DIN7500m Countersunk Head Thread rolling Forming Screw M3-M6

[email protected], [email protected], skype:linnaniu1, 86-13671843635 Thread Forming Screw Product Name Made in China DIN7500 Countersunk Head Thread Forming Screw M3-M6 Material Stainless Steel , Carbon Steel , Brass etc. Standard DIN , GB , ISO , JIS , BA , ANSI (Customized Design Also) Grade SUS201 , SUS304 , SUS316 , A2 , A4 , 4.8 , 6.8 , 8.8 , 10.9 , 12.9 Production Process Tempering,Harding,Spheroidizing,Stress Believing Lead Time 3-30 days according to detail