Adopts high hardness tungsten carbide alloy, excellent wear resistance, high compressive strength, effectively resist impact & extrusion during mass bolt production, greatly extend service life.

Inner hole mirror finish, smooth inner cavity without burrs; strict dimensional tolerance control, ensures uniform wire forming, finished screws have smooth surface with no cracks.

Exclusive reinforced thick-wall structure, withstand heavy cold forging pressure, not easy to crack or deform under long-time continuous stamping, stable mass production performance.

Professional tempering treatment balances hardness and toughness, avoids brittle fracture under frequent impact, ideal for high-speed screw, bolt, rivet cold heading production.

Fit for carbon steel, stainless steel wire cold forming; widely used in fastener factories to produce bolts, screws, rivets, threaded studs and other standard fasteners.

We can customize inner hole size, outer diameter, height, inlet angle according to your drawings & samples; competitive factory price, strict quality inspection, fast delivery.