1, standard:  non-standard

2, certification: ISO9001:2000

3: size: different size

Shank Diameter:  3mm-12mm

Length: 5mm-80mm

4, material: iron, aluminum, steel, carbon steel, alloy steel, stainless steel.

5, surface: zinc plate, nickle plate, parkeizing plate.

6, use: used in clutch cover, machine, hosehoud,

7, packing: 20kgs/ctn, 25 kgs/ctn, details packing according customer's requires,