CSI Spiral Drive Pins 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 an 8mm head and 0.157in diameter shank in various lengths; a 0.145in diameter tapered shank with 1/2in length is also available.
A spiral knurled shank design provides consistent optimized performance in steel base materials.
For single fasteners, a plastic washer is mounted on the pin shank to retain the drive pin in the barrel of the tool and provide centered guidance during the driving operation