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Benin JL128 series - Electroplating screw
Category:
BeninElectroplating screw series
Product Description
Technical index:
Tempered hardness: HV270-320
Medium frequency hardness: HV800-900
Chrome plating hardness: HV650-750
Chrome plating layer hardness: 0.025mm-0.085mm
Surface roughness: Ra0.4
Screw straightness: 0.015mm
Scope of application: white, transparent, engineering plastics
| Jiayue | China | Japan | USA | Germany |
| JL | QD | JIS | AISI | DIN |
| JL128 | 42CrMo | SCM440 | 5140 | 1.7035 |
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