Heavy-Duty M21X149 Railway Screw Spike for Turnout Track Systems

• Customization: Available
• After-sales Service: Warranty
• Warranty: 3 Years
• Model NO.: Screw Spike
• Customized: Customized
• Certification: ISO9001
• Type: Sleeper
• Surface: Plain Oil or HDG
• Grade: 4.6, 5.6, 8.8
• Material: Q235, 35# ,45#
• Size: M24*150
• Transport Package: Plastic Bags + Wooden Pallets
• Specification: M24*150
• Origin: China
• HS Code: 73181590
• Production Capacity: 500000pieces/Years
• Package Size: 150.00cm * 300.00cm * 200.00cm
• Package Gross Weight: 5.000kg

Product Description

Product Description

 

The screw spike, known far and wide as a rail screw, is an indispensable type of Rail spike, representing a robust metal screw designed specifically for securing rail fasteners. Typically crafted from NO.3 steel, the screw spike boasts a threaded nail rod surface, which earns it its distinctive name. Its pull-out resistance exceeds that of common rail spikes by a remarkable 0.5 to 1.0 times, though its thrust resistance is reduced by 50%. Despite challenges in disassembly and assembly, particularly in adjusting rail gauge, it's the preferred choice for railway turnouts.

To cater to diverse client requirements, we proudly offer a variety of screw spikes, including coach screws, stud screws, railway sleeper screws, and other customizable options tailored for railway applications.
While the initial investment in screw spikes is higher compared to dog spikes, the benefits are substantial. The fixing power is approximately double that of traditional rail spikes and can be further enhanced when used alongside spring washers.

An essential starting point is rigorous screw testing, initiated with the wire rod utilized for the screw. The excellence of precision screws is intrinsically linked to the quality of the wire used in production.

Subsequently, the focus shifts to inspecting head screw formation. This process hinges on mould testing, which is crucial for the smooth formation of screw spikes. Superior moulds lay the foundation for exceptional screw spikes. Following this, inspection of the production machinery is vital for ensuring a safe and efficient production process. It's imperative that formed screw spikes are checked for burrs and measured for precise sizing.

The next crucial stage involves careful detection of the screw thread. Both thread pitch and specifications must align with the exacting standards set by customers and international guidelines.
The final step involves thorough inspection prior to shipment. Through meticulous selection, we ensure only the highest quality screw spikes reach our esteemed customers, discarding any that fail to meet our standards.
Size

Product	Specification	Material	Unit weight	Surface treatment
Screw Spike	M24*160	Q235	0.66kg/pc	Plain
	M21*149		0.61kg/pc
	M22*180		0.654kg/pc	Hot-dip galvanized