Feature: 1. Excellent Alloy Steel: The spiral shaft of this beam clamp is made of alloy steel threaded to adjust the rail width, forged and heat treated. 2. 5 Bearing Pivots: This beam clamp has five load bearing pivot points, all of which are machine pressed to save energy, make the clamp easy to use, with a small height and low center of gravity. 3. Recess Design: This steel beam clamp has a groove in the middle of the lifting point, so that the lifting point bureau does not deflect the load. 4. Wide Application: This steel beam clamp are mainly used in factories and mines, highways, bridges, metallurgy, docks, warehouses, construction sites and other infrastructure construction projects for the installation of machinery, lifting goods, mechanical equipment. 5. Easy Installation: The installation of this rail clip is very simple, you just need to screw the screws corresponding to complete the installation. Specification: Item Type: Vertical Beam Clamp Materials: Alloy Steel Rated Lifting Weight: 3T Test load(kn/t): 45/4.5 Applicable Rail Width: Approx. 80-320mm / 3.15-12.59in. Package List: 1 x Vertical Beam Clamp