Bulk F436 Structural Round Washers – HDG, Inch Sizes, Made in USA – Monster Bolts Size:900 Qty - 3/4" Duo-Drive Convenience: Install with a

Duo-Drive Convenience: Install with a 3/8″ hex socket/wrench or a flat-blade screwdriver via the slotted indent

Trusted by professionals across manufacturing

Head Style: Indented hex washer with slotted drive

250″ steel or tough hardwood

Manufactured from carbon steel and treated with a black zinc and bake coating

Bulk F436 Structural Round Washers – HDG, Inch Sizes, Made in USA – Monster Bolts Size:900 Qty - 3/4" Duo-Drive Convenience: Install with aMonster Overview Fix your project right the first time with F436 Structural Round Washers Hot Dip Galvanized (HDG) from Monster Bolts. Engineered and Made in the USA, these washers meet ASTM F436 structural grade requirements and are designed for the demanding load conditions found in structural steel, bridge construction, heavy equipment, and industrial connections. F436 structural round washers provide a larger bearing surface than standard flat