;The adjustable steel pipe clamp screw assortment set for double wire steel pipe clamps. Made of high quality stainless steel, color zinc plated surface, improves corrosion resistance and anti-durability. Adjustable band range: Simply loosen or tighten the screw to adjust the band diameter range. Prevents hose from leaking with the hose clamp, ideal for industrial or domestic use, helps reduce pressure and protect the hose. Package includes 5pcs adjustable threaded hose clamps, size: 13mm-16mm, 16mm-19mm, 21mm-25mm, 25mm-29mm, 28mm-32mm.;;