Barrel Bolt, Finish Plain, Material 316 Stainless Steel, Barrel Head Style Truss, Barrel Drive Type Combination Slotted/Phillips, Thread Size 5/16 In.-18, Barrel Length 1/2 in, Barrel Diameter 3/8 in, Barrel Thread Depth 3/8 in, Barrel Head Diameter 11/16 in, Barrel Head Height 11/64 in, Grip Size 1/2 in, Includes -, Made in North America No, Material Quality Standards ASTM A276, Pack Size Small, Package Quantity 5