SS8 SS25 SS35 Railway Sleeper Screw | Railway Screw Spike Supplier
Introduction

Railway screw spikes are essential fasteners within railway track systems, used to securely fasten rails and base plates onto timber or concrete sleepers. They ensures a reliable connection between the rail and the sleeper, maintains gauge stability, and maintains the overall operational safety of railway lines.
Our screw spikes are precision forged of high-strength steel, offering tight thread engagement and superior anti-loosening performance. They provide good corrosion resistance and anti-aging properties, together with reliable anchorage, high load-bearing capacity, and long service life, fully satisfying the safety demands of track operation. We specialize in manufacturing a full range of railway screw spikes. Below are our SS8, SS25 and SS35 railway screw spikes supplied to our European clients. Please refer to the drawing and technical requirements below for details.
1. SS8 Railway Sleeper Screw (Schwellenschraube)
SS8 Railway Sleeper Screw (Schwellenschraube) Technical Drawing

SS8 Railway Sleeper Screw (Schwellenschraube) Specifications (Hot‑dip galvanized)
| Short Designation | Overall Length L (mm) | Thread Length l (mm) | Spanner Size s (mm) | Unit Weight (kg) | Surface Treatment |
|---|---|---|---|---|---|
| Ss 8‑190 | 190 | 182 | 67 | 0.683 | Hot‑dip galvanized |
| Ss 8‑160 | 160 | 152 | 37 | 0.576 | Hot‑dip galvanized |
| Ss 8‑150 | 150 | 142 | 37 | 0.555 | Hot‑dip galvanized |
| Ss 8‑140 | 140 | 132 | 37 | 0.534 | Hot‑dip galvanized |
SS8 Railway Sleeper Screw (Schwellenschraube) Specifications (Untreated)
| Short Designation | Overall Length L (mm) | Thread Length l (mm) | Spanner Size s (mm) | Unit Weight (kg) | Surface Treatment |
|---|---|---|---|---|---|
| Ss 8‑190 | 190 | 182 | 67 | 0.680 | Untreated |
| Ss 8‑160 | 160 | 152 | 37 | 0.568 | Untreated |
| Ss 8‑150 | 150 | 142 | 37 | 0.548 | Untreated |
| Ss 8‑140 | 140 | 132 | 37 | 0.528 | Untreated |
SS8 Railway Sleeper Screw (Schwellenschraube) Technical Requirements:
1. The designation, manufacturer’s mark, strength class and the last two letters of the production date on the SS8 screw spike shall be stamped in font DIN 1451-2C; character height: 1.5-5.0 mm. 2. SS 8 screw spikes are manufactured and undergo acceptance in accordance with DBS 918 024. 3. The end of the thread may be finished as a concave (crater-shaped) recess, depending on different manufacturing processes. 4. Delivery condition: Untreated. 5. Optional hot-dip galvanized treatment in compliance with DIN EN ISO 1461. 6. Inspection of the limit dimensions of the SS 8 screw spikes shall be carried out at specified inspection intervals.
2. SS25 Railway Sleeper Screw (Schwellenschraube)
SS25 Railway Sleeper Screw (Schwellenschraube) Technical Drawing

SS25 Railway Sleeper Screw (Schwellenschraube) Specifications
| Description | Short Designation | Property Class | Weight (kg) |
|---|---|---|---|
| Ss25 screw spike, hot‑dip galvanized | Ss 25 / Uls 7 | 5.6 | 0.634 |
| Ss25 screw spike, untreated | Ss 25 / Uls 7 | 5.6 | 0.632 |
SS25 Railway Sleeper Screw (Schwellenschraube) Technical Requirements:
1. Marking: Designation, manufacturer's mark, strength class and the last two digits of the production date shall be stamped on the SS25 screw spike in font DIN 1451-2C; character height 1.5–5.0 mm. 2. Manufacture & acceptance: Manufactured and accepted in accordance with DBS 918 024. 3. Thread end: May be finished as a concave (crater-shaped) recess, depending on the manufacturing process. 4. Delivery condition: Untreated; hot-dip galvanizing per DIN EN ISO 1461 available on request. 5. Inspection: Limit dimensions are inspected at specified intervals.
3. Ss35 Railway Screw Spike With Uls7 Washer for W14 Rail Fastening System
Ss35 Railway Sleeper Screw Technical Drawing

Ss35 Railway Sleeper Screw Specification
| Product Name | Specifications and Models | Weight (KG) |
|---|---|---|
| Screw / Washer | Ss 35 / Uls 7 | 0.656 |
Ss35 Railway Sleeper Screw Technical Requirements:
1. Code designation, supplier’s mark, property class and last two-digits of manufacturing year shall be marked on the product. 2. A concave profile is permitted at the thread tail. 3. This drawing is converted from reference original drawing VA-1.3225.g. 4. Standard delivery condition: bare finish. 5. Optional finishes: hot-dip galvanized or Dacromet coating.
Our Ss35 Railway Screw Spike Products
Railway Screw Spike Application
We are professional, experienced manufacturers of railway screw spikes. Our manufactured railway sleeper screw offer excellent pull-out resistance, fatigue performance and fastening performance. They are suitable for a wide range of track operating conditions. As shown in the figure below, Our railway screw spike serves multiple rail lines, including passenger railways, heavy haul railways, urban metro and industrial tracks. We can customize railway screw spike according to your project requirements.

Successful Projects of Our Railway Screw Spike
We specialize in manufacturing high‑performance railway screw spikes. As shown in the figure below, our railway screw spike are successfully applied to key projects such as Dongying Port Shugang Railway, Lanzhou‑Xinjiang Railway and Chongqing Metro Line 6, etc. To be mentioned, our railway spikes have been exported to the United States, Russia, Kazakhstan and many African Belt‑and‑Road participating countries. Custom solutions are offered to match your specific requirements or customer‑provided drawings. If you have any needs, feel free to contact us.

Professional Manufacturer of Railway Screw Spike
We are a professional and trusted manufacturer of railway screw spikes. We have complete automated manufacturing facilities for railway screw spikes, featuring robotic-arm hot-forging lines. As shown in the photos below, you can see our hot-forging process and finished, heat-treated railway screw spikes. We use precise heating, forging, and heat-treatment processes, to ensure our railway screw spikes deliver excellent pull-out resistance, fatigue performance, and fastening performance. As a professional manufacturer of railway screw spikes, we guarantee reliable quality of our products. And we can offer custom solutions tailored to your specific requirements. If you have any needs, feel free to contact us. We are a professional manufacturer of railway screw spikes. We look forward to partnering with customers worldwide and doing our utmost to serve you.


