24x230mm Hot Dip Galvanized Ss36 Sleeper Screw
Product:Ss36 Sleeper Screw
Size :24×L, L=150mm to 270mm
Grade:4.6, 4.8, 5.6, 5.8, 6.8, 8.8, 10.9, 12.9, etc.
Material:Q235, 35#, 45#, 40Cr, 20MnTiB, 35CrMo, 42CrMo, etc.
Surface Treatment:natural oiling, blackening, hot-dip galvanizing, electro-galvanizing, Dacromet, etc.
Packaging Details:200LB barrels and wooden pallets or as per customer requirements
rail fastening - rail screw spike
The Ss36 sleeper screw is a key fastener in railway track fastening systems. The screw is 230 mm in length, featuring a standard triangular thread for secure integration with the rail system. The square head design allows the use of spring or flat washers, enhancing track stability and preventing loosening.
Specification of Ss36 railway sleeper screw
Specification of Other Types of SS Thread Railroad Sleeper Screws
Ss36 Sleeper Screw vs Ss8 Track Sleeper Spike
The Ss36 and Ss8 are types of railway screw spikes (sleeper screws), not fundamentally different things, but rather different models within the same "Ss" series used to fasten rails to sleepers, with the numbers indicating size/specification, often for concrete sleepers, providing superior holding power to traditional dog spikes by screwing in, though Ss36 might be larger/different spec than Ss8.
Ss36 Sleeper Screw vs Ss8 Track Sleeper Spike Comparison
The key difference lies in their dimensions and strength, not their function, with Ss36 often being a larger, higher-grade screw for specific load requirements, both serving to secure the rail base plates.
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Comparison Items |
Ss36 Sleeper Screw |
Ss8 Track Sleeper Spike |
|---|---|---|
|
Primary Function |
Connects rail sole plate/tie plate to sleeper; secures rail components and ensures track stability |
Identical to Ss36: Connects rail sole plate/tie plate to sleeper; maintains track stability |
|
Model Nomenclature |
"Ss" = Ss series screw spike; "36" indicates size/specification (diameter, length) |
"Ss" = Ss series screw spike; "8" indicates size/specification (diameter, length) |
|
Dimensions |
Larger size (e.g., nominal diameter 36 mm; length 180-250 mm, customizable) |
Smaller size (specifics vary by standard, but smaller than Ss36 in diameter and length) |
|
Holding Power |
Superior holding power compared to traditional dog spikes; strong stability for heavy loads |
Same as Ss36 in type advantage: Superior holding power than dog spikes |
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Core Differences |
Larger dimensions, higher strength grade, for heavy-load conditions |
Smaller dimensions, lower strength grade, for general-load conditions |
surface treatment of Rail Screw Spike - Hot Dip Galvanized
Hot-dip galvanizing (HDG) is a common surface treatment for rail spikes, providing superior corrosion resistance by coating them in a durable, uniform zinc layer, protecting them in harsh outdoor railway environments where they secure tracks to sleepers, offering better longevity than plain or oiled finishes. The process involves cleaning the steel, immersing it in molten zinc (around 450°C), and allowing the iron and zinc to bond, creating a protective barrier against rust and wear for both dog spikes and screw spikes.
Advantages of using Hot Dip Galvanized for surface treatment of rail spikes
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Advantage Category |
Detailed Explanation |
|---|---|
|
Superior Corrosion Protection |
The zinc coating creates a barrier and offers cathodic (sacrificial) protection, preventing rust even if the coating is scratched, vital for spikes exposed to harsh railway environments. |
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Exceptional Durability |
The metallurgical bond forms hard zinc-iron alloy layers, making the coating extremely tough and resistant to abrasion from passing trains and constant stress. |
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Complete Coverage |
Immersion in molten zinc ensures all surfaces, including hard-to-reach internal threads and corners, are fully coated, eliminating vulnerable spots. |
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Long Service Life |
HDG provides maintenance-free protection for decades (25-75+ years), significantly extending spike life and reducing lifecycle costs compared to other treatments. |
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Cost-Effectiveness |
While initial costs can be comparable, the extended life and reduced need for re-coating make HDG the most economical choice long-term. |
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Enhanced Performance |
The zinc coating fills thread gaps, increasing friction and holding power, making spikes more resistant to pull-out and maintaining track integrity. |
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Fast Application & Inspection |
The process is fast, and the uniform coating is easy to inspect, ensuring quality and faster deployment. |
Application of screw spike
Rail screws are widely used in high-speed railways, urban subways, heavy freight lines, and industrial railway projects. Their high strength and corrosion resistance allow them to withstand frequent train operations and harsh environmental conditions, including bridges, tunnels, coastal areas, and ports. These screws are typically used with base plates, spring washers, and fishplate bolts to reduce vibrations and shocks during train operation, extending track life and lowering maintenance requirements.
Founded in 2008, GNEE RAILWAY RAILWAY is a professional manufacturer and exporter specializing in rail spikes and other railway fastening components, dedicated to providing reliable track safety solutions for global infrastructure projects.
Guided by the philosophy of "Quality-Oriented, Customer-First", GNEE RAILWAY RAILWAY is committed to building long-term cooperative relationships with global clients through reliable products, competitive prices, and efficient logistics services.
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