Zhongyue SGS Inspected Railway Rail Fishtail Bolt For Joint Bar

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 ABS. We 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.

Specifications:

Standard:DIN, JIS, ISO, ANSI, ASME, BS, AS

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

​

Production Procedure

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

Surface Treatment

1. plain (oiled)

2. color paint

3. oxide Black (most choice)

4. galvanizing

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

Application

Railway, Mining, Bridge, Construction and so on