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

These Hillman nylon-insert stop nuts feature a zinc-plated steel body for strength with corrosion resistance, and a nylon insert that resists loosening from vibration. Ideal for general fastening where a secure, reusable lock is required.

Key Features:

• Secure Locking: Nylon insert grips threads to prevent loosening from vibration—no lock washer needed
• Durable Build: Zinc-plated steel resists rust and corrosion for long service life
• Standard Sizing: 3/8-16 coarse thread, USS pattern for broad compatibility
• Bulk Value: 100 pieces per pack for shop and jobsite convenience

Specifications Table:

Frequently Asked Questions (FAQ):

Q: What thread size are these nuts?
A: They are 3/8-16 coarse thread (USS).

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

Q: What materials are these made from?
A: The nuts are steel with a zinc-plated finish and a nylon insert.

Q: How many nuts are included?
A: 100 pieces per retail package.

Q: Where should I use them?
A: Use anywhere vibration could loosen standard nuts—automotive, machinery, and general construction.

Crisp, Industrial Restraint—That Stays Put

These zinc-kissed stop nuts bring a refined utility to any project, a subtle gleam that feels both deliberate and enduring. The nylon insert is the quiet hero—discreet yet unwavering—keeping your lines clean and your fixtures steady. Pair them with brushed hardware for a cohesive, tailored look across cabinetry or exposed shelving. Consider them the elegant anchor of a well-edited, luxe workspace.

Lock in lasting performance—choose this 100-pack of Hillman nylon-insert lock nuts for your next project.