Rail Spike

Railroad Spike Definition

Dog Spike and Screw Spike

Dog spikes and screw spikes are two most common railroad spikes that AGICO manufactures,it is small part used to ensure the safety of railway fastening systems. Both spike functions by the equipped offset head, so as to work as a nail that secure and fasten rails on the rail sleeper.

Dog spike was first to be invented in 1832, its named for the two lugs on either side which looks like a dog head, it has similar dimensions to screw spike, with a flange with a radius dog spike can fix rail track straight to rail sleeper. While screw spike firstly showed up in 1860, and it became more popular than dog spike for its greater fixing power, even if the cost to manafacture screw spikes is higher than dog spike, the maintain cost of screw spike is lower. Generally speaking, Screw spike are mostly used in heavy rail applications, dog spike are used in light rail tracks.

Screw Spike Types:

Screw spike is also called sleeper screw, rail screw, through specific requirements such as length, diameter, drive head and thread profiles, the railway screw spikes can be classified into four types, including the Ss series sleeper screw, the square-head screw spike, the hexagon screw spike, and the double-head screw spike.

Ss series Rail Sleeper Screw Spike

Square Head Screw Spike

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

Specially designed for Nabla clip fastening system, it is very popular in Africa railways. It has very strict bending requirement, special raw material is applied by straightening with no crack after bending 30 degrees or so.

Screw Spike for Wooden Sleeper (high tension screw spike)

Size: 15/16×6-1/2 Surface Treatment: Plain (waxed), Black painting MOQ: 5000PCS Packing: 38PCS in 50LB plastic keg

Screw Spike Manufacturing Process:

Manufacturing Process for screw spike: Raw Material→Wiredrawing→Rod Cutting→Head Forming→Edge Cutting→Thread Rolling→Heating Treatment→Surface Treatment→Final Inspection→Packing→Shipment

Dog Spike Types AGICO Supplies:

The rail dog spike is put into use in many applications from coal and gold mines to sugar plantations, leisure parks, as well as in some heavy rail applications. AGICO rail spike or dog spikes are manufactured in accordance with a series of international standards such as GB, AREMA or ASTM, BS, UIC, material using either carbon or stainless steel. AGICO fabricates dog spikes in varying sizes to suit each customer requirements at economical prices, including the typical samples shown below:

• This rail spike is manufactured according to ARMEA specifications. Size: 3/4", 1/2", 5/8" Length: 3", 3-1/2", 4-1/2", 5", 5-1/2", 6" Material: Q235 Surface: Plain MOQ: 5000PCS Packing: 200LB kegs and wooden pallets or according to clients' requirement
• This is a track spike with high tensile grade of the AREMA specification. The material is the medium carbon steel.

Material: 45# Surface: Plain MOQ: 5000PCS Packing: 200LB kegs and wooden pallets or according to clients' requirement

Steel Material Chemical Composition and Mechanical Properties:

Dog Spike Used in Wooden Sleeper or Ties

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.

Lock Spikes