Threaded Adaptor Compatible Table Hole Size 5/8 in Compatible With Buildpro Welding Table Features (2) Threaded Holes with One Magnet Convert Any Hole into a Threaded Hole Includes (2) Magnets Overall Depth 3 in Overall Height 0.5 in Overall Length 4 in Overall Width 1.3 in Product Type Threaded Adapter Thread Size 1/2 In.-13 Work Surface Pattern (2) Magnet for Mounting (3) 1/2 in-13 Threaded Hole