What is the fixtures in Rails?

Jan 28, 2026

What is the fixtures in Rails?

 

Rail fixtures and fastenings are essential, heavy-duty components-including fish plates, bolts, spikes, chairs, and rail anchors-that connect rail ends and secure rails to sleepers. They ensure track stability, maintain precise gauge, and allow for expansion/contraction to prevent derailment.

 

rail fastening

 

GNEE RAIL offers fastening systems suitable for ballast track, slab track, and crane runway installations, fully compatible with international rail standards and project-specific rail profiles.

 

Types of Rail Fasteners

 

Rail fasteners are critical components in railway infrastructure that secure rails to sleepers, maintaining gauge and preventing horizontal/vertical movement. Key types include elastic rail clips (E-clip, SKL, Nabla, Deenik), rigid fasteners (dog/screw spikes, KPO clamps), rail anchors for anti-creep, and baseplates/pads that ensure load distribution and damping.

 

rail fasteners

 

Type / Component Description & Purpose
Rail Clips Flexible, elastic fasteners (e.g., E-clip, Pandrol clip) that provide clamping force.
Rail Anchors Applied to the base of the rail to prevent longitudinal movement (creep).
Rail Spikes Fasteners for securing rails, particularly on wooden sleepers (e.g., dog spikes, screw spikes).
Tie Plates / Baseplates Plates placed between the rail and sleeper to distribute load and provide a secure base.
Rail Insulators / Pads Used to isolate the rail electrically (for signaling) and reduce vibration, often used with concrete sleepers.

 

  • Fish Plates (Joint Bars): Connect the ends of two rails together to maintain continuity.

 

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.

 

  • Spikes (Dog, Screw, Round): Drive into wooden sleepers to hold the rail securely.

 

rail spike

 

the types of Ss Series Sleeper Screw Product Name Specification Material Surface Standard
1 Fishtail Bolt M8-M64 Q235,45#,55#,etc Zinc,Plain, Black Oil UIC,AREMA,JIS,GB or according to your requests.
2 Screw Spike Square Head Screw Spike M16-M22 *145-200
Hexagon Head Screw Spike
Other Types
3 Sleeper Screw Type Specification Weight/kg Surface Standard
Ss 1/130 M22*130 0.451 Zinc,Plain, Black Oil UIC,AREMA,JIS,GB or according to your requests.
Ss 1/150 M22*150 0.478
Ss 2/180 M22*180 0.595
Ss 5/150 M24*150 0.545
Ss 6/130 M26*130 0.658
Ss 6/150 M26*150 0.702
Ss 6/170 M26*170 0.385
Ss 7/180 M24*180 0.636
Ss 8/140 M24*140 0.528
Ss 8/150 M24*150 0.548
Ss 8/160 M24*160 0.568
Ss 23/160 M23*160 0.645
Ss 24/165 M24*165 0.59
Ss 25/165 M25*165 0.625

 

  • Bearing Plates: Distribute the heavy load from the rail to the sleeper to prevent sinking.

 

  • Rail Anchors/Anti-creepers: Prevent the longitudinal movement (creep) of rails due to traffic.

 

  • Chairs/Keys: Position and hold bullhead rails in place on sleepers.

 

  • Rubber Pads: Used between the rail and concrete sleeper to absorb vibration.

 

How to install rail fixtures?

 

Installing rail fasteners involves securing rails to sleepers by preparing the foundation, placing rail pads, positioning rail clips (like KPO or elastic clips) with insulators, and tightening bolts/screws to specific torques, often ensuring 2-3mm compression for rubber-nosed clips. Proper alignment and lubrication are critical to prevent track gauge issues.

 

  • Preparation: Clean the sleeper surfaces, rail seat, and ensure all components (fasteners, pads, insulators) are ready.

 

  • Lay Rails: Position the rails on the sleeper plates, ensuring proper gauge and spacing.

 

rail fasteners

 

  • Place Components: Install rail pads underneath the rail, and place insulator components on the side of the rail to prevent electric contact.

 

  • Install Fasteners/Clips: Position the clips (e.g., KPO clamps or elastic spring clips) against the rail bottom flange.

 

  • Fasten and Torque: Insert bolts or screws, adding washers and lubricant. Use a torque wrench to tighten to specified levels, ensuring spring washers are compressed (typically 2-3mm for rubber components).

 

  • Adjust: Check the rail gauge and height, adjusting with pads if necessary (up to ±10 mm for gauge).

 

GNEE RAIL offers different kinds of railway fasteners to meet client's requirements, such as Elastic Rail Clip and Clamp, Rail Screw Spike, Plastic Dowel, High Tensile Track Bolt with Nut, Rail Base(Tie) Plate, Rail Fish Plate, Railway Shoulder(Insert), Fish Bolt, Railroad Rubber and EVA Pad, etc. Samples and drawings provided by customer, we will manufacture qualified products accordingly. We also deal with Steel Rail, Sleeper, Auto Bolt and other customized parts.

 

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