Weld Nut Material Steel Finish Black Oxide Thread Size 3/8 In.-16 Base Height 3/32 in Base Width 5/8 in Base Length 63/64 in Collar Height 0.03125 in Collar Diameter 0.15 in Number of Weld Projections 4 System of Measurement Inch Base Shape Tab For Hole Diameter 29/64 in Hole Location Center Pack Size Small Pack Package Quantity 50