Power actuated fasteners are specifically fabricated to meet the exacting requirements of toughness and durability. 0.300 head diameter drive pins with washers are designed for use in concrete and structural steel applications. ITW Ramset powder actuated fasteners are specifically fabricated to meet the exacting requirements of toughness and durability. For use in Model No. RS22, 721, Autofast, D60, SA270, HD22, D45/D45A, Cobra, M70, Hilti, Remington tools, and ITW Model No. 00022, 40088, 08896, and 16941. Packaged in reusable plastic storage box.