Rail Spikes
Rail spikes provide a mechanical interlock that offers over twice the holding power of traditional hammered railway spikes. They primarily include dog spikes and screw spikes.
Dog Spike / Cut Track Spike
The dog spike, also known as a cut track spike, is shaped like a dog’s head and is used to fasten T-shaped rails to wooden ties. Its head is sloped to match the rail flange, and the wedge-shaped tip is driven into the tie across the grain, which enhances its holding power significantly.
The square cross-section of a dog spike provides about 50% more holding strength compared to a circular spike of the same metal quantity. When driven across the grain, a dog spike can achieve approximately double the holding power compared to one driven with the grain. Early tests showed that pulling out a 9/16” × 9/16” spike driven 4¼ inches into dry cedar required an average force of 857 pounds, while in seasoned oak, it required 4281 pounds.
For detailed technical specifications, please refer to the data below.
Type | all kinds according to drawings |
Raw material | Q235 |
Size | 5/8* 6″, 9/16*5-1/2″, 3/8″*3-1/2, 1/2*3-1/2, 14*14*150, 16*16*165, etc. |
Surface | plain(oiled) |
Screw Spike
Screw spikes are commonly used to fasten timber railway ties/sleepers; however, they can also be used in conjunction with plastic ferrules that have been cast into concrete ties/sleepers.
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 |