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.

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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

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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

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Frequently Asked Questions (FAQ):

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

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

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

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

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

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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.

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