Depth of Nitration Layer: 0.5-0.8mm

Hardness of Nitration: 950-1020Hv

Fragility of Nitration: Less than grade 1

Surface Roughness: Ra 0.4 um

Streightness of Screw: 0.015mm

Surface Hardness of Nitrated Cr coating Layer: >=950Hv

The Thickness of Cr Coating Layer: HRC55-62

Hardness of Alloy Plating: 0.03-0.08mm

Depth of Alloys Layer: >2mm

Introduction:

We can all types of screws and barrels according to clients' requirement.