A rail spike is a steel fastening connector used to secure rails to sleepers, forming a stable interface that supports rail loads, limits displacement, and maintains continuous track structure. It is indispensable for conventional ballasted track systems. GNEE RAIL provides rail spikes compatible with GB, UIC, DIN536, QU70–QU120, JIS 15KG–CR100, AS1085 31–89 kg, BS11:1985, and AREMA/ASCE 25–175 lb rails.
What are the 4 types of screw heads?
The 4 main types of rail screw spike heads, commonly used to secure rail fastening systems, are the Ss series sleeper screw, square head screw spike, hexagon screw spike, and double-head screw spike. These, along with Ss series sleeper screws (e.g., Ss5, Ss8), vary in shank length, diameter, and thread profile to fit different sleepers, often applied in SKL, KPO, and Nabla systems.
- Ss Series Sleeper Screw: A specialized, commonly used type in European standards.
| 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 |
- Square Head Screw Spike: Features a four-sided head, often used in traditional fastening systems.
| Type | Specification | Material | Surface | Standard |
| Square head screw spike | M22*145 | 45# | Natural | UIC |
| 55Q | Zinc | AREMA | ||
| M22*155 | Q235 | Paint | DIN | |
| M22*165 | or | Oil | GB | |
| M22*185 | According to your needs. | According to your needs. | or | |
| M22*195 | According to your drawings or samples. | |||
| Other kinds |
- Hexagon Screw Spike: Features a six-sided head for easier torque application.
| 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 | |||
- Double-Head Screw Spike: Designed for increased fastening strength or specific machinery installation.
| Size: 23×174 |
| Grade: 4.6, 5.6, 8.8, 10.9 |
| Raw Material: 35# |
| Raw material: Q235, 35#, 45# |
| Surface Treatment: Plain (oiled), Bluing, Zinc, HDG, etc |
What material are railroad spikes made of?
Railroad spikes, the essential fasteners that secure rails to sleepers, are primarily made of high-strength steel to withstand heavy loads, repeated vibration, and environmental exposure. The most common materials used are carbon steels and alloy steels, selected for their toughness, tensile strength, and durability.
Typical steel grades include Q235, 35#, 45#, and 40Cr. Q235 is a standard carbon steel suitable for light railway tracks and mining applications, providing good ductility and basic tensile strength. 35# and 45# steels offer higher strength and wear resistance, making them suitable for mainline and heavy-duty railway tracks. 40Cr, a chromium alloy steel, is used for crane rails and high-load industrial tracks because of its exceptional strength, toughness, and fatigue resistance.
| Material | Strength Grade | Typical Length | Tensile Strength | Surface Treatment | Typical Application |
|---|---|---|---|---|---|
| Q235 Carbon Steel | 4.6 / 5.6 | 90–250 mm | ≥ 370 MPa | Plain, Oxide Black, HDG | Light rail, mining tracks |
| 35# Carbon Steel | 4.6 / 5.6 | 90–250 mm | ≥ 450 MPa | Zinc, Sherardizing | Conventional railway |
| 45# Carbon Steel | 5.6 | 100–300 mm | ≥ 520 MPa | HDG, Dacromet | Heavy-duty industrial track |
| 40Cr Alloy Steel | 5.6 / 8.8 | 100–300 mm | ≥ 750 MPa | Dacromet, Zinc | Crane rail, high-load applications |
Rail spike, one of the products of GNEE RAIL , is used to connect the steel rail with rail sleeper or bind the rail plate and rail sleeper together.As a professional rail fasteners supplier,GNEE RAIL offers different kinds of railway fasteners to meet client's requirements, such as Elastic Rail Clip and Clamp, Plastic Dowel, High Tensile Track Bolt with Nut, Rail Base(Tie) Plate, Rail Fish Plate, Railway Shoulder(Insert), Fish Bolt, Railroad Rubber and EVA Pad, etc. Samples and drawings provided by customer, we will manufacture qualified products accordingly.
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