Table Clamp, Height 16-59/64 In., Width 2-9/16 In., Depth 16-59/64 In., Number of Surfaces 1, Work Surface Pattern Precision 5/8 In. Holes In 2 In. Grid Pattern, For Use With 28mm Matrix Welding Tables, Diameter 1-1/8 In., Thread Size 1-1/8, Load Capacity 5500 lb.