DeWALT Anchors & Fasteners 50126-PWR Powder Actuated Pins & Threaded Studs; Type: Drive Pin w/ Washer ; Shank Length (Inch): 2-1/2 ; Shank Diameter (Decimal Inch): 2.5000 ; Head Diameter (Decimal Inch): 0.3000 ; Material: Steel ; Thread Length (Inch)