Even ordinary punching sticks need to be refined and refined
Bencmold Cold heading punching rod, made of high-quality high-speed steel substrate, processed through a complete set of processes including vacuum quenching, cryogenic treatment, and precision grinding. The product has uniform hardness, good red hardness, and combines wear resistance and impact resistance. It is not easy to break or fracture, and the dimensional tolerance is controllable. Widely used in cold heading forming of conventional fasteners such as bolts, screws, rivets, etc., suitable for multiple cold heading machines. Regular size stock available, supporting customized non-standard sizes, making it a cost-effective mold accessory for mass production of fasteners.
- vacuum heat treatment
- Cooling technology after heat treatment
- Japanese high-speed steel raw materials
- Fast delivery time, same day order, same day shipment
| Specification | Details |
|---|---|
| H9/H51 | hardness:60-62 |
| H55 | hardness:63-65 |
| M42/H59 | hardness:66-68 |
Thimbles, knock-out pins (KO pins) and ejector punches keep every cold header running. These small parts wear fastest in any die set, so we make them from NACHI raw materials with vacuum heat treatment for long, predictable service life.
- Knock-out pins / KO pins — precision ground ejector pins that push finished parts clear of the die without marking
- Piercing punches — carbide and HSS punches for through-hole and semi-tubular screw applications
- Header punch cases and thimbles — protective sleeves that guide and support the punch under full press load
- Stock programme — common sizes kept in stock so your reorder ships fast and downtime stays low
Tell us your header model and die list — we’ll keep your consumables ready.
For the punch itself, our brazed carbide heading punch combines a carbide face with a steel body for long runs in abrasive wire.