Barrel Bolt, Finish Plain, Material 316 Stainless Steel, Barrel Head Style Truss, Barrel Drive Type Combination Slotted/Phillips, Thread Size 1/4 In.-20, Barrel Length 5/8 in, Barrel Diameter 5/16 in, Barrel Thread Depth 3/8 in, Barrel Head Diameter 9/16 in, Barrel Head Height 5/32 in, Grip Size 5/8 in, Includes -, Made in North America No, Material Quality Standards ASTM A276, Pack Size Small, Package Quantity 5