Self drilling screw (self drilling screw)

Self drilling screw
1) Diameter: 2.9 - 6.3mm
2) Length: 20 - 180mm
3) Surface treatment: plated zinc&white, plated zinc&yellow
4) Material: C1022
5) Head: pan head, countersunk head, buggle head, hexagon
Packing:
According to customers' specifications
Best regards,
Mary Zhang