DeWALT Anchors & Fasteners 50344-PWR Powder Actuated Pins & Threaded Studs; Type: Threaded Stud ; Shank Length (Inch): 1-1/4 ; Shank Diameter (Decimal Inch): 1.2500 ; Head Diameter (Decimal Inch): 0.3000 ; Thread Size (Inch): 3/8-16 ; Material: Steel