Railway sleeper spikes, also known as railway spikes. Railway spikes are designed to maintain the rail gauge between railway tracks, and they are also designed to fix steel rails to railway sleepers. Rail spikes come in various shapes for different functions.
The material used to produce railway sleeper spikes can be carbon steel or stainless steel as required, and the surface of rail spikes can be smooth, black, hot-dip galvanized, galvanized, etc.
Among various railway sleeper spikes, rail dog spike and rail screw spike are the most common types.
Rail Dog Spikes:
Dog spikes are also called cut spikes. As the name suggests, dog spikes have an L-shaped head that looks like a dog's head and a square handle. Its head is inclined to fit the top surface of the rail baseplate. Generally speaking, dog spikes of different sizes are provided to meet the requirements of different spike penetration lengths. For smaller rail parts, 5/8”*6” and 9/16”*5-1/2” are the two most common types of dog spikes. They are usually packaged in 200-pound buckets or 50-pound buckets. .
Size: 5/8×6”, 9/16×5-1/2”, 3/8”×3-1/2”, 1/2×3-1/2, etc.
Material: A3, Q235, 45#, 55#, etc.
Surface: plain (oiled), black oxide, zinc, hot-dip galvanizing, wax, asphalt, dacromet, sherardizing
Standard: According to customer's drawings or samples.
Rail Screw Spikes
Railway screw spikes are usually used to fix concrete sleepers. They can be screwed into plastic dowels cast into the concrete sleepers. Different from dog spikes, railway screw spikes can vary in terms of thread profile, length, diameter and drive head according to different international standards and specific geographic requirements.
1) Ss series sleeper screw spikes
Ss series sleeper screw spikes are one of our best-selling railway fasteners.
or according to your needs.
or according to your drawings or samples.
2) Square head screw spikes
This type of railway screw spikes have a square head on one side and a thread on the other side.
|Square head screw spike||M22*145||45#||Natural||UIC|
|M22*195||According to your needs.||According to your needs.||or|
|other kinds||According to your drawings or samples.|
3) Hexagonal screws spikes
Hexagon screw spikes include several different sizes, such as: M22*145, M22*155, M22*165, M22*185, M22*195, etc.
|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|
4) Double-head screw spikes
Double-head screw spikes have been used with the Nabla clip fastening system, especially popular in Africa. In order to meet the strict bending requirements, special raw materials are used, and the bending is more than 30 degrees, straightening without cracks.
Grade: 4.6, 5.6, 8.8, 10.9
Raw material: 35#
Raw materials: Q235, 35#, 45#
Surface treatment: ordinary (oiled), bluing, zinc, hot-dip galvanizing, etc.
The manufacturing process of rail screw spikes:
Raw material → wire drawing → bar cutting → head forming → trimming → thread rolling → heat treatment → surface treatment → final inspection → packaging → shipment
Comparison of dog spikes and screw spikes:
1. The clamping force provided by screw spikes is more than twice that of dog spikes.
2. The production cost of screw spikes is higher than that of dog spikes
3. Screw spikes can also be used with spring washers.