Shop the DEWALT CSI Spiral Drive Pins (8mm Head) - Collated, 1-1/4" (32mm) Knurled, Collated. CSI Spiral Drive Pins are designed for permanently fastening a fixture to concrete, concrete over steel deck, concrete masonry walls, and A36/A572/A992 structural steel. Manufactured with an 8mm head and a spiral knurled shank for consistent, optimized performance in steel base materials; available in single and collated strips. ICC-ES ESR-2024.
