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HILLMAN 5/16 in. D Zinc-Plated Steel Split Lock Washer 100 pk

Made in America

Support American manufacturers + independent hardware retailers in one purchase.

Enhance your projects with HILLMAN 5/16 in. D Zinc-Plated Steel Split Lock Washer 100 pk, offering durability and corrosion resistance for secure fastening.
Hillman MPN 300021 In Stock & Ready to Ship
Local Price Check i Local stores may price this as low as $5.99. Our online price is $6.79.
$6.79
Includes free shipping on orders over $75 · $8.99 standard below
Delivery in as little as 1–4 business days Order within — for same-day shipping
Shop Local · Support Independent

Every order helps keep your local hardware store on the corner.

Why we built NHG
You might find it for less locally. Independent retailers often offer competitive pricing — some products are even cheaper in-store than online.
Real expert advice — not search results. Independent hardware staff know their inventory and the local conditions you're working in.
Keep the neighborhood working. Every dollar spent at an independent retailer returns roughly 3x more to your local economy than at a national chain.

About Product Overview

Enhance your projects with the HILLMAN 5/16 in. D Zinc-Plated Steel Split Lock Washer 100 pk. Designed for superior performance and durability, these lock washers are an essential component for securing fasteners in a wide range of applications.

Constructed from high-quality steel and finished with a robust zinc plating, the HILLMAN 5/16 in. D Zinc-Plated Steel Split Lock Washer 100 pk ensures excellent resistance to corrosion, making them ideal for both indoor and outdoor use.

  • Durable Material: Strong steel construction provides long-lasting reliability.
  • Corrosion Resistant: Zinc plating protects against rust and wear.
  • Versatile Use: Perfect for machinery, automotive, and home improvement projects.
  • Convenient Packaging: Comes in a box of 100, ensuring you have plenty for all your needs.

These split lock washers are designed to create a secure fit and prevent loosening due to vibration, making them an indispensable addition to your toolkit. Whether you're a DIY enthusiast or a professional contractor, the HILLMAN 5/16 in. D Zinc-Plated Steel Split Lock Washer 100 pk will provide the performance and reliability you need.

Don't compromise on quality. Order your pack of HILLMAN 5/16 in. D Zinc-Plated Steel Split Lock Washers today and experience the difference!

The Details Specifications

Brand Hillman
SKU 51916
UPC 008236090499
Unit 0
Case Pack Quantity 79 per case
Retail Unit Quantity 1
Unit of Measure 100 BX
Dimensions (L × W × H) 3 × 3 × 2
Weight 0 lbs
Cubic Feet 0.00798 ft³
Country of Origin USA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab

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$0.68 of every dollar spent at a local independent business stays in the community. At a national chain, it's about fifteen cents. Civic Economics, multi-city retail studies
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The stores we send you to are local and independently run — often for generations, the kind of place where someone behind the counter knows the regulars. We don't own them. We just think they deserve the foot traffic. They can put most of what we sell on their next truck. Ask there before you check out here.

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About our directory. National Hardware Group is an independent retailer and directory. The local stores we list and link to are separately owned and operated — we have no ownership stake in any of them, and most pay us nothing to be included. That includes plenty of stores flying a co-op banner that people don't realize are locally owned and run, not operated by a corporation. Store owners can choose to upgrade their listing for an enhanced presence or pickup features, but the base directory is free, and inclusion is never a paid endorsement.

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