| Place of Origin: | China (Mainland) |
|---|---|
| Brand Name: | JTSCREW |
| Model Number: |
Quick Details
Specifications
Specifications:
45/90 45/100 50/105 51/105 55/110 60/125 65/120 65/132 80/143 80/156 92/188
Screw according to different formulas and different products before choosing different compression ratio.
Technical specification
Hardness after hardening & tempering
HB280-320
Nitrided hardness
HV850-1000
Nitrided case depth
0.05-0.08mm
Nitrided brittleness
Less than Grade 2
Surface roughness
Ra 0.4
Screw straightness
0.015mm
Surface chromium-plating's hardness after nitriding
≥900HV
Chromium-plating depth
0.025-0.10mm
Alloy hardness
HRC50-65
Alloy depth
0.8-2.0mm