Bulk USS Flat Washers – Medium Carbon Thru-Hardened, Zinc CR+3, Made in USA – Monster Bolts Size:400 Qty - 3/4" leaves the concrete surface flat

leaves the concrete surface flat

these anchors expand to create a secure hold when used with the appropriate screw size

providing excellent retention and minimizing the risk of loosening in vibration-prone assemblies

making them ideal for demanding applications

Bulk USS Flat Washers – Medium Carbon Thru-Hardened, Zinc CR+3, Made in USA – Monster Bolts Size:400 Qty - 3/4" leaves the concrete surface flatMonster 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