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HILLMAN 5/16 in. Zinc-Plated Steel USS Hex Nut

HILLMAN 5/16 in. Zinc-Plated Steel USS Hex Nut

Made in America

Support American manufacturers + independent hardware retailers in one purchase.

A full box of 100 Grade 5 zinc-plated hex nuts means you're never short a fastener mid-job.
Hillman MPN 160502 In Stock & Ready to Ship
Local Price Check i Local stores may price this as low as $9.99. Our online price is $10.99.
$10.99
Free shipping on orders over $75
Ships within 24 hours · most orders arrive in about 2 business days

About Product Overview

This box of 100 gives you a ready supply of 5/16-18 hex nuts for jobs that go through fasteners fast, from machine assembly to general repair work. Grade 5 steel with a zinc-plated finish means they hold up to real torque without corroding in typical shop or job site conditions. Coarse USS threading matches common bolts of this size, so you're not hunting for an odd match mid-project.

  • Size: 5/16-18 (USS coarse thread)
  • Grade: 5 steel
  • Finish: Zinc-plated for corrosion resistance
  • Packaging: Boxed, 100 pieces
  • Made in USA

The Details Specifications

Brand Hillman
UPC 008236071863
Case Pack Quantity 9 per case
Retail Unit Quantity 1
Dimensions (L × W × H) 3 × 3 × 2
Weight 1 lbs
Country of Origin USA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab
Price check

Go ahead. Check.

You're going to open the other tab. Everybody does. We'd rather say so than pretend otherwise — so open it. We'll wait.

When you're over there, check four things before you click buy.

01

Who's actually selling it

The brand name is on the listing. A different company is in the seller field. Those aren't the same thing, and the second one is who you're buying from.

02

Whether the warranty survives

Most manufacturers only honor a warranty when the unit came through an authorized dealer. We're authorized for Hillman. A third-party marketplace seller usually isn't.

03

Where the box came from

Gray-market stock, returns repackaged as new, and outright fakes move through marketplaces constantly. It all looks identical in the photo. It stops looking identical when it fails.

04

Who you call when it breaks

Ours is a phone number with a person behind it who has held this product. M–F, 6 AM – 5 PM Pacific. (866) 469-8556

We're not always the cheapest.

Sometimes you'll find it for less. Sometimes you'll find it for more. On a lot of brands the number is identical everywhere it's sold legitimately — the manufacturer sets a minimum advertised price and every authorized dealer holds it. When a price sits well under that, it's worth asking why before it's worth celebrating.

How pricing actually works
Authorized dealer · Hillman

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