80/173  WPC Screws  6 sections 6 heads

product name: 80/173 WPC Screws 6 sections 6 heads

classification: WPC/SPC Floor Only Barrel Screws

Screw Cylinder Material:38CrMoAIA
Whole Cylinder Aloy Length:300mm
Screw Aloy Length:350mm
Screw Cylinder Alloy Depth:0.8-2.0mm
Hardness after Adjustment: HB260-290
Nitridation Depth:0.50-0.70
Surface Hardness after Adjustment: HV940-1050
Screw Straightness:0.015
Cylinder Straightness:0.05mm
Cylinder Concentricity: Above 90%
Cylinder Centrad:0.05mm
Make Tubing, Section Bar, PVC Prillng. Wood and Plastic Priling

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