Breakaway Nuts Pinit $0.48 to $1.12 $0.96 Quantity discounts available QuantityPrice SKU: BAN. Screw Diameter : 10-24 1/4-20 5/16-18 3/8-16 Quantity -+ Purchase Details Hex nut breaks away when nut is tightened leaving only the tamper-resistant conical portion remaining. No special tool is required: Uses standard wren... Details Back DetailsHex nut breaks away when nut is tightened leaving only the tamper-resistant conical portion remaining. No special tool is required: Uses standard wrench for installation. Should be considered non-removable. Aluminum.