Hillman 5/8 in. Zinc-Plated Steel USS Nylon Lock Nut, 25-Pack
SKU: 20370824665

Hillman 5/8 in. Zinc-Plated Steel USS Nylon Lock Nut, 25-Pack

Sale price$16.64 Regular price$18.49
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Description

Hillman 5/8 in. Zinc-Plated Steel USS Nylon Lock Nut, 25-Pack5 8 in. Zinc Plated Nylon Lock Nuts (25 Pack) These Hillman USS nylon lock nuts provide secure, vibration resistant fastening for heavy duty projects. Made of steel with a zinc plated finish, they offer corrosion protection and a reliable hold thanks to the compressible nylon insert. Key Features: Vibration Resistant Hold: Nylon insert locks the nut in place without a lock washer Corrosion Protection: Durable zinc plated steel construction for long

5/8 in. Zinc-Plated Nylon Lock Nuts (25-Pack)

These Hillman USS nylon lock nuts provide secure, vibration-resistant fastening for heavy-duty projects. Made of steel with a zinc-plated finish, they offer corrosion protection and a reliable hold thanks to the compressible nylon insert.


Key Features:

  • Vibration-Resistant Hold: Nylon insert locks the nut in place without a lock washer
  • Corrosion Protection: Durable zinc-plated steel construction for long-lasting performance
  • Coarse Thread Compatibility: 5/8-11 USS thread fits standard coarse-thread bolts
  • Project-Ready Pack: Convenient 25-piece boxed package
  • Versatile Use: Ideal for automotive, machinery, and structural applications

Specifications Table:

Specification Details
Brand Name Hillman
Callout Size 5/8 inch
Thread Size 5/8-11
Thread Type Coarse (USS)
Finish Zinc Plated
Material Steel with nylon insert
Unit of Measurement USS
Number in Package 25
Packaging Type Boxed
Package Height 2 in
Package Width 4.5 in
Package Length 3.5 in
Package Weight 2.1 lbs

Frequently Asked Questions (FAQ):

Q: What thread size do these nuts fit?
A: They fit 5/8-11 coarse (USS) thread bolts.


Q: Do I still need a lock washer?
A: No. The nylon insert provides locking action, eliminating the need for a lock washer.


Q: Are they suitable for outdoor use?
A: Yes. The zinc-plated finish helps resist corrosion, making them suitable for indoor and outdoor applications.


Q: How many nuts are included?
A: 25 pieces per retail package.


Q: What material are the nuts made from?
A: Steel nuts with a zinc-plated finish and nylon insert.


A Polished, Industrial Essential

These zinc-plated lock nuts add a subtle, gleaming precision to any build, marrying rugged steel with a chic metallic finish. The nylon insert is the quiet hero—streamlined, secure, and resilient against vibration. Style them with black oxide bolts for a striking contrast and a clean, architectural look. A small detail with big impact, they’re indispensable for refined, sturdy construction.


Secure your projects with dependable, corrosion-resistant locking—add this 25-pack of Hillman nylon lock nuts to your cart today.

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: 20370824665

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4.2 ★★★★★
Based on 188 reviews
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G
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Gavin
Natrona Heights, US
★★★★★ 1
Avoid this handle if you use it
Color: Black, Size: Driver side
Good Product if you don't use it, terrible product if you do use it. The plastic it's made of is too flimsy and gets worse with heat. Installed this product and it only lasted a month and a half before the metal reinforcement plate ripped off the entire plastic handle assembly.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 4, 2025
O
Verified Purchase
Online Customer
Battle Creek, US
★★★★★ 5
Perfect match
Color: Tan, Size: Driver side
Fit our truck perfectly, color matches, and it looks like new again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 31, 2026
W
Verified Purchase
William LiCalzi
New York, US
★★★★★ 4
Fitment is decent
Color: Tan, Size: Passenger side
Overall a nice replacement color matched but the fitment was a little loose even though tightened well, where the end comes toward the top of the pillar it is loose and doesn't fit flush
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 1, 2023
D
Verified Purchase
dan w
Bozeman, US
★★★★★ 5
thank you
Color: Tan, Size: Driver side
installed today fits like a glove
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 22, 2025
E
Verified Purchase
ERNEST SCOTT HENDERSON
Houston, US
★★★★★ 2
Handle broke and had to reorder.
Color: Tan, Size: Driver side
The quality is not strong enough. Will not t recommend to others.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 13, 2024

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