What are sleeper screws?

A rail spike is a structural fastening element that fixes rails to sleepers by mechanical penetration or threaded engagement, ensuring resistance to longitudinal rail creep, lateral displacement, and vertical uplift caused by wheel loads and braking forces. It is essential for keeping the rail seated on its designed position.

GNEE RAIL produces standard spikes, Coach Screw Spikes, and 3V screw spikes compatible with GB, UIC, DIN536, QU, JIS, AS1085, BS11, and AREMA/ASCE rail profiles, offering material grades Q235, 35#, 45#, and 40Cr, as well as surface treatment and technical installation support.

What are sleeper screws?

Rail sleeper screws (or rail screw spikes) are large, heavy-duty threaded fasteners used to secure steel rail base plates or rails directly to wooden or concrete sleepers, ensuring track gauge stability. They feature a high-torque square or hexagonal head, a single coarse thread, and are often used in pairs with plastic dowels for concrete ties.

Key Details About Rail Sleeper Screws

• Purpose: They provide a stronger, more secure hold than traditional cut spikes, reducing maintenance needs.

• Design: These fasteners have a thick, threaded shaft (often 12mm to 24mm in diameter) with a square or hexagonal head designed for high-torque installation.

• Material: Usually manufactured from high-tensile carbon steel or alloy steel to withstand heavy loads (e.g., 550-700 N/mm²).

Types of rail sleeper screws

Rail sleeper screws (or coach screws/screw spikes) are essential heavy-duty fasteners used to secure rail chairs, baseplates, or directly fasten rails to wooden or concrete sleepers. Key types include Ss-series (e.g., Ss8-160), 3V-type (e.g., V23-135), coach screws, and double-head spikes, often featuring square or hexagonal heads and hot-dip galvanized coatings for durability.

Key Types of Rail Sleeper Screws

• Ss Series Sleeper Screws (Ss8-160, Ss23-160, Ss25-165, Ss35-161): Often used in European or international standard railway systems for high-performance fastening, with sizes frequently M24x160 or M24x165.

• V-Type Sleeper Screws (V23-135, V23-155, V26-115): Compliance-focused screws often meeting standards like NF F50-006, Grade 4.6 or 5.6.

• Coach Screws (Tirefond Screw): Heavy-duty lag screws (e.g., Ss 6/150, Ss 8/150) used for securing rail fasteners, usually with square or hexagonal heads.

• Double-Head Screw Spike: Designed to provide improved clamping force and stability, often used in conjunction with concrete sleeper fastening systems.

• Square/Hexagon Head Screws: Classified by their head shape for better torque application during installation, common in both timber and concrete applications.

Rail spike, one of the products of GNEE RAIL , is used to connect the steel rail with rail sleeper or bind the rail plate and rail sleeper together.As a professional rail fasteners supplier,GNEE RAIL offers different kinds of railway fasteners to meet client's requirements, such as Elastic Rail Clip and Clamp, Plastic Dowel, High Tensile Track Bolt with Nut, Rail Base(Tie) Plate, Rail Fish Plate, Railway Shoulder(Insert), Fish Bolt, Railroad Rubber and EVA Pad, etc. Samples and drawings provided by customer, we will manufacture qualified products accordingly.

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