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Rail Spike

Dog Spike and Screw Spikes

Railroad Spike Definition

Rail Track Spike TypesRail Screw Spike and Dog Spike

AGICO is manufacturing and supplying a wide range of rail screw spikes for railways. Railroad spike, also known as railway spike, track spikes, are designed with high precision and processed under mature technologies, which has been tested for decades.

AGICO choose high grade raw materials for rail spike production, in order to satisfying higher quality standards. With better reliability, robustness and effective performance, these products are used in large railway projects.

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.

Screw Spike Drawing Sample
Rail Track Dog Spike Drawing

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

AGICO Ss Serie Srew Spike
Type Specification Weight/kg Surface Standard
Ss 1/130 M22*130 0.451
   According to your needs.
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

Square Head Screw Spike

Square Head Screw Spike for Sleeper
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.
Other kinds

Hexagon Screw Spike

AGICO Ss Serie Srew Spike

Specially designed for N 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
Technical specifications of Road Spike
Standards: AREMA, UIC or others following customer needs Model:according to customer needs Type: spike
Head type:various kinds Neck type:Various kinds Function:to fix rails
Applied range:to fasten rails of the railroad bed Body type: various kinds Length available:10--1000(mm)
Tolerance:according to customer needs Surface finish: plain oil, black, HDG, galvanized, etc. Material:Q235、35#、45#、60#、16Mn、65 Mn、40Cr、20MnTiB、35CrMo、42CrMo
Grade:3.6、4.6、4.8、5.6、5.8、6.8、8.8、9.8、10.9、12.9 Spike specifications:According to customer drawings Free sample and product customizing available

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

Rail Spike Production Process

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:

ARMEA Standard Dog Spike
  • 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.

Tensile Strength Yield Point Elongation (in 2" length sample)
70,000 psi Min 46,000 psi Min 25% Min
Material: 45# Surface: Plain MOQ: 5000PCS Packing: 200LB kegs and wooden pallets or according to clients' requirement
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 ''  
Other kinds

Steel Material Chemical Composition and Mechanical Properties:

C Mn Si P S
0.17 - 0.25% 0.9 - 1.35% 0.35 Max 0.04% Max 0.05 Max

Tensile Strength Yield Strength Elongation Reduction of Area Hardness
120,000psi(min) 92,000psi(min) 14%(min) 35%(min) HRC22-HRC32

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

AGICO Lock Spikes

The Tie Plate employ spring compression to hold tie plates firmly in place on cross ties and bridge timbers. They can be driven with standard track tools. Spikes are placed on the diagonally opposite hold-down holes of the tie plate and driven in prebored holes in the tie. Holes of 9/16 in. diameter are drilled to a depth of 7 in. below the top of the tie plate. Spikes are available in 6 in. or 7 in. lengths.Two lock spikes normally are used in conjunction with two standard cut spikes in each tie plate.

Lock Spike Specifications

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