1)Material: C1022 carbon steel
2)Dia:3mm to 6mm 
3)Length:12mm to 220mm 
4)Surface:, while blue zinc or Yellow zinc plated

2) 5)Head: Flat/bugle head, pozi /phillips
6)Packing: 1000 pcs or 500 pcs per box or according to customer requirement and  can be packed in your brand name.