Thumb Screw, Knurled Head Type, Thread Size 5/16-18, Length 1 3/4 In, Low Carbon Steel, Black Oxide Finish, Head Dia 3/4 In, Head Height 1/4 In, Class 2A, Rockwell Hardness B68-B71, Tensile Strength 57,000, Package Quantity 2 Features Finish: black oxide Item: Thumb Screw Length: 1-3/4" Material: Low carbon steel Thread Size: 5/16-18 Class: 2A Head Type: Knurled Tensile Strength: 57,000 Rockwell Hardness: B68 to B71 Head Dia.: 3/4" Head Height: 1/4" System of Measurement: Inch

Thumb Screw, Knurled Head Type, Thread Size 5/16-18, Length 1 3/4 In, Low Carbon Steel, Black Oxide Finish, Head Dia 3/4 In, Head Height 1/4 In, Class 2A, Rockwell Hardness B68-B71, Tensile Strength 57,000, Package Quantity 2 Features Finish: black oxide Item: Thumb Screw Length: 1-3/4" Material: Low carbon steel Thread Size: 5/16-18 Class: 2A Head Type: Knurled Tensile Strength: 57,000 Rockwell Hardness: B68 to B71 Head Dia.: 3/4" Head Height: 1/4&