Flat Washer USS Plain Finish – 1/2″

Flat Washer USS Plain Finish – 1/2″

USS Pattern Flat Washers – Plain Finish

General-purpose flat washers with a plain finish and USS standard dimensions for broader bearing surfaces.

These USS Pattern Flat Washers feature a plain finish and are ideal for distributing load and reducing surface wear under bolt or nut pressure. They meet standard USS specifications and are commonly used in automotive, structural, and industrial assemblies. Their wider outer diameter helps to prevent pull-through and enhance load distribution. A reliable choice for applications where zinc plating is not required.

Bolt Size No. Inner Dia. Outer Dia.
1/4 37-7504 5/16 47/64
5/16 37-7505 3/8 7/8
3/8 37-7506 7/16 1″
7/16 37-7507 1/2 1-1/4
1/2 37-7508 9/16 1-3/8
5/8 37-7510 11/16 1-3/4
3/4 37-7512 13/16 2″
7/8 37-7514 15/16 2-1/4
1″ 37-7516 1-1/16 2-1/2
Shipping & Stocking Made Simple

At GNS Industrial Supply, we don’t just deliver products—we deliver peace of mind. Unlike traditional suppliers who ship and leave the rest to you, we take a hands-on approach to your inventory management. Our team visits your location, audits your existing stock, identifies what you need, and handles the reordering process for you. We then deliver directly to your facility and restock your supply room according to your preferred system—ensuring your operation runs smoothly without overstock or downtime. It’s a smarter, more personalized way to manage industrial supplies—built for teams who don’t have time to run out of what matters.