Sleeper bolts
Sleeper bolts
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  • Sleeper bolts
  • Sleeper bolts

Sleeper Bolts: The Critical Fasteners Powering Railway Infrastructure

Sleeper Bolts (also called Rail Bolts or Tie Bolts) are high-strength, precision-engineered fasteners designed to securely connect rails, sleepers (ties), fishplates (joint bars), and other track components in railway systems. They ensure track stability, safety, and longevity under extreme operational stress.

Key Features & Benefits

Extreme Strength & Durability

Made from high-tensile alloy steel (Grade 8.8, 10.9, 12.9) or corrosion-resistant stainless steel (304/316).

Withstands dynamic loads (e.g., 30-ton axle loads), vibration, and impact without deformation or failure.

Vibration-Proof Security

Integrated anti-loosening technology (e.g., nylon-insert locknuts, serrated flanges, or pre-applied threadlocker) prevents bolt loosening under constant train-induced vibrations.

Corrosion Resistance

Hot-Dip Galvanized (HDG) or stainless steel coatings resist rust from rain, ballast abrasion, de-icing salts, and pollutants.

Lifespan: 20–30+ years in harsh environments, reducing maintenance frequency.

Compliance & Safety

Manufactured to global railway standards (e.g., AREMA Chapter 30, EN 15048, BS EN 14399).

Full traceability with material certifications for quality assurance.

Name
Xinda Track Sleeper Spikes
Type
Ss5.-150
 

 

V20-135
Ss8-140
V23-115
Ss8-150
V23-135
Ss8-160
V23-155
Ss23-160
V23-215
Ss25.-165
V26-115
Ss35.-161
Or the type by customers' drawings
Grade
4.6
5.6
8.8
10.9
Material
Q235
35#
45#
40Cr
Mechanical properties

Tensile strength: ≥400Mpa

Yield strength:≥240Mpa
Elongation:≥22%
Cold bending: 90 degree without crack

Tensile strength:≥500Mpa

Yield strength:≥300Mpa
Elongation:≥20%
Cold bending: 90 degree without crack

Tensile strength:≥800Mpa

Yield strength:≥640Mpa
Elongation:≥12%
Cold bending: 90 degree without crack

Tensile strength:≥1000Mpa

Yield strength:≥900Mpa
Elongation:≥9%
Cold bending: 90 degree without crack
Surface
plain (oiled), Oxide black, Zinc, HDG, wax, bitumen, Dacromet, Sherardizing
Standard refers
ISO898-1, UIC864-1, and NF F500-50

Why They Matter

Safety Critical: Failure risks derailment or track geometry failure.

Cost Efficiency: Reduces lifecycle costs by minimizing track downtime and replacements.

Performance: Ensures smooth rail alignment, reducing wear on rolling stock.


In addition, we have other central accessories. If you have any needs, please feel free to contact us!

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Sleeper bolts
Sleeper bolts
+
  • Sleeper bolts
  • Sleeper bolts

Sleeper bolts

Railway sleeper bolts, rail screws (or lag bolts) are large metal screw spikes used to secure tie plates or rails.


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