Binding Post Screw, Finish Plain, Material Stainless Steel, Screw Head Style Truss, Screw Drive Style Pin-In Six-Lobe, Thread Size 1/4 In.-20, Screw Minimum Thread Length 1/4 in, Barrel Head Style Truss, Barrel Drive Type Pin-In Six-Lobe, Barrel Length Not Applicable, Barrel Drive Size T27, Barrel Head Diameter 9/16 in, Material Grade/Class 18-8, Material Quality Standards ASTM A582, Pack Size Small