1/4-20 x 1 1/2 Slotted Indent Hex Washer Thread Cutting Screw Type 23 Full Thread Black Oxide 08NCUP188 They are designed for use

They are designed for use in exterior applications and are ideal for fastening decking boards to joists

The nut has a hex collar that provides a positive grip for easy installation and removal

The unslotted hex washer head provides a secure grip

It is designed to be used with bolts that have a 7/8-inch diameter

1/4-20 x 1 1/2 Slotted Indent Hex Washer Thread Cutting Screw Type 23 Full Thread Black Oxide 08NCUP188 They are designed for useThe 1 4 20 x 1 1 2 Slotted Indent Hex Washer Thread Cutting Screw Type 23 Full Thread Black Oxide is a versatile fastener designed for various applications. It features a 1 4 inch diameter and a length of 1 1 2 inches. The slotted indent hex washer head provides a secure grip for tightening, while the thread cutting design allows the screw to create its own threads in metal or plastic materials. The full thread design ensures maximum holding power,