Cold Heading Spline Punch, Black Coated Step Forming Punch Pin, M42 Material Mold Punch for Screw Making Machine, Custom Drawing Accepted
✅ High Grade Tool Steel Base
Optional M42, SKH55, SKH-9 material, high hardness HRC62-65, outstanding toughness and anti-cracking performance.
✅ Special Surface Coating Treatment
Black coating greatly reduces friction, improves wear resistance, prevents material adhesion and extends service life.
✅ Ultra Precision Machining
Precision grinding, tight tolerance, excellent concentricity, stable forming effect for mass production.
✅ Professional Spline / Flower Tooth Forming Design
Custom spline profiles for screw header machines, ideal for spline, flower shape bolt forming.
✅ Wide Application
Perfect for cold heading molds, screw header machines, bolt & fastener forming, rivet manufacturing.
✅ Customization Support
Custom diameter, length, step shape, spline structure based on customer drawings.
✅ Factory Direct Supply
Strict full inspection, stable quality, competitive price for bulk orders.
- Quality assured: strict inspection, stable export
- Non-standard custom: made to drawings, flexible
- Fast delivery: in stock, reliable lead time
- Professional service: 20+ years, full support
