![ASTON wire for screw production sub_image](https://astonsweden.com/wp-content/uploads/2023/01/ASTON-wire-for-screw-production-sub_image.png)
Wire
Screws are made from steel or aluminum in wire coils. The wire is carefully chosen to match the design and application of the screw.
![ASTON screw heading machine head_image](https://astonsweden.com/wp-content/uploads/2023/01/ASTON-screw-heading-machine-head_image.jpg)
Heading: One-Die, Two-Punch
The wire is fed to the heading machine, which straightens and cuts the wire into a blank. The blank is then punched twice where the first punch partly shapes the head. The second punch shapes the final head shape including a potential recess.
![ASTON screw drill point machine sub_image](https://astonsweden.com/wp-content/uploads/2023/01/ASTON-screw-drill-point-machine-sub_image.png)
Pointing
The drill point is shaped by punching two dies closely together around the tip of the headed blank, deforming the tip of the blank into the desired drill point.
![ASTON screw threading machine sub_image](https://astonsweden.com/wp-content/uploads/2023/01/ASTON-screw-threading-machine-sub_image.png)
Threading: Flat-die Rolling
The threads on the screw are formed by rolling the screw between two flat-dies with the desired thread design, giving the screw its characteristic look.