Fastening System Rail Dog Spike

Standard

Model Code

Shank Type

Key Dimensions (mm)

Matching Rail Fastener

Compatible Sleeper Material

Installation Depth (mm)

Service Life (Years)

GB/T 152-2019 (China)

DS-G20×160

Smooth Shank

Shank Diameter:20; Length:160; Head Height:18

E-Type Clip System

Wooden/Composite Sleepers

120–130

8–12

AREMA (USA)

DS-A22×180

Ribbed Shank

Shank Diameter:22; Length:180; Head Height:20

Pandrol Fastclip System

Concrete Sleepers

140–150

10–15

BS EN 13481-4 (EU)

DS-E18×140

Threaded Shank

Shank Diameter:18; Length:140; Head Height:16

SKL Clip System

Anti-Corrosion Wooden Sleepers

110–120

9–13

JIS E 2015 (Japan)

DS-J19×150

Knurled Shank

Shank Diameter:19; Length:150; Head Height:17

Nabla Clip System

Concrete/Wooden Sleepers

125–135

8–14

UIC 864-2 (Int'l)

DS-U21×170

Hexagonal Shank

Shank Diameter:21; Length:170; Head Height:19

Vossloh Fastener System

Composite Sleepers

135–145

11–16

Operating Environment

Corrosion Risk Level

Key Performance Challenges

Recommended Material & Surface Treatment

Reinforcement Measures

Inspection Frequency

Coastal Railway (High Humidity/Salt)

High

1. Rapid coating degradation; 2. Shank rust-induced loosening

20MnTiB Steel + Zinc-Aluminum Coating (20–25μm)

1. Add anti-corrosion washer; 2. Apply anti-rust grease at shank-sleeper interface

Monthly (first 6 months); Quarterly (after 6 months)

Desert Railway (High Temperature/Sand)

Medium

1. Coating abrasion by sand; 2. Material softening at high temp

45# Steel + Epoxy Powder Coating (60–80μm)

1. Use sand-proof sleeve; 2. Select high-temperature-resistant material

Bi-monthly

Mountain Railway (Low Temperature/Frost)

Medium-Low

1. Material brittleness at low temp; 2. Frost heave-induced sleeper crack

Q345 Steel + Hot-Dip Galvanizing (≥85μm)

1. Pre-heat spikes before installation (-10℃ below); 2. Use frost-resistant sleeper

Quarterly

Mining Railway (Acid Gas/Dust)

High

1. Acid corrosion on shank; 2. Dust accumulation-induced poor contact

316 Stainless Steel + Passivation Treatment

1. Install acid-proof cover; 2. Regular dust removal

Weekly (acid gas area); Bi-weekly (dust area)

Urban Metro (High Vibration)

Medium

1. Vibration-induced loosening; 2. Fatigue fracture at head-shank junction

60Si2Mn Steel + Dacromet Coating (15–20μm)

1. Increase installation torque by 10%; 2. Add anti-vibration washer

Monthly