Zeluga 13-495 Powder Actuated Fasteners 2-1/2", Drive Pin with 1'' Washer .300'' Head .145'' Shank Diameter, 100 Per Box. Experience unmatched power with our 2-1/2 inch DRIVE PINS, designed for heavy-duty fastening tasks. Perfect for construction and industrial applications. Crafted with precision, these Fasteners feature a 1'' Washer and a .300'' Head, ensuring durability and reliability in every use. The .145'' Shank Diameter of the pins provides a strong grip. Blue flute retains drive pin in barrel of tool and provides accurate fastener placement, washer increases the impacted surface of fastened materials. Designed for fastening wood, steel, or other thin metal to concrete walls, cement blocks, poured concrete slabs, some types of masonry fast and easy. Each box contains 100 high-quality Power Actuated Drive Pins, offering excellent value and convenience for your projects