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Railroad Spikes

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Railroad spike, or called track spike, is a large nail with an offset head that is used to secure steel rails and base plates to railway sleepers in the track. Generally speaking, railroad spikes have various shapes serving for different functions, such as dog spike, screw spike, Ss series sleeper screw, square head screw spike, hexagon screw spike, double-head screw spike and so on. Among these various railroad spikes, dog spikes and screw spikes are the most two common types.

The material for railroad spikes production can be carbon steel or stainless steel based on different requirements. According to customers’ needs, the surface of the spikes can be plain, black, hot dipped galvanized, or sherardized, etc.

Dog spike

Dog spike is also called cut spike, as its name, dog spike has an L-shaped head which looks like a dog’s head and a square shank whose head is sloped to fit the top surface of the rail base. In general, spikes with various sizes are provided to meet the different requirements of penetrating length of spikes. For smaller rail sections, the 5/8”*6” and the 9/16”*5-1/2” are the most two common types of dog spikes, and they are usually packaged in either 200 lb. kegs or 50 lb. kegs.

Specification: 5/8×6 '', 9/16×5-1/2 '', 3/8''×3-1/2 '', 1/2×3-1/2 and other kinds.

Material: A3, Q235, 45#, 55#, etc.

Surface: According to customer’s needs.

Standard: According to customer’s drawings or samples.

Screw spike

Railroad screw spikes are usually used to fasten concrete rail sleepers, and they can be screwed in plastic ferrules that casted into concrete rail sleepers. Unlike dog spikes, rail screw spikes can be various from thread profiles, lengths, diameters and drive heads based on different international standards and specific geographic requirements.

Ss series sleeper screw

As its name, double-head screw spike has two screw heads on both sides. Double-head screw spike are often 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.

Type	Specification	Weight/kg	Surface	Standard
Ss1/130	M22*130	0.451	Natural, Zinc, Paint, Oil, or according to your needs.	UIC, AREMA, GB, or according to your drawings or samples.
Ss1/150	M22*150	0.478
Ss2/180	M22*180	0.595
Ss5/150	M24*150	0.545
Ss6/150	M26*150	0.702
Ss7/180	M24*180	0.636
Ss8/140	M24*140	0.528
Ss8/150	M24*150	0.548

Square head screw spike

As its name, this type of railroad spikes has a square head on one side and screw thread on the other side.

Type	Specification	Material	Surface	Standard
Square head screw spike	M22*145	45#	Natural	UIC
	M22*155	55Q	Zinc	AREMA
	M22*165	Q235	Paint	DIN
	M22*185	or	Oil	GB
	M22*195	According to your needs.	According to your needs.	or
	other kinds			According to your drawings or samples.

Hexagon screw spike

Hexagon screw spikes include several different sizes such as: M22*145, M22*155, M22*165, M22*185, M22*195 and so on. Below are the parameters of hexagon screw spikes:

Grade	4.6	5.6	8.8	10.9
Material	Q235	35#	45#	40Cr
Mechanical	Tensile strength: 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
Surface	Plain (oiled) , Oxide black, Zinc, HDG, Wax, Bitumen, Dacromet, Sherardizing