Barrel Bolt, Finish Plain, Material 18-8 Stainless Steel, Barrel Head Style Flat, Barrel Drive Type Slotted, Thread Size 5/16 In.-18, Barrel Length 1 in, Barrel Diameter 7/16 in, Barrel Thread Depth 5/8 in, Barrel Head Diameter 23/32 in, Barrel Head Height 3/16 in, Dimensional Standards AMPG 2000 SB.04, Grip Size 1 in, Includes -, Made in North America Yes, Material Quality Standards ASTM A582, Pack Size Small, Package Quantity 5