Machine Screw, Round, Slotted, 1/4"-20, 18-8 (304) Stainless Steel, Plain, 3 in Length, PK 25 Machine Screw Head Type / Round Head Type / Round Material / 18-8 (304) Stainless Steel Length / 3 in Drive Type / Slotted Finish / Plain Dia./Thread Size / 1/4"-20 Head Dia. / 0.472 to 0.443 in Head Height / 0.175 to 0.160 in Tensile Strength (PSI) / 60,000 psi Meets/Exceeds / ANSI/ASME B18.6.3 Package Quantity / 25 System of Measurement / Inch