High-strength L9® SAE flatwashers engineered for critical-grade applications requiring superior clamp load and dimensional precision.
L9® SAE Flatwashers are manufactured for use with L9® fastener assemblies and are precision-engineered to deliver superior performance under high-torque applications. These zinc-plated washers feature a tighter inner diameter for enhanced clamping capability and are used in demanding structural, mechanical, and industrial settings. Designed to exceed SAE dimensional and performance standards, they are ideal for applications requiring maximum washer-to-fastener engagement and reduced risk of deformation. Made in the U.S.A.
| Bolt Size | No. | Inner Dia. | Outer Dia. | Thickness |
|---|---|---|---|---|
| 1/4 | 37-9004 | 9/32 | 5/8 | 1/16 |
| 5/16 | 37-9005 | 11/32 | 11/16 | 1/16 |
| 3/8 | 37-9006 | 13/32 | 13/16 | 3/32 |
| 7/16 | 37-9007 | 15/32 | 15/16 | 3/32 |
| 1/2 | 37-9008 | 17/32 | 1-1/16 | 3/32 |
| 9/16 | 37-9009 | 19/32 | 1-3/16 | 3/32 |
| 5/8 | 37-9010 | 21/32 | 1-5/16 | 11/64 |
| 3/4 | 37-9012 | 13/16 | 1-1/2 | 11/64 |
| 7/8 | 37-9014 | 15/16 | 1-3/4 | 11/64 |
| 1″ | 37-9016 | 1-1/16 | 2″ | 11/64 |
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.