Premium-grade USS pattern flatwashers designed for structural applications using L9® bolts and assemblies.
L9® USS Flatwashers are engineered to provide a broader bearing surface with standard USS pattern outer diameters. These washers are zinc-plated and made in the USA for maximum strength, durability, and corrosion resistance. Used in conjunction with L9® bolts, they ensure proper torque distribution and minimize surface marring or deformation under load. Ideal for critical load-bearing assemblies in construction, machinery, and infrastructure applications.
| Bolt Size | No. | Inner Dia. | Outer Dia. | Thickness |
|---|---|---|---|---|
| 1/4 | 37-9054 | 9/32 | 3/4 | 1/16 |
| 5/16 | 37-9055 | 11/32 | 7/8 | 3/32 |
| 3/8 | 37-9056 | 13/32 | 1″ | 3/32 |
| 7/16 | 37-9057 | 15/32 | 1-1/4 | 7/64 |
| 1/2 | 37-9058 | 17/32 | 1-3/8 | 9/64 |
| 9/16 | 37-9059 | 19/32 | 1-1/2 | 9/64 |
| 5/8 | 37-9060 | 21/32 | 1-3/4 | 3/16 |
| 3/4 | 37-9062 | 25/32 | 2″ | 3/16 |
| 7/8 | 37-9064 | 15/16 | 2-1/4 | 3/16 |
| 1″ | 37-9066 | 1-1/16 | 2-1/2 | 3/16 |
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.