BS 95A Railway Joint Bar (Fishplate) | BS 47-1 Standard Rail Splice Bars
The BS 95A Railway Joint Bar, also known as a BS 95A rail fishplate or rail splice bar, is a mechanical rail joint component used to connect two adjacent BS 95A rail sections. Manufactured to meet the requirements of BS 47-1:1997, it provides mechanical continuity between rail ends and helps maintain rail alignment and load transfer across the joint.
GNEE RAILWAY RAILWAYL supplies hot-rolled and precision-machined BS 95A fishplates in standard 4-hole and 6-hole configurations, with matching rail fastening hardware available for installation. EN 10204 3.1 Mill Test Certificates (MTC) can be supplied for material traceability and quality verification.
| Standard | BS 47-1:1997 / BS 11 |
| Matched Rail Section | BS 95A (95 lb/yd / ~47.1 kg/m ) |
| Hole Configurations | 4-Hole (457.2 mm) / 6-Hole (685.8 mm) |
| Available Steel Grades | 55# / 50# / Q235B / ASTM A3 Grade 40 |
| Compatible Bolt Assembly | M24 × 120 mm / 130 mm (Grade 8.8 / 10.9) |
| Inspection & Certification | 100% Dimensional Check, UT/MPI, EN 10204 3.1 MTC, SGS/BV PSI |
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BS 95A Railway Joint Bar (Fishplate) – BS 47-1 Standard Rail Splice Bars
Technical Specifications & Dimensions (BS 47-1 Standard)
The BS 95A joint bar profile matches the head and base fishing slopes of BS 95A rails, providing proper bearing along the fishing surfaces without bearing against the rail web.
| Parameter | 4-Hole BS 95A Fishplate | 6-Hole BS 95A Fishplate |
| Standard | BS 47-1:1997 / BS 11 | BS 47-1:1997 / BS 11 |
| Overall Length | 457.2 mm (18.0 in) | 685.8 mm (27.0 in) |
| Bolt Hole Diameter | Φ 26.99 mm (1-1/16 in) | Φ 26.99 mm (1-1/16 in) |
| Hole Center Spacing | 114.3 mm – 114.3 mm – 114.3 mm (4-1/2" pitch) | 5 × 114.3 mm equal pitch (4-1/2" pitch) |
| Calculated Weight (Pair) | ~18.71 kg / pair (~9.35 kg/pc ) | ~28.05 kg / pair (~14.02 kg/pc ) |
| Matched Rail Profile | BS 95A (95 lb/yd / 47.1 kg/m ) | BS 95A (95 lb/yd / 47.1 kg/m ) |
| Recommended Track Bolt | M24 × 120 mm / 130 mm (Grade 8.8 / 10.9) | M24 × 120 mm / 130 mm (Grade 8.8 / 10.9) |
Engineering Dimensional Tolerances
- Length Tolerance: ±2.0 mm
- Hole Center Spacing Tolerance: ±0.5 mm
- Hole Diameter Tolerance: +0.8 mm / -0.0 mm
- Straightness Deviation: ≤ 1.0 mm per meter on horizontal and vertical axes
- Fishing Angle Chamfer: 45° deburred edges
Material Grade & Mechanical Performance
Joint bars are manufactured from hot-rolled carbon steel to withstand dynamic shear stresses and cyclic vertical deflections.
- Steel Grade Chemical Composition Limits (Heat Analysis, % by mass)
| Grade | Standard Reference | C (%) | Mn (%) | Si (%) | P Max (%) | S Max (%) |
| 55# High Carbon | GB/T 699 / BS 47-1 | 0.52 – 0.60 | 0.50 – 0.80 | 0.17 – 0.37 | 0.030 | 0.030 |
| 50# Medium Carbon | GB/T 699 / BS 47-1 | 0.47 – 0.55 | 0.50 – 0.80 | 0.17 – 0.37 | 0.035 | 0.035 |
| Q235B Mild Steel | GB/T 700 / EN S235JR | ≤ 0.20 | ≤ 1.40 | ≤ 0.35 | 0.030 | 0.030 |
- Mechanical Test Limits
| Steel Grade | Tensile Strength
RmRm (MPa) |
Yield Strength
ReRe (MPa) |
Elongation
AA (%) |
Cold Bend Test (180°) |
| 55# High-Carbon | ≥ 645 – 650 MPa | ≥ 380 MPa | ≥ 13% |
d=3ad=3a (No surface cracking) |
| 50# Medium-Carbon | ≥ 600 – 630 MPa | ≥ 355 MPa | ≥ 14% |
d=3ad=3a (No surface cracking) |
| Q235B Mild Steel | 370 – 500 MPa | ≥ 235 MPa | ≥ 26% |
d=1.5ad=1.5a (Passes ductile bend) |
GNEE RAILWAY RAILWAYL supplies BS 95A fishplates and matched fastening kits with controlled manufacturing, precision machining, and optional heat treatment. Quality is supported by ISO 9001:2015 certification, EN 10204 3.1 MTCs, and third-party inspection by SGS, BV, Intertek, or TÜV. We also offer customized fishplates, flexible packaging and MOQ options, competitive lead times, and FOB, CFR, CIF, and DDP shipping terms.
Frequently Asked Questions
- What is the difference between a 4-hole and 6-hole BS 95A fishplate?
A 4-hole fishplate is 457.2 mm (18 in) long, while a 6-hole fishplate is 685.8 mm (27 in) long. The 6-hole design provides greater load distribution and is typically used for higher-load or higher-stress track sections.
- Can BS 95A fishplates be used on BS 90A or BS 100A rails?
No. Standard BS 95A fishplates are designed specifically for BS 95A rail profiles. Connecting different rail sections requires a compromise fishplate matched to the geometry of both rails.
- What torque should be applied to BS 95A track bolts?
For M24 Grade 8.8 bolts, the recommended torque is 650–750 N·m. For Grade 10.9 bolts, it is 750–850 N·m. Always follow the applicable installation specification for final tightening requirements.
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