Place of origin:
China
Supply Ability:
1000 pcs/month
One die two blow heading dies,
Main die, first punch, second punch.
Hexagon punch of heading dies, to form hex type of hexagon head screw or bolt.
Manufacturing steps to make self drilling screw with washer:
Finished wire – Heading – Self Drilling Screw Point Forming – Thread Rolling – Heat treatment – Surface treatment – Screw Washer Assembly – Packing
We supply full line equipment
[Related Keywords : heading dies, hex screw dies, second punch, main dies]