Description
100 pieces 1/4-20 x 3/4 Phillips Pan Head Machine Steel BLACK OXIDE These steel pan head screws are coated for corrosion resistance. Length is measured from under the head. Thread Size 1/4 "-20 Length 3/4 " Threading Fully Threaded Head Diameter 0.492" Head Height 0.175" Drive Style Phillips Drive Size No. 3 Material BLACK OXIDE Hardness Rockwell B70 Tensile Strength 60,000 psi Screw Size Decimal Equivalent 0.250" Thread Type UNC Thread Spacing Coarse Thread Fit Class 2A Thread Direction Right Hand Head Type Rounded Rounded Head Style Pan Rounded Head Profile Standard System of Measurement Inch Specifications Met ASME B18.6.3