VENITOR Beam Clamp with 50 Pcs 3/8"-16 Zinc-Plated Iron Safety C-Clamps with 13/16" Adjustable Jaw Opening for Welding/Carpenter/Building/Household Mount

["Rod Thread Diameter: 3/8\"(9.5mm) 16 threads per inch, Max Jaw Opening: 13/16\"(20mm). Max Load (Lb.): Top of Beam 500 and Bottom 250.","Premium Material: Premium malleable cast iron beam clamps with galvanized zinc-coated, anti-corrosion and durable.","Package: 50 Pcs Metal Beam Clamps.","Widely Application: Suitable for Structural Attachment to Top Or Bottom Of Metal Beams, Or Angle Iron, Purlins.","After-sale Guarantee: If you are unsatisfied with our C Clamp, do feel free to contact us, we will provide you with a satisfactory solution."]