Socket Shoulder Screw Set Compatible Table Hole Size 5/8 in Compatible With Buildpro Welding Table Features 5/16 in Hex Wrench Can Hold and Position BuildPro Accessories and Other Components Standard Version Includes Nut Washer Maximum Jaw Opening 1 1/8 in Outside Diameter 0.9 in Overall Depth 0.9 in Overall Height 2 in Overall Width 0.9 in Product Type Connecting Bolt Thread Size 1/2 In.-13 Work Surface Pattern 5/8 in Hole