Material: The adjustable screw beam holder is made of high-quality aluminum alloy with precision casting, which has high hardness, rust resistance, abrasion resistance and corrosion resistance, is very strong and not easy to break, and can be used for a long time. Adjustable: The C-clamp has a screw bar in the middle and a maximum opening of 5 cm, so the handle can be adjusted by rotating according to the thickness of the object to be clamped to clamp the object and make it fall, making it easier to use. Smooth Surface and Anti-slip Design: The small flat frame clamps are polished to a smooth surface and without burrs to ensure that they will not scratch your hands or objects during use. The bottom of the clip is equipped with a non-slip rubber pad to increase friction and effectively prevent falling. Thickened Design: The thickened clamping surface is stable and does not deform. The C-clamp has a stronger load-bearing capacity and is not easy to deform and break. It can quickly fix and secure the drawer without additional clamping tools. Wide Application: Ideal for woodworkers and metal engineers. Widely used in DIY, woodworking, metalworking, assembly, metal welding, machining, household tension projects, and automotive applications. It can also be used as a clamp for desks, trolleys, benches, workbenches, columns, headrests, etc.