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High Strength Galvanised Bolt And Nut / Rail Bolt With Black Anodize

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Address: No.199 Huanlou Road,Economic Development Zone,Kunshan City,Jiangsu

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Suzhou Zhongyue Railway Material Co.,Ltd.

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High Strength Galvanised Bolt And Nut / Rail Bolt With Black Anodize

Country/Region china
City & Province jiangsu

Product Details

ZhongYue railway China supplier high-strength galvanised bolt and nut



Grade:4.8/ 8.8/ 10.9/ 12.9

Dimensions:M8, M10, M12, M14, M16, M18, M20, M22, M24 and so on

Surface Treatment:Zinc-plated, Plain, Black Anodize, Dacroment


NameRailway bolt
Russian clamp bolt & inserted bolt
Or the type by customers’ drawings
Mechanical propertiesTensile strength: ≥400MpaTensile strength:≥500MpaTensile strength:≥800MpaTensile strength:≥1000Mpa
Yield strength:≥240MpaYield strength:≥300MpaYield strength:≥640MpaYield strength:≥900Mpa
Cold bending: 90 degree without crackCold bending: 90 degree without crackCold bending: 90 degree without crackCold bending: 90 degree without crack
Surfaceplain (oiled), Oxide black, Zinc, HDG, wax, bitumen, Dacromet, Sherardizing
Standard refersUIC864-2



Established in 2013, ZhongYue has become one of the largest manufacturer of Railway fasteners in China. Our products are manufactured according to international standards such as ASTM, DIN, BS, JIS, AS, NF, ISO,GOST and GB. They are inspected frequently by BV, SGS, and ABSWe have been granted ISO9001:2008 certificate and supply products to famous companies such as VAE, Hilti,Vossloh etc. We are a qualified supplier of Canada railway, Kazakhstan railway, American railway, Zambia railway, Thailand railway, Indonesia railway, Malaysia railway, Sweden railway, New Zealand railway, South Africa railway etc.

Sticking to our quality first policy, ZhongYue pays great attention to quality control management. We have been granted ISO9001-2008 certificates and have received the production license of China's Railway Ministry on railway products. We have a full set of inspection instruments to ensure all our railway bolt products are of high quality and up to customers' requirements.




Railway, Mining, Bridge, Construction and so on



Production Procedure


Raw material —— Wiredrawing —— Cutting the wire rod to length —— forming the head —— cutting Edge —— Heat Treatment —— Surface treatment —— Final inspection —— Packaging —— Shipment


Production process 2.jpg


Surface Treatment

  1. plain (oiled)
  2. color paint
  3. oxide Black (most choice)
  4. galavazing
  5. DHG

Inspection machine

  1. Brinell Hardness Tester
  2. Carbon and Sulfur Analyzer
  3. Rockwell Hardness Machine
  4. Automatic Impact Testing Machine
  5. Metallographic Microscope
  6. Automatic High-speed Analyzer
  7. Fatigue Testing Machine
  8. Metallographic Specimen Polishing Machine
  9. Metallographic Specimen Pointing Machine



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