Products Description
Tunnel Bolts also called curved bolts or segment bolts, are used to permanently fix tunnel segments together with the numerous metal beams and posts through a radius hole, which make up the tunnel's frame. They can be applied to both radial and circumferential joints. Tunnel segment bolts are vital for maintaining the entire tunnel's structural integrity.
Railway Segment Bolt Size Specifications
Size: M16-M80
Strength Grade:8.8,10.9 and 12.9.
Thread Pitch:5H,6H,7H
Materials: Stainless steel, alloy steel
Coating: Galvanized, Nickel-plated, Chrome-plated, Black oxide, Dacromet
Standard: GB, DIN, ISO, ANSI, JIS, BS, Non-standard
Customized: as per customers requirements/drawings
Package:woven bag + pallet + packing belt + stretch film.
Railway Segment Bolt Surface treatment：
Gnee Factory - Railroad Track Bolts Photos
Hot Selling Railway Segment Bolts
Double-Ended Arc-Shaped Segment Bolts
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Size |
Grade |
Material |
Surface treatment |
|
φ22×410 |
ISO898 - 1:2009 standard, grade 8.8 |
45# |
Hot dip galvanized, thickness of zinc layer ≥43μm |
|
φ25×395 |
|||
|
φ28×556 |
Natural color |
||
|
φ24×430 |
Hot dip galvanized, thickness of zinc layer ≥43μm |
||
|
φ26×460 |
Multi - component composite powder zinc - infiltrated, thickness of zinc layer ≥50μm |
About the Company
who choose us?
The company supports customization according to drawings and samples, and provides a variety of rail bolt customization services, including size, material, surface treatment, thread type, etc., to meet the personalized usage scenarios of different customers.
one-stop solution
professional team
high quality
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