Rail fastening system is a set of fasteners that used to connect steel rail and railway sleepers. Generally, the railway fastening system is required to have reliable connection, simple structure and features of elasticity, shock absorption and insulation. SKL rail fastening system is one kind of hot rail fastening system among the railway materials market.
As for the components of SKL railway fastening system, including SKL rail clips, rail pad, screw spike, tie plate, washer, plastic dowel, track bolt and nuts, etc. common sizes of SKL rail fastening system include SKL 12, SKL 14 and SKL 3 rail fastening system.

The SKL fastening system supplied by GNEE RAIL incorporates high-strength elastic clips along with matching bolts, baseplates and other components, effectively resisting vibrations and impacts generated during train operation to protect track structural integrity and enhance operational safety and service life.
The SKL system's design focuses on the elastic function of the clips, utilizing their elastic deformation to achieve rail fastening while allowing controlled longitudinal and lateral movement. This helps alleviate stress concentration and thermal expansion/contraction induced deformation, preventing rail loosening or misalignment.
Specifications of SKL rail fastening system
| SKL tension clip | Ss35 screw spike | Flat washer | Plastic dowel | Guide plate | Rail pad | |
|---|---|---|---|---|---|---|
| Pieces required | 2 | 2 | 2 | 2 | 2 | 1 |
| Material | 60Si2CrA, 60Si2CrA, 38Si7 | Grade 4.6: Q235; Grade 5.6: 35# Grade 8.8: 45# | Q235 | HDPE, Reinforced Nylon 66 (PA66) | Reinforced Nylon 66 (PA66) | EVA, or rubber |
| Size | skl1,skl3,skl12,skl14 | M24×150mm | Uls7 | For different sizes of screw spike | UIC54, UIC60, 50kg rail, 60kg rail, and other sizes as ordered | |
| NOTE | Hardness: 42-47HRC 5 millions cycles without breaking. Standard: DIN17221, GB/T1222 | Standard: ISO898-1, UIC864-1 and NF F500-50 | Standard: EN10025, EN10139 | To insert into concrete sleeper | Customized products available. | |
GNEE RAIL not only supplies complete SKL railway fastening systems but also provides various matching railway fasteners including bolts/nuts, gauge rods, rail pads and insulated gauge blocks, committed to delivering safe and efficient track fastening solutions for customers. For more product details and technical support, please contact GNEE RAIL.






