Binding Post Finish Plain Material 316 Stainless Steel Barrel Head Style Low Profile Barrel Drive Type Internal Hex Thread Size 1/4 In.-20 Barrel Length 1 in Barrel Diameter 3/8 in Barrel Thread Depth 3/8 in Barrel Drive Size 7/32 in Barrel Head Diameter 25/32 in Barrel Head Height 3/32 in Dimensional Standards AMPG 2000 SB.09 Made in North America Yes Material Quality Standards ASTM A276 Pack Size Small