Bulk USS Flat Washers – Medium Carbon Thru-Hardened, Zinc CR+3, Made in USA – Monster Bolts 440222 Precision Fit: Designed for installation

Precision Fit: Designed for installation with an M2 hex key

High-Strength 410 SS: Martensitic stainless out-hardens 18-8 for tougher threads

which also imparts the necessary hardness for self-drilling capabilities

80 DIN 933 / 931 Hex Cap Screws

Bulk USS Flat Washers – Medium Carbon Thru-Hardened, Zinc CR+3, Made in USA – Monster Bolts 440222 Precision Fit: Designed for installationMonster 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