Product parameters
Screw out diameter d:15mm≤d≤300mm
Screw length L:L≤10000mm
Nitriding hardness:HV≥900
After grinding 0.20mm, HRC ≥760 (38CrMoALA);
Nitrided brittleness:≤2 level
Surface finish Ra:Ra0.4µm
Straightness:0.015mm
Thickness of bimetallic layer:1.5-2.0mm
Hardness of bimetallic layer:HRC56-60
Thickness of chrome plating layer: 0.03-0.05mm
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