Bulk Heavy Hex Nuts – A563 Grade C, Plain Finish, Coarse Thread, Made in USA – Monster B Size:500 Qty - 1"-8 Head Style — slotted pan

Head Style — slotted pan head

Monster Bolts delivers superior fasteners with dependable U

chips exit through the flute—no backing nut

Sizes Available: #6-9

Bulk Heavy Hex Nuts – A563 Grade C, Plain Finish, Coarse Thread, Made in USA – Monster B Size:500 Qty - 1"-8 Head Style — slotted panMonster 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