Can the bolt hole spacing of a compromise rail joint be customized?

Feb 03, 2026 Leave a message

A rail fish plate is a load-transfer device installed at rail joints to reduce stress concentration and rail-end deformation by redistributing forces over a longer effective length. GNEE RAIL produces fish plates for GB standards, UIC standards, DIN536 and QU crane rails, JIS rail profiles, AS1085 rails, BS11 sections, and AREMA/ASCE rails, and supplies complete joint assemblies for project delivery.

 

What does a fish plate do?

 

A fish plate (also known as a joint bar or splice bar) is a metal bar bolted to the ends of two rails in a railway track to connect them, maintaining horizontal and vertical alignment while allowing for proper spacing and load transfer. It keeps the track stable, prevents vertical deflection at joints, and ensures smooth, safe passage for trains.

 

Key Functions of a Fish Plate:

 

  • Joins Rails: Connects two rail ends to form a continuous track.

 

  • Maintains Alignment: Keeps rail ends in the correct horizontal and vertical position, preventing misalignment that could cause derailments.

 

rail joint

 

  • Distributes Load: Transfers the weight of trains from one rail to the next, reducing stress on the joint.

 

  • Allows for Expansion/Contraction: Enables the rail, typically with specific bolt hole spacing, to move slightly due to temperature changes.

 

Fish plates are essential components of railway engineering, often used on track joints, bridges, and in industrial settings. They are typically made of high-quality steel, though they can also be found in other applications like shipbuilding to reinforce structural joints.

 

Can the bolt hole spacing of a compromise rail joint be customized?

 

Yes, bolt hole spacing on a compromise rail joint can be fully customized to meet specific railway, engineering, and maintenance requirements.

Key customization details include:

 

 

  • Dimensions: Specifications for the distance from the end of the rail to the first hole, and the distance between subsequent holes (e.g., 6"x6"x7-1/8"x6"x6").

 

  • Rail Sizes: Customization for connecting different rail sections (e.g., 115RE to 132-136RE).

 

rail fish plate

 

  • Hole Configuration: Customization for 4-hole or 6-hole configurations, notes this page from a rail-fastener.com site.

 

  • Standards: Capability to match various, non-standard, or standard, such as AREMA, UIC, and BS.


To ensure the correct fit, providing exact drawings, including the elevation of the bolt holes on non-standard rails, is required.

 

GNEE RAIL provides a wide range of compromise joint bars

 

rail joint

 

No. Type Material Unit weight (kg/pc) Remark
1 136RE-115RE 55# 27.5 4pcs per set
2 136RE-132RE 55# 26.7 2pcs per set
3 141RE-136RE 55# 26.7 2pcs per set
4 141RE-132RE 55# 26.7 2pcs per set
5 100-8 of 1/8″ vertical off 55# 15.6 2pcs per set
6 100-8 of 3/8″ vertical off 55# 15.6 2pcs per set
7 UIC60-P50 55# 23 2pcs per set
8 BS80A-115RE 55# 20 2pcs per set
9 UIC60 thermit welded joint 55# 18 2pcs per set
Material and bar length can be customized upon buyer request.

 

Founded in 2008, GNEE RAIL is a leading global manufacturer and supplier of railway components, specializing in high-quality rail fish plates (joint bars/splice bars) with strong production capacity and global service capabilities.

 

Our rail fish plate portfolio is comprehensive and compliant with international standards including UIC, AREMA, BS, DIN, and GB, covering light rail (8kg-30kg), heavy rail (38kg-75kg), and crane rail (QU70-QU120) systems. We offer diverse types such as insulated joint bars, bulged fish plates, and compromise rail joints,with precise specifications (4-hole/6-hole, 24-inch/36-inch), ensuring excellent mechanical performance.We uphold strict quality control supported by ISO 9001:2015 certification, an in-house inspection center, and third-party audits by SGS and BV. Our one-stop service includes customization, production, packaging, and after-sales support, tailored to clients' project needs.

 

Click here to obtain the detailed product catalog of GNEE RAIL.