Shoulder Screw Standard Alloy Steel Plain Finish Head Style Knurled Thread Size 3/8-16 Drive Type Hex Socket Drive Size 1/4 Shoulder Dia 1/2 Shoulder Length 2 3/4 Thread Length 5/8 Head Dia 3/4 Head Height 5/16 Shoulder Length Tolerance +/- 0.005 Screw Head Dia 0.750 Min Tensile Strength (PSI) 160 000 Shear Strength (PSI) 96 000 Temp Range (F) 50 to 550 Class 3A Rockwell Hardness 36 to 43 Meets/Exceeds ANSI/ASME B18.3 Package Quantity 25