Architectural Bolt, Material Brass, Barrel Head Style Truss, Screw Head Style Flat, Thread Size #12-24, Barrel Length 1 9/16 in, Barrel Diameter 5/16 in, Barrel Thread Depth 3/4 in, Barrel Drive Type No Drive, Screw Drive Style Phillips, Finish Zinc Plated, Barrel Head Diameter 0.5 in, Barrel Head Height 1/8 in, Dimensional Standards AMPG 2000 SB.01, Grip Size 1 3/4 in, Includes 82 Degree Screw, Made in North America Yes, Pack Size Small