Weld Nut Tab Base with Offset Hole 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 0.080 Pilot Dia 23/64 Pilot Hole Size 3/8 Center of Pilot Hole to Outside Edge 0.281 To Be Used With Carbon Steel Materials To Reinforce An Area. Tab Design Allows Welder To Use Multiple Sizes Of Electrodes. Package Quantity 50