A rail dog spike is a widely used type of rail fastener, primarily designed to secure rails to wooden sleepers. The name "dog spike" comes from the distinctive shape of its head, which resembles a dog's head. Typically, this type of spike features a square shank, a tapered body, and a wide, flat head for hammering. The spike is driven into the wooden sleeper by hammering, creating mechanical interlock to prevent lateral and longitudinal rail movement. As a key component of the rail fastening system, dog spikes are commonly used in light railways, industrial tracks, narrow-gauge railways, and logging railroads.
As a professional supplier of rail fastening solutions, GNEE RAIL offers various specifications of dog spikes, including plain carbon steel dog spikes, hot-dip galvanized dog spikes, black oxide-treated dog spikes, and double-head dog spikes (also known as "figure-8 dog spikes"). We also provide customized services based on customer requirements for material (e.g., Q235, 45# steel), dimensions (e.g., 5/8"×6", 9/16"×5.5"), and surface treatment. In addition, GNEE RAIL supplies a full range of compatible components such as joint bars (fish plates), tie plates, gauge rods, screw spikes, rail pads, sleeper bolts, and steel rail products, to meet the comprehensive demands of different railway systems.
Structural Features and Advantages of Dog Spikes
Dog spikes are forged from carbon steel, offering high shear resistance and pull-out strength. The square shank enhances frictional resistance within the wooden sleeper, while the broad head design facilitates hammering. Due to their simple installation and low maintenance cost, dog spikes are considered a cost-effective fastening solution for low-to-medium-speed railway lines and industrial tracks. Although dog spikes offer slightly lower vibration resistance compared to screw spikes, they remain valuable in projects with rugged terrain or limited budgets where simplicity and economy are essential.
Manufacturing Process of Dog Spikes
The typical manufacturing process for dog spikes involves the following stages:
Material selection → Cutting → Heating → Forging → Surface treatment → Quality inspection & packaging.
High-quality materials such as Q235 and 45# steel are selected for forging. The steel billets are heated to 900–1100°C and forged using a friction press or drop hammer to achieve the required shape. To enhance corrosion resistance, surface treatments such as hot-dip galvanizing, black oxide coating, or Dacromet plating are applied. GNEE RAIL provides dog spikes compliant with international standards including AREMA, GB/T, DIN, BS, and EN, and can furnish third-party inspection reports upon request.
Comparison with Other Types of Rail Spikes
Compared to dog spikes, screw spikes are installed by threading into sleepers and offer superior fastening force, making them suitable for high-speed railways and concrete sleeper tracks. Common spikes, on the other hand, are often used for temporary lines or routine maintenance.
GNEE RAIL provides a wide range of spike types, helping customers select the optimal fastening solution based on track design and environmental conditions.
GNEE RAIL specializes in the production of a full range of railway fasteners, including spring clip systems (Type I/II/e spring clips, W spring clips, SKL fasteners), bolt assemblies (sleeper square head bolts, T-head bolts, anchor screw spikes), insulation components (rubber pads, microporous rubber pads, nylon gauge blocks), anti-loosening systems (self-locking nuts, double anti-loosening washers, spring washers), embedded casings (nylon casings, cast iron casings), iron shims (standard/composite), gauge plates (cast iron/nylon plate seats), press washers, rail underlayment, and various spring washers and flat washers. We strictly adhere to global standards such as EN 13481, TB/T 3395, and AREMA. For more product information, please contact us.