Large flat round head drill screw

1.Grade: 4.8, 8.8 etc.
2.Size: M1.6–M64, 1/4″–4″
3.Standard: DIN
4.Finish: Plain,zinc plain,black
5.Material:carbon steel,stainless steel
6.Packing: Standard export packing or According to customer’s requirement
7.Delivery time:  regular product is about 7-15 days, custom product will according to special requirement.