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.

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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

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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

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Frequently Asked Questions (FAQ):

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

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

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

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

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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.

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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.

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