Simpson #12 x 1-1/2" Self-Drilling Hex-Washer Head Screw, 305 Stainless Steel Joist Framing Connectors Replacement bits help compensate for

Replacement bits help compensate for variations in materials and driving techniques that can shorten driver-bit life

including structural steel and extra-hard concrete

Bolt / Rod Diameter: 1 in

and a length of 18 in

Simpson #12 x 1-1/2" Self-Drilling Hex-Washer Head Screw, 305 Stainless Steel Joist Framing Connectors Replacement bits help compensate forModel No. S12150HDU Coating Material. Type 305 Stainless Steel Screw size. #12 Drive Type. 5 16 in. Hex Length (in.) 1 1 2 Thread Type. Tapping Threads Head Type. Hex Washer Head TPI. 14 Point Type. Drill Point Use this Stainless Steel Self Drilling Hex Washer Head Screw for fastening aluminum and fiberglass (but not for steel). Applications Aluminum and fiberglass fastening (not steel) Key Features Indented hex washer head Tapping screw thread #3