screw and barrel tattoo machine screws

1.Depth of Nitrated Layer: 0.4-0.6mm, 2.Depth of bimetallic treatment: 2.5-4mm, 3.Hardness of nitration: 900-1060HV - details see: https://www.machineto.com/screw-and-barrel-tattoo-machine-screws-10334981
Place of Origin:Zhejiang China (Mainland)Brand Name:WD  
screw and barrel tattoo machine screws
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Technical Index of Screw and Barrel
Raw material:1.38CrMoAlA 2. 42CrMo 3. SKD61
Hardness of quality adjustment:HB280°-290°
Straightness:0.015mm / m
Roughness of surface:Ra0.4μm
Depth of Nitrated Layer:0.4-0.6mm
Hardness of nitration:900-1060HV(HRC56°- 65°)
Fragility of nitration:Less than grade 2
Surface hardness of nitrated Cr coating layer:≥950HV (HRC55°-72°)
Thickness of Cr-coating layer:0.03-0.08mm
Hardness of bimetallic treatment:HRC55°-62°
Depth of bimetallic treatment:2.5-4mm
Use inPP, PE, PA, PC, ABS, AS ect.
screw and barrel tattoo machine screws
Packaging Detail:wooden case
Delivery Detail:within 30days

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