DIN 7991 stainless steel M4 M5 M6 allen key hex socket countersunk machine screw

DIN 7991 stainless steel M4 M5 M6 allen key hex socket countersunk machine screw

1.DIN 7991 stainless steel M4 M5 M6 allen key hex socket countersunk machine screw

2.Machine Screw Material Available

1）. Steel:C45(K1045), C46(K1046),C20

2）. Stainless Steel: SUS201, SUS303, SUS304, SUS410, SUS420

3). Iron: 1213, 12L14,1215,etc

4). Alloy steel: SCM435,10B21

5).brass

6).copper

7).aluminum

8).Nylon plastic

3.Machine Screw Surface treatment：Zinc plated, NI-platd, passivate, Chrome plated, Electro plating, Black, Plain, Dacro, Hot deep Galvanized or according to your requirement

4.Machine Screw Tolerance: 0.01-0.05mm

5.Machine Screw Packing :Plastic bag +carton box 

6.Machine Screw Lead time

Sample 3-7 days, Mass production 8-15 days or according to customer's requirement

7.Factory: OEM in Shenzhen