Product Description
1)Standard of screw: DIN95/96/97, DIN7995, DIN7997, BS1210, BS1210 Hardened
2)Size: M2-M8,ST2-ST8.
3)Material: 6A,8A,brass,stainless steel,aluminum and so one.
4)Surface of screw: plain, zinc,Cr+3,Yellow Zinc,Cr+6, oiled to prevent rust,passivate,etc.
5)Packing of screw: bulk, box packing
6)grade: 4.8 grade and 8.8 grade