1. Standard: DIN, ANSI, GB,BSW, GOST

2. Grade : 4.8,5.8,6.8,8.8,10.9,12.9

2. Material: ,carbon steel, titanium, copper, aluminium, iron and so on. 

3. Diameter: #6-#14, 1/8"-2 1/2" (2-64mm) 

4. Length: M2-M36 10-250mm 

5. ISO9001: 2008 & ISO14001: 2004 certification 

6. Finish: Plain , Zinc plated, Yellow zinc plated, H.D.G.

7.Packing: Bulk packing 25kgs/carton, 36 cartons/palelt; Or small box packing under the byuer's requirements