7/8" x 158mm Black Plated Square Bolts with Nuts & Washers for railway fastening

Other Name:

Rail Bolt, Square Bolt, Railway Bolt, Track Bolt,sleeper bolt,stud bolt,anchor bolt,clamp bolt,insert bolt

Standard:

DIN, JIS, ISO, ANSI, ASTM, BS, AS

Application:

Railway, Mining, Bridge, Boat, Construction and so on

Specifications:

Grade:4.8/ 8.8/ 10.9/ 12.9

Dimensions:M20, M22, M24 M25, M27, M28, M30, M32, M40, M50 and so on

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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.Zinc
5.HDG
6.bitumenizing
7.wax
8.phosphatiert

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

Our Company

Established in 2013, ZhongYue Railway has become one of the largest manufacturers 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.

Following to our quality first policy, ZhongYue pays a lot attention to quality control management. We have been granted ISO9001-2008 certificates and 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.

Founded in 2013, located at No.199 Huanlou Road, development zone Kunshan city, we Suzhou Zhongyue Railway Material Co., Ltd. Is a leading and reputed manufacturer of qualified railway fasteners in China.

We are certified by ISO 9001:2008. We have a complete set of inspection equipments to strictly control the quality of each production procedure and make sure all the products reach the international standards and customers’ requirements.

ZY team is composed of high professional senior engineers, professional technicians and a group of highly experienced operation workers, this is the strong guarantee of our products quality. We have our own R&D team, after-sales service team and quality-assurance team with the most advance technology and management concepts.

With advanced technology, comprehensive testing facilities, excellent management team and powerful processing capacity, our products have been exported worldwide. After many times of inspections by BV, SGS，ABS etc, our products have been well recognized by our customers. We are qualified supplier of Kazakhstan Railway, Thailand Railway, Zambia Railway, Indonesia Railway, Malaysia Railway, Sweden Railway, New Zealand Railway, American Railway, Canada Railway etc, supplying all kinds of railway material to them for many years without any quality complaint.

We not only can produce according to International standards, customers’ drawings and samples, but also can provide design proposal by our own high standard R&D department.

With the principles of quality first and customers first, ZY Rail enjoys bulk popularity and high reputation at home and abroad, while having many customers all over the world. With powerful strength and broad vision, ZY rail is moving towards internationalization of enterprises.