1). Standard: Customer specifications
2). Grade: 4.8,6.8,8.8, 10.9, 2,5, 8 and customer requirements
3). Material: Carbon steel, alloy steel
4). Size:M5-M16,1/4"-3/4"
5). Surface: Plain, Black, ZP, ZY. Etc.
6). Packaging: 25kgs per box Competitive Advantages
1). Top Quality control
2). Competitive Price
3). Various of Design
4). OEM Accepted
5). Customer's Design and Logo are Welcome