Products Description
Segment bolts can be classified into 6 types: hexagonal head arc-shaped segment bolts, non-standard segment bolts, double-ended straight segment bolts, double-ended arc-shaped segment bolts, hexagonal flange face arc thread segment bolts, and hexagonal head arc thread segment bolts.
The metro bolt used to repair the cement structure of the subway is called a subway bolt. It is widely used in mining and subway engineering. There are two types of metro bolts: longitudinal straight bolts and circumferential arc bolts.
Technical Parameters Of Railway Segment Bolts
| Parameter Category | Detailed Description |
| Type | Double-ended straight type, double-ended arc type, hexago -head arc type, hexagon-head arc – thread type, hexagon-flange-face arc-thread type, non-standard customized bolts |
| Strength Grade | Grade 5.8, Grade 6.8, Grade 8.8 (Tensile strength range: 500MPa – 1200MPa) |
| Material | Q235 carbon steel (general – purpose), 45# steel (medium – high strength), 40Cr alloy steel (high strength and fatigue – resistant) |
| Surface Treatment | Hot – dip galvanizing (zinc layer ≥ 50μm), Dacromet (salt – spray resistance ≥ 1000h), powder zinc infiltration, multi – component composite zinc infiltration |
| Specification Range | Diameter: M16 – M36; Length: 50mm – 600mm (Circumferential bolts are usually 20% – 50% longer than longitudinal bolts) |
Railway Segment Bolt Surface treatment：
Gnee Factory - Railroad Track Bolts Photos
Packaging and delivery：
Hot Selling Railway Segment Bolts
Hexagon Head Arc Thread Segment Bolts
|
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 |
||
|
φ24×400 |
Dacromet coating, thickness of coating ≥8μm |
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|
φ32×500 |
ISO898 - 1:2009 standard, grade 10.9 |
40Cr |
Powder zinc - infiltrated, thickness of zinc layer ≥60μm |
About the Company
who choose us?
We have a strict traceability mechanism to ensure that product quality is controllable. Each batch of rail bolts has an independent number and production record, and can be traced from raw materials to finished products, effectively ensuring product consistency and accountability.
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professional team
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