Bulk USS Flat Washers – Medium Carbon Thru-Hardened, Zinc CR+3, Made in USA – Monster Bolts Size:400 Qty - 3/4" ✔️ Plain finish for versatile

✔️ Plain finish for versatile application

Forged from hardened 410 stainless steel (martensitic

Introducing our premium 3/4"-16 L9 Hex Head Cap Screws

hydrogen-relief baked to IFI spec

leaves the concrete surface flat

Bulk USS Flat Washers – Medium Carbon Thru-Hardened, Zinc CR+3, Made in USA – Monster Bolts Size:400 Qty - 3/4" ✔️ Plain finish for versatileMonster Overview Fix your project right the first time with USS Flat Washers Medium Carbon Thru Hardened, Zinc CR+3 from Monster Bolts. These USA made USS pattern washers feature a larger outside diameter than SAE washers, making them ideal for construction, structural applications, machinery, fabrication, and repair work. Made from thru hardened medium carbon steel, these washers provide a durable bearing surface under bolt heads and nuts to help