Railroad spike, also know as rail spike. Railroad spikes are designed to maintain gauge between the running rails and also they are mean to secure the steel rail to the railroad tie. Rail spikes have various shapes serving for different functions. The materials for railroad spikes production can be carbon or stainless steel based on the requirement, and the surface of the spikes can be plain, black, hot dipped galvanized, or sherardized, etc. Among the various railroad spikes, dog spikes and the screw spikes are the most common types.
Specifications of rail spikes:
The dog spike is used to fasten T-shaped rail road track to wooden ties, which has an L-shaped head and square shank, and the underside of whose head is sloped to fit the top surface of the rail base. Spikes with various sizes are provided to meet the different requirements of penetrating length of spikes. The common track spikes are the 5/8”*6” and the 9/16”*5-1/2” for smaller rail sections, and they are usually secured in either 200 lb. kegs or 50 lb. kegs.
Specification | Material | Surface | Standard |
5/8*6 '' | A3,Q235, 45#,55#, etc | According to customer needs. |
According to customer’s drawings or samples.
|
9/16*5-1/2 '' | |||
3/8''*3-1/2 '' | |||
1/2*3-1/2 | |||
Other kinds |
Railway screw spikes are usually used to fasten railway ties or sleepers and also they also can be used in conjunction with plastic ferrules, casted into concrete ties /sleepers. Rail screw spikes can be various in thread profiles, lengths, diameters and drive heads based on specific geographic requirements.
Ss series sleeper screw is one of our hot sales, with different dimensions as shown below
Type | Specification | Weight/kg | Surface | Standard |
Ss 1/130 | M22*130 | 0.451 |
Natural
Zinc
Paint
Oil
According to your needs.
|
UIC
AREMA
GB
or
According to your drawings or samples.
|
Ss 1/150 | M22*150 | 0.478 | ||
Ss 2/180 | M22*150 | 0.595 | ||
Ss 5/150 | M24*150 | 0.545 | ||
Ss 6/150 | M26*150 | 0.702 | ||
Ss 7/180 | M24*180 | 0.636 | ||
Ss 8/140 | M24*140 | 0.528 | ||
Ss 8/150 | M24*150 | 0.548 |
Type
|
Specification
|
Material | Surface |
Standard
|
Square head screw spike | M22*145 |
45#
55Q
Q235
or
According to your needs.
|
Natural
Zinc
Paint
Oil
According to your needs.
|
UIC
AREMA
DIN
GB
or
According to your drawings or samples.
|
M22*155 | ||||
M22*165 | ||||
M22*185 | ||||
M22*195 | ||||
Other kinds |
Hexagon screw spike includes several different sizes such as:M22*145, M22*155, M22*165, M22*185, M22*195, and so on.
Grade | 4.6 | 5 .6 | 8.8 | 10.9 |
Material | Q235 | 35# | 45# | 40Cr |
Mechanical | 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 | Cold bending: 90 degree | Cold bending: 90 degree | Cold bending: 90 degree | |
without crack | without crack | without crack | without crack | |
Surface | plain (oiled) , Oxide black, Zinc, HDG, wax, bitumen, Dacromet, Sherardizing |
The two-end-head screw spike is always used with Nabla clip fastening system, especially popular used in Africa. To meet the strict bending requirement, special raw material is applied by straightening it without any crack after bending 30 degrees or even more.
Raw Material→Wiredrawing→Rod Cutting→Head Forming→Edge Cutting→Thread Rolling→Heating Treatment→Surface Treatment→Final Inspection→Packing→Shipment
Firstly, the screw spikes provides more than twice of the holding power than that of the dog spikes. Secondly, The production cost of a screw spike is higher than that of a dog spike or dog nail. Thirdly, a screw spike can also be used together with a spring washer. No matter it is a dog spike or a screw spike, it will be the best spike, if it is used in the right place. For more information regarding the differences, please read this post.