Bulk Heavy Hex Nuts – A563 Grade C, Plain Finish, Coarse Thread, Made in USA – Monster B Size:500 Qty - 1"-8 making these screws ideal for

making these screws ideal for locking components

clean fastening and mild corrosion protection

Our DIN 985 thin locknuts are precision-engineered for performance

Head Style — slotted pan head

Bulk Heavy Hex Nuts – A563 Grade C, Plain Finish, Coarse Thread, Made in USA – Monster B Size:500 Qty - 1"-8 making these screws ideal forMonster Overview Fix your project right the first time with A563 Grade C Heavy Hex Nuts from Monster Bolts. These structural heavy hex nuts are Made in the USA and designed for use in construction, structural steel, machinery, OEM fabrication, and industrial installations. The heavy hex pattern provides a larger bearing surface and wrenching flat compared to standard finished hex nuts, delivering improved clamping force and durability in high load