thick nut & fish bolt &spring washer
Minimum Order: 0
Quality/Safety Certification: 0.00
1.Certificate:ISO9001:2008
2.Application:railway fastening system
3.Finishing:plain, black paint
4.Standard: GB
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.
thick nut & fish bolt &spring washer :
Type | Grade | Material | Model | Hardness | Standard | ||
Bolts | 8.8 | Q275 | M12-M30 | HRC24-31 | TB/T2347-93 | ||
10.9 | 20MnTiB | HRC33-39 | |||||
Nuts | 8H | 35# | M12-M30 | HRC22-HRB95 | TB/T2347-93 | ||
10H | Q275 | HRC28-HRB98 | |||||
Washer | 45# 35# | 6*25*50 | 100HV 200HV 300HV | TB/T1495.4-92 |