Brand:luda
Model:6*25*50
Xinxiang City Luda Machinery Co., Ltd. Specializes in developing and manufacturing railway standard components and high strength fastenings. Our company mainly engaged in developing and manufacturing clips and screws in railway, and other railroad fasteners. Has superior production equipment and complete test instrument. . Moreover we have been suppliers to the railway and high-speed rail for many years.
Type | Material | Model | Hardness | Standard | Finish code |
Flat washer |
Q235 35# |
M1.6-M64 | 100HV 200HV 300HV |
TB/T1495.4-92 | Plain, Zinc-plate Dacromet, etc. |
Spring washer | 60Si2Mn | M3-M48 | HRC42-50 | TB565-76 | Passivate, Zinc-plated etc. |
Lock washer | 60Si2Mn | M3-M48 | HRC41-46 | TB/T1495.4-92 | Antirust processing |
Zinc alloy flat washer | Q235 | 6*25*50 | Standard | TB/T1495.4-92 | Antirust processing |
Dacromet | Q235A | 6*25*50 | Standard | TB/T1495.4-92 | Antirust processing |
Flat washer
Spring washer




