Weld Nut Tab Base with Projections Steel Plain Finish Thread Size 5/16-18 Thread Type UNC Thread Direction Right Hand Base Length 63/64 Base Width 5/8 Base Thickness 1/8 Pilot Height 0.085 Pilot Dia 23/64 Pilot Hole Size 3/8 Weld Projections 4 Projection Width 0.150 In Projection Height 0.030 In The Multiple Projections Weld Simultaneously Resulting In A Greater Weld Area Than The Other Tab Nuts And Maximizing Weld Strength. Package Quantity 50