DEWALT's 1-1/4 in. x .157 in. CSI Spiral Knurled Drive Pins support consistent installation results through uniform manufacturing tolerances and a design optimized for powder-actuated fastening. The spiral knurling helps reduce slippage during driving, improving accuracy and minimizing rework on repetitive installations. These drive pins are commonly used for attaching clips, track, strapping, and light-gauge components where dependable performance and jobsite efficiency are essential. The 100 pack quantity helps maintain productivity without frequent restocking.