Carbon steel(1008/Q195/A307),Stainless steel(A2/A4/304/316),Brass,Copper and so on.
M:M5-M20;L:10-500;M:1/4-3/4,L:1-24.produce according to your samples.
zinc plated,hot dipped galvanized,stainless steel etc.
Used in construction and industry to fasten metal or other hard material.
Various packings are available,bulk,carton,strongly packed.