... screw Product use: the bicycleMaterials:7075 AlWe specialize in manufacturing and processing various precision/non-standard parts ,turned ... ,fasteners,stamped (punched)parts,hardware accessories,etc, widely used in many fields, such as machine,automotive, marine , household ... past decade developing, we have enlarged into a group in some extent, owning 3subsidiaries Aluminum screw,m5 aluminum screw ...