Thumb Screw, Knurled With Shoulder Head, Steel, Thread Size 10-32, Length 5/16 In, Head Diameter 0.500 In, Head Height 0.219 In, Shoulder Dia 0.375 In, Screw Shoulder Length 0.094 In, Class 2A, Rockwell Hardness B68-B71, Tensile Strength 57,000 PSI, Finish Black Oxide Features Finish: black oxide Item: Thumb Screw Length: 5/16" Material: steel Thread Size: 10-32 Class: 2A Head Type: Knurled Tensile Strength: 57,000 Rockwell Hardness: B68 to B71 Shoulder Dia.: 3/8" Head Dia.: 1/2" Head Height: 7/32" Shoulder Length: 3/32" System of Measurement: Inch

Thumb Screw, Knurled With Shoulder Head, Steel, Thread Size 10-32, Length 5/16 In, Head Diameter 0.500 In, Head Height 0.219 In, Shoulder Dia 0.375 In, Screw Shoulder Length 0.094 In, Class 2A, Rockwell Hardness B68-B71, Tensile Strength 57,000 PSI, Finish Black Oxide Features Finish: black oxide Item: Thumb Screw Length: 5/16" Material: steel Thread Size: 10-32 Class: 2A Head Type: Knurled Tensile Strength: 57,000 Rockwell Hardness: B68 to B71 Shoulder Dia.: 3/8&