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Hillman

Hillman 5/16 in. Zinc-Plated Steel SAE Keps Lock Nut, 100-Pack

Hillman 5/16 in. Zinc-Plated Steel SAE Keps Lock Nut, 100-Pack

Regular price $39.35 USD
Regular price Sale price $39.35 USD
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Hillman 5/16 in. SAE Keps Lock Nuts (100-Pack)

These Hillman Keps lock nuts feature an attached free-spinning washer for faster assembly and reliable grip. Made of steel with a zinc-plated finish, they’re designed for general-purpose fastening where vibration resistance and easy installation are needed.


Key Features:

  • Keps Design: Integrated free-spinning washer speeds installation and helps resist loosening
  • Durable Steel: Strong SAE steel construction for dependable holding power
  • Zinc-Plated Finish: Corrosion-resistant coating for indoor general-purpose use
  • Coarse Thread: Compatible with standard coarse-thread 5/16 in. bolts/studs
  • Bulk Pack: 100-piece boxed pack for contractors and workshops

Specifications Table:

Specification Details
Brand Hillman
Product Type Keps Lock Nut
Callout Size 5/16 in
Unit of Measurement SAE
Material Steel
Finish Zinc-Plated
Thread Type Coarse
Number in Package 100 pack
Packaging Type Boxed
Assembled Product Weight 1.3 lb
Manufacturer Part Number 180286

Frequently Asked Questions (FAQ):

Q: What size bolt do these fit?
A: They fit 5/16 in. diameter coarse-thread SAE bolts/studs.


Q: Are these suitable for outdoor use?
A: They are zinc-plated steel, which offers basic corrosion resistance; for harsh outdoor or marine environments, consider stainless or hot-dip galvanized options.


Q: What is a Keps nut?
A: A Keps nut includes a captive, free-spinning washer that simplifies installation and helps prevent loosening from vibration.


Q: How are they packaged?
A: They come boxed in a 100-pack for convenient bulk use.


Q: Can they be reused?
A: They can be reused if undamaged, but replace any nut whose washer teeth are worn or deformed for best performance.


Industrial Grip with Streamlined Ease

There’s a quiet elegance in hardware that works as beautifully as it looks. The Keps nut’s serrated captive washer adds a subtle, functional edge—literally—bringing polished utility to cabinetry, shelving, or custom metalwork. Style it with brushed steel brackets and exposed fasteners for a crisp, atelier-inspired detail. Consider it the unsung essential that keeps luxe spaces flawlessly assembled.


Secure your projects with fast, reliable installation—add this 100-pack of Hillman Keps lock nuts to your cart today.

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