Introduction
Choosing the right nut forming die directly affects your production output, part quality, and tooling cost. Whether you are running a 5-station, 6-station, 7-station cold heading machine, the die selection process follows the same core principles. This guide covers what to look for when sourcing nut cold heading molds for your production line.
1. Match the Die to Your Machine
Before selecting a nut forming die, confirm your machine specifications:
- Machine brand and model: [e.g., BOYU, YOUXIN, WUHE, DALIJIT, LIAN SHYANG , JERN YAO]
- Number of stations: [e.g., 5 die, 6 die, 7 die]
- Kick-Out Length:[Used to determine whether it is an extended machine.]
If you can provide the equipment nameplate, 99% of issues can be resolved.
2. Define the Nut Standard and Dimensions
Provide the following specifications when ordering a nut forming die:
- Thread size and pitch: [e.g., M6 × 1.0, M10 × 1.5]
- Nut standard: [e.g., DIN 934, DIN 6923, ISO 4032, ASME B18.2.2]
- Across-flats (AF) width: [e.g., 10mm, 17mm]
- Nut height: [e.g., 5.0mm, 8.4mm]
- Flange diameter (if applicable): [e.g., 14.2mm for DIN 6923 M8]
- Workpiece material: [e.g., carbon steel 1008/1010, SUS304, alloy steel 10B21]
If you want a non- standard part, please share the drawings and pictures of the parts.
3. Tell Us the Requirements of Wire
- Material: Low carbon steel or Stainless Steel
- Diameter: If you’ve ordered the wire rod, let us know the wire diameter.
4. Custom Nut Forming Dies
If you want to purchase only 1 pcs for your cold former, please provide the drawing of this mold, so we can produce according to the drawings.
Have questions about selecting the right nut forming die for your cold heading machine? Contact HengfaMold — our engineering team will recommend the optimal cold heading tooling solution for your application.
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