To a specifical designer of fasteners,how to choose the finish way of fasteners is an important problem .A lot of ways can be selected.The designer .....
non standard double head screw We specialized in manufacturing hardware, such as standard and special self drilling screw, roofing screw, stamping nut...
Special double head bolts with half thread Our main special ,non standard fasteners include ,special screw with hexagon socket,six-lobe,Slotted head, ...