Drive pins with a 0.300″ diameter head are designed for permanently fastening a fixture to concrete, concrete over steel deck, concrete masonry walls and A36 or A572 / A992 structural steel. The fasteners are manufactured with a 0.145″ diameter shank in various lengths. Knurled shank designs are available for installations in thick steel base materials. A plastic flute is mounted on the pin shank to retain the drive pin in the barrel of the tool and provide guidance during the driving operation.