Ball Lock Bolt, Compatible Table Hole Size 5/8 in, Compatible With Welding Tabletop, Features 5/32 in Hex Wrench, Balls Retract for Insertion, Expand to Align and Lock In Position, Flush Mount, For Connecting 2 Accessories Together, Maximum Jaw Opening 1 in, Outside Diameter 0.6 in, Overall Depth 1.3 in, Overall Height 1.3 in, Overall Length 1.3 in, Overall Width 0.5 in, Product Type Ball Lock Bolt, Work Surface Pattern 5/8 in Hole, Material Steel