Drive pins with a 6 mm diameter head are designed for permanently fastening a fixture to concrete, some types of masonry, and A36 structural steel. The pins are manufactured with a 0.145" diameter shank in various lengths. Knurled shank designs are available to increase performance in steel base materials. A 12 mm metal washer is mounted over the point to retain the drive pin in the fastener guide of the tool providing guidance during the driving operation.
