M16 pipe clamp Size:suits for 32mm diameter pipe, mounting hole diameter:6mm, width:18mm, thickness:0.6mm. M20 pipe clamp Size:suits for 40mm diameter pipe, mounting hole diameter:6mm, width:18mm, thickness:0.6mm. High Quality-U shaped bracket is made of high quality 304 stainless steel and the surface is polished to greatly improve the corrosion resistance and discoloration resistance of stainless steel, and achieve better anti-rust effect. U Shaped Pipe Straps Easy to install: only need to be installed with screws, it is convenient and quick (the product does not contain screws) Pipe Strap Clamp Wide Range of Uses: widely used in water supply, fire protection, heating systems, gas, petrochemical, marine, automation systems, and other pipeline installation projects 100% AFTER-SALES SERVICE: If you are not satisfied with our saddle clips because of any problems, please contact us by email, we will do our best to solve them.