Application of Double-head Screw Spike in Nabla Clip Fastening System

Aug 27, 2025 Leave a message

The screw spike is also known as rail screw. As one kind of Rail spike, it is a metal screw for fixing rail fasteners. Screw spike is usually made of NO.3 steel. Because its nail rod surface has thread, so it is called screw spike. The pull-out resistance is 0.5 ~ 1.0 times larger than that of common rail spike, but the thrust resistance is 50% less. Due to disassembly and assembly inconvenience, it is difficult to adjust the rail gauge, which is generally used on the railway turnout.

 

GNEE RAIL can offer Ss series Sleeper Screw,Square head screw spike,Hexagon screw spike,Double-head screw spike,coach screws, stud screw, railway sleeper screws and other coustom screw spike in railway.

 

rail fasteners

 

Double-head screw spike

 

rail fastening

 

Specifications
Size: 23×174
Grade: 4.6, 5.6, 8.8, 10.9
Raw Material: 35#
Raw material: Q235, 35#, 45#
Surface Treatment: Plain (oiled), Bluing, Zinc, HDG, etc

 

Nabla Clip Fastening System

 

rail fixing

 

  Nabla clip Insulator Screw spike Spring washer
Pieces required 2 2 2 2
Material 60Si2MnA, 60Si2CrA Reinforced Nylon 66 (PA66) Grade5.6:35# ML08AI
Size 4mm or 4.5mm thick   UIC54,UIC60,50kg rail,60kg rail 18.25x34x78mm
Note 42-47HRC 3 million times without breaking; Application for different rail type Density:1.3-1.45g/cm3 Tensile strength:≥170Mpa Elongation:≤4.4% Bending Strength:≥250Mpa Impact Strength(No gap):≥80KJ/m2 Melting point:250-270℃ Insultion resistance:≥1X108Ω Glass fiber content:30-35% Hardness:≥110HRR Tensile strength:≥500Mpa Yield strength:≥300Mpa Elongation:≥20% Cold bending:90 degree without crack Chemical composition(%): C:0.05-0.10, Mn:0.30-0.60, Si:≤0.1, Cr:≤0.2, P:≤0.035, S:≤0.035

 

GNEE RAIL supplies various specifications of screw spikes and offers customized services according to client requirements. Contact GNEE for further product information.