 2020
N
Verified Purchase
Nero
Fort Morgan, US
★★★★★ 4
Good, flexible (considering it's 2 GA) wire
Color: Black, Size: 20-Feet
Good, flexible (considering it's 2 GA) wire. Lugs soldered on well (using solder pot + flux). The only reason I didn't rate it 5 stars is because it's expensive. Made in USA was a +
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Reviewed in the United States on March 22, 2017
C
Verified Purchase
Church's
Bozeman, US
★★★★★ 5
Awesome cable
Color: Black, Size: 25-Feet
Worked great, used it for my corvette batter relocation to the trunk. Plus starter, and alternator wiring
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 22, 2026

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