Screw spikes are common fasteners in railway track systems, primarily used to secure rails to sleepers. Grade 4.8 screw spikes refer to their mechanical performance classification, where the numerical value represents the tensile strength-to-yield strength ratio.
The digit "4" indicates a tensile strength of 400 MPa for the spike material, while ".8" denotes a yield strength-to-tensile strength ratio of 0.8. This signifies moderate strength combined with excellent ductility, enabling the spike to withstand cyclic loading without fracturing. GNEE RAIL supplies screw spikes across various grades (4.8, 5.6, 8.8). Beyond standardized products, we offer customization services. if you have non-standard rail components, please contact us with drawings or specifications, in a word, if you have any need, please contact!
Railway Screw Spike
| Type | Ss5, Ss 8, Ss25, Ss36, UIC864-1 Series, etc |
| Raw material | Q235, 35 steel, 45steel, 40Mn2, 20 Mn Si |
| Grade | 4.6, 4.8, 5.6, 8.8 |
| Surface | plain(oiled), black paint, color paint, zinc, HDG, etc |
GNEE RAIL's Grade 4.8 screw spikes typically feature the following specifications: diameter 16 mm, length 150 mm; diameter 18 mm, length 180 mm. Different specifications suit varying rail and sleeper types. The hexagonal head design facilitates installation and removal using specialized tools.
