Gold Member Since 2008
Audited Supplier
Taicang Zhongbo Railway Fastening Co., Ltd.

Tunnel Bolt, Spear Tunnel Bolt, Curve Spear Tunnel Bolt manufacturer / supplier in China, offering Tunnel Bolt/ Spear Tunnel Bolt for Tunnel Construction, Rail Elastic Skl Clip in 60 Si2mna, Tie Plates for Railway Fastener System and so on.

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Supplier Homepage Product RAIL ACCESSORIES (BOLT AND SCREW) Bolt Tunnel Bolt/ Spear Tunnel Bolt for Tunnel Construction

Tunnel Bolt/ Spear Tunnel Bolt for Tunnel Construction

Purchase Qty.:
2,000-9,999 10,000+
FOB Unit Price: US $3.15 US $2.85
Purchase Qty. (Pieces) FOB Unit Price
2,000-9,999 US $3.15
10,000+ US $2.85
Get Latest Price
Port: Shanghai, China
Production Capacity: 400, 000PCS/Month
Payment Terms: L/C, T/T, D/P

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Basic Info
  • Model NO.: Tunnel bolt
  • Certification: UIC, AREMA, ASTM, BS, TB
  • Product Grade: 4.6, 4.8, 6.8, 8.8, 10.9
  • Product Standard: DIN, ANSI, Arema, GB, GOST...
  • Free Sample: Yes, According Clients Order
  • Payment: Tt/ L/C
  • Transport Package: Wooden Cases
  • Origin: China
  • Type: Track Train
  • Product Material: Carbon Steel, 35#, 45#, Q235
  • Usage: Railway Fastener
  • Surface Coating: HDG, Black, Plain Oiled
  • Delivery Time: Within 30 Days
  • Trademark: ZBRF
  • Specification: SGS
Product Description
high quality curve Spear tunnel Bolt for concrete ring

Application:Permanently fix concrete tunnel segment

Material: Carbon steel or stainless steel----Q235, 35#, 45#, 35CrMo, 42CrMo, 40Cr etc.

Specification:Complete range from M16 to M30 diameters without Length limit.

Finishing;plain(oiled),sherardized,hot dip galvanized, white zink plated, yellow zink plated, black, dacromet, geomet or others specified by the customers

high quality curve Spear tunnel Bolt for concrete ring

Tunnel Bolt/ Spear Tunnel Bolt for Tunnel Construction

TAICANG ZHONGBO RAILWAY FASTENING is a leading manufacturer and supplier of rail fastening in China. We are dedicated on supplying more better quality rail fastenings to the world railroad, and contributing to availability of more safety and convenient transit.
  ZHONGBO initially started from 2004, to 2011, it moved to current place, Shaxi Industry Park, Taicang, Jiangsu Province, east of China. The  site is about 23000 square meters. There are 320 staff in the site, of which, there are about 16 technical staff, and 112 junior and senior skilled workers; for testing and production facilities, there are more than 260 sets. Total assets is about 120 millions RMB, annual turnover about 180 millions RMB. The annual production capability is 36000 tons including rail fastenings, kinds of railway bolts, screw spikes.
  ZHONGBO is certificated with ISO 9001:2008 through SGS audit, and also certificated by China Railway Product Testing and Certification Center-CRCC. As well, our products are also approved by world class railroad company, such as UPRR, BNSF, SBB, SRT, PNR, MTR etc.
  There is also a professional R&D team in ZHONGBO. There are 3 senior national class engineers, 5 engineers and 8 assist engineers, they are working hard on R&D and improvement of rail fastenings for each field. We already awarded 18 patents on metro railway fastening system, tramway fastening systems, and performed widely. We are also the testing base of Southwest Transportation University regarding to rail fastening systems; we also cooperated with Shanghai Tongji University regarding the research and developing about vibrating reduction, wave friction reduction to rail tracks fields and award several leading results.

high quality curve Spear tunnel Bolt for concrete ring

 Our products are performing widely in more than 50 countries in the world, for exporting, there are mainly divided four areas as below:
America mainly in USA and, Canada, Mexico and Brazil:
  We supply E type rail fastening, W14 rail fastening systems, rail clips to metro, tramway fastenings, crane rail clips, track bolts and joint bar for rail connection, screw spikes, tie plates and concrete rings connection bolts for tunnels. They are mainly according to standards of AREMA, IFI, ASTM, UIC and other specifications from clients.
West Europe and Africa areas mainly in Spain, German, South Africa and Nigeria:
We supply W rail fastening systems, spring blade fastening systems, KP fastening system, metro rail fastenings,fish plates and fish plate bolts, sleeper screws, lock spikes, spear bolts for tunnels etc. They are manufactured to standard of UIC, NF ,DIN, BS and other specifications requested by clients.
East Europe and Mid-Asia area mainly in Russia, Kazakhstan, we supply: 
  W rail fastening systems, KP fastening system, rail joint bars and track bolts, track spikes and tie plates to this area. We manufacture and supply according to standard GOST, UIC, DIN and other specifications requested by clients.
Australia and Southeast Asia area mainly in Australia, Thailand, we supply:
 E type rail fastening, W rail fastening, heavy haul rail fastenings, metro rail fastenings,fishplate and bolts, track spikes, turnout accessories, concrete ring connection bolts etc. We manufacture and supply according to standard BS, AS, JIS, UIC and specifications requested by clients.
  Since 2008, we have launched in domestic market of China, we supplied high strength sleeper screw and anchor bolts for high speed railway of China. By following, we supplied to turnout fastenings to Vossloh Cogifer ,Chinese New Turnout Technologies, China Railway Track Equipment Nanjing. After efforts of 6 years, our rail fastenings, concrete connection bolts were widely used in Shanghai metro, Shenzhen Metro, Wuhan Metro, Nanjing Metro, Suzhou Metro, Shijiazhuang metro, Lanzhou Metro, Hefei metro and Guangzhou metro, and we were awarded good reputation.  In 2012, based on technical requirements of fastenings for domestic tramway, we combined our supply experience of tramway fastenings to abroad market, and cooperating with Southwest Transportation  University, China Railway ERYUAN Engineering, we successfully developed type WA-1 rail fastening system for tramway, and tested in Shanghai Tongji University, stated very good results, especially in anti-loosing design field, it is a leading level in China. In 2013, this type of rail fastening was used in Phrase I, and Phase II, project Nanming River, Guiyang city, and won good reputation from clients. In 2014, this type of rail fastening will be also used in Phase I, tramway of Zhuhai project. 
  ZHONGBO RAILWAY is concentrating on Researching and Developing of rail fastenings, we are looking forward to cooperating with more technical institutes about the R&D of rail fastenings. We also warmly welcome you to us for instruction, cooperation or any other business discussion. We hope we can develope by working together, and offer more and more safety, environmental transit to the world.
Zhongbo Railway Fastening Company is a leading Chinese manufacturer of rail fastening and rail joint bar.

Zhongbo, as a specialized rail fastener manufacturer, provides a complete line of products, including rail fastening, anchor, rail joint, rail clip, rail screw, anchor bolt, rail clamp plate, rail fishplate, and fishplate bolt for connecting rail tracks.

We also make rail fastenings for crane rail and elevator guide rail, along with other related products. We manufacture according to GB/TB (Chinese national standards and railway standards), AREA, UIC, BS, DIN, ASTM, and AS standards.

Our products are mainly made through hot forging.

The threads of rail screw spikes are made by hot rolling with special threading machines.

We produce metric threads, BS, BSW, TR thread, or round threads.
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