Products Description
Railway J Hook Bolt are an essential component of rail infrastructure, responsible for holding the rails and sleepers together to create a stable and safe track system. These bolts are typically used to fasten rails to the sleepers and keep them in place, providing stability and support for the rail line. Without proper installation and maintenance of track bolts, there can be severe consequences for the safety and efficiency of the railway system.
Railway J Hook Bolt Size Specifications
Gnee Factory - Railroad Track Bolts Photos
Installation process
Installation process (taking railway concrete sleepers as an example)
| Step | Operation Key Points |
|---|---|
| 1. Pre-embedded Positioning | Bolt hook facing upwards, embedding depth ≥ 25 times the diameter (e.g., M24 bolt embedding depth 600mm) |
| 2. Concrete Pouring | Fix with a positioning frame during one-time pouring, deviation ≤ 2mm; backfill with non-shrink fine aggregate concrete for the reserved hole method |
| 3. Bolt Tightening | Tighten in two stages: initial tightening (60% pre-tightening force) → final tightening (100%), torque error ≤ ±5% (calibrated wrench required) |
| 4. Anti-loosening Inspection | Re-tighten after 24 hours of operation, and inspect every 6 months thereafter |
Advantages of Gnee Railway Bolts
Advantages of Gnee Railway J Hook Bolt
Strictly control quality requirements
All processes are in accordance with the requirements of the ISO quality management system. From the quality control of suppliers to the finished products, we operate in accordance with standard procedures. We have a strict quality control system for suppliers.
Production Capacity
3 bolt production lines, 8 fully automatic rail clip forming production lines, 3 fully automatic spike production lines, 2 segment bolt production lines, 2 automatic casting production lines, 2 rolled iron pad production lines, etc.
Corrosion resistance of railway bolts
Gnee railway bolts have good anti-rust properties, can sing service life, reduce maintenance time and labor costs;
Packaging and delivery of products
We produce railway sleeper bolts, fish bolts, clip bolts, hook bolts, T-bolts, high-strength hexagonal head bolts, and non-standard parts of various special materials and special specifications. And provide customized services such as size and surface treatment at competitive prices.
About the Company
who choose us?
During the product manufacturing process, we actively promote environmentally friendly production processes and use recyclable packaging materials to reduce the impact on the environment. We believe that high-quality products are not only reflected in performance, but also in a sense of responsibility for the future.
one-stop solution
professional team
high quality
Our Certificate
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