Material: Carbon Steel, Stainless Steel, Copper Alloy, Aluminium Alloy, Titanium Alloy, Special Alloy, Nonmetal
Surface: Black, Zinc Plated, Yellow Zinc Plate, Hot Dip Galvanized And So On
Tailling End: Flat Point, Cone Point, Dog Point, Cup Point, Rounded End
Diameter: M1.4-M24
Length: 2mm-60mm