Barrel Bolt Finish Zinc Plated Material Steel Barrel Head Style Truss Barrel Drive Type Combination Slotted/Phillips Thread Size 1/4 In.-20 Barrel Length 1 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 1 in Made in North America No Pack Size Small Package Quantity 25