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Product features

1. Material: 38CrMoAlA

Nitriding treatment: Surface hardness: HV≥900

Nitriding depth: 0.5-0.8mm


2, material: special stainless steel,

Quenched, hard HRC55-58, suitable for all kinds of transparent and corrosive materials, improve the life of screw.


3, material: surface tungsten carbide ultra sound overall spray welding, improve the wear resistance of screw.



Screw head - Screw head

1. Material: 38CrMoAlA

Nitriding treatment: Surface hardness: HV≥900

Nitriding depth: 0.5-0.8mm


2, material: special stainless steel,

Quenched, hard HRC55-58, suitable for all kinds of transparent and corrosive materials, improve the life of screw.


3, material: surface tungsten carbide ultra sound overall spray welding, improve the wear resistance of screw.


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