Ss35 Sleeper Screw Plain oiled,hot dip galvanized,zinc plated Spike

Ss35 sleeper screws are core fasteners in railway track fastening systems, used to securely fix rails to sleepers, ensuring track structure stability and safety. The 24x161mm Ss35 screw is suitable for both concrete and wooden sleepers, providing excellent holding and pull-out resistance through its threaded design, effectively resisting longitudinal and lateral vibrations from train operations.

If you have special requirements for dimensions or higher strength materials, please contact us for special custom production.

To meet different environments and application requirements, Ss35 screws are available in plain oiled, hot dip galvanized, or zinc-plated finishes. Plain oiled spikes are easy to install and suitable for general environments; hot dip galvanized and zinc-plated finishes enhance corrosion and wear resistance, especially for coastal, high-humidity, and industrial environments, ensuring long-term track stability.

What are the technical requirements for screw spikes?

Generally, screw spikes can be applied to fasten railway ties, sleepers or railway turnout and also they also can be used in conjunction with plastic ferrules, casted into concrete ties /sleepers.

Railroad turnouts are made up of many railway accessories, and in order to ensure safe driving, the quality of each railway accessory must be guaranteed. Screw spikes are also one of the many railway accessories. Special attention is also required when purchasing and selecting screw spikes. Only qualified spikes can guarantee the safety of driving. So what are the technical requirements for screw spikes? The specifications as follow:

• The material of the screw spike is Q235-A steel, and the technical requirements should meet the requirements of GB700.

• The upper thread of the screw spike is M24, the basic size should meet the requirements of GB196, and the thread tolerance is made according to the 8g specified in GB197.

• The lower thread of the screw spike is special M25.6×6-d24.0/25.6 thread, and the tooth height is 3.25-00.25mm.

• The end of the screw spike is manufactured according to the provisions of GB2.

• The forged burst crack on the surface of the screw spike round table is not allowed to extend to the shaft. The upper thread does not allow for bumps and burrs that prevent the thread gauge from being freely screwed in. It is not allowed to have incomplete double cusps, scratches and threads that affect the use. The lower thread should be neatly shaped, the thread is complete, and no cracks are allowed. The surface is not allowed to have dents, burrs, flash, burns and scales that affect the use.

• The spiral spike should be subjected to the physical tensile test. When the load is 130kN, the screw spike should not be broken.

GNEE RAIL offers different kinds of railway fasteners to meet client's requirements, such as Elastic Rail Clip and Clamp, Rail Screw Spike, 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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