At before, the screw spikes are usually used to fasten the ribbed base plates and sole plates to wood sleepers. With the construction and development of the concrete sleepers, the screw spikes play an important role in railway fastening systems with the help of a plastic dowel. In order to meet the different use and standards of railway tracks, the screw spikes can be classified into so many types. Now all railroad spikes are made out of carbon steels. Through the different specific geographic requirements such as lengths, diameters, drive heads and thread profiles, the railway screw spikes can be classified into four types: Ss series sleeper screw, square head screw spike, hexagon screw spike and double-head screw spike.
The 4.6 grade Ss series sleeper screw spike is a railway fastener used to secure rails to wooden or concrete sleepers. Made from 35# carbon steel, it offers good strength and toughness to withstand dynamic loads from train operations.
| Brand | GNEE RAIL | |||
| Name | Concrete Sleeper Screw Spike | |||
| Type | Ss5.-150 | V20-135 | ||
| Ss8-140 | V23-115 | |||
| Ss8-150 | V23-135 | |||
| Ss8-160 | V23-155 | |||
| Ss23-160 | V23-215 | |||
| Ss25.-165 | V26-115 | |||
| Ss35.-161 | ||||
| Or the type by customers' drawings | ||||
| Grade | 4.6 | 5.6 | 8.8 | 10.9 |
| Material | Q235 | 35# | 45# | 40Cr |
| Mechanical properties | Tensile strength: ≥400Mpa | Tensile strength:≥500Mpa | Tensile strength:≥800Mpa | Tensile strength:≥1000Mpa |
| Yield strength:≥240Mpa | Yield strength:≥300Mpa | Yield strength:≥640Mpa | Yield strength:≥900Mpa | |
| Elongation:≥22% | Elongation:≥20% | Elongation:≥12% | Elongation:≥9% | |
| Cold bending: 90 degree without crack | Cold bending: 90 degree without crack | Cold bending: 90 degree without crack | Cold bending: 90 degree without crack | |
| Surface | plain (oiled), Oxide black, Zinc, HDG, wax, bitumen, Dacromet, Sherardizing | |||
| Standard refers | ISO898-1, UIC864-1, and NF F500-50 | |||
GNEE RAIL provides export-grade anti-rust wooden box or steel pallet packaging. Each batch is moisture-protected, labeled with specifications and batch numbers, and shipping can be arranged by sea, rail, or land, ensuring safe and timely delivery.
