DHS35 Screw Spike

For SKL14/W14 rail fastening systems, Lanling offers DHS35 railway screws. We are a skilled producer of DHS35 screw spikes, offering a range of products that satisfy international standards like DIN, GOST, AREMA, GB/TB, BS, and JIS in addition to various grades of DHS35 spikes.
Natural color, blackening, galvanizing, Dacromet, and other surface treatment techniques are available for DHS35 screw spikes, which can be tailored to the needs of the customer.

 

Size	Diameter: 24mm; Length: 158mm, 161mm
Grade	4.6,4.8,5.6,5.8,6.8,8.8,10.9,12.9
Material	Q235,35#,45#,40Cr,20MnTiB,35CrMo,42CrMo
Application	railway, high speed railway, used for concrete sleepers

 

 

 

Mechanical property	Tensile strength: ≥ 400MPa	Tensile strength: ≥ 500MPa	Tensile strength: ≥ 800MPa	Tensile strength: ≥ 1000MPa
	Yield strength: ≥ 240MPa	Yield strength: ≥ 300MPa	Yield strength: ≥ 640MPa	Yield strength: ≥ 900MPa
	Longation: ≥ 22%	Longation: ≥ 20%	Longation: ≥ 12%	Longation: ≥ 9%
	Cold bending: 90 degrees without cracks	Cold bending: 90 degrees without cracks	Cold bending: 90 degrees without cracks	Cold bending: 90 degrees without cracks
Surface	Natural (oiled), Black, Zinc, HDG, Wax, Asphalt, Dacromet, Zincation
Standard refers	ISO898-1,UIC864-1 and NF F500-50

 

Performance Of DHS35 Screw Spikes

 

• Mechanical properties of DHS35 spikes

Physical tensile strength: tensile strength ≥ 500 Mpa.
Bar test: tensile strength ≥ 500 Mpa, yield strength ≥ 300 Mpa, elongation ≥ 20%.

 

• Cold bending performance of DHS35 steel track spikes

The crack depth of the threaded part after the 30° cold bending test is not more than 1.0mm, and the anti-rust layer and the surface of the substrate are allowed to have slight peeling, wrinkles and cracks.

 

 

 Quality Control

All DHS35 screw spikes are produced by Lanling and undergo strict quality control procedures, including hardness testing, thread precision inspection, and anti-corrosion testing.
Our advanced forging, threading, and heat-treatment equipment ensure each product meets international standards for railway fastening components.

 Packaging & Transportation

• Moisture-proof performance reaches 99% when a five-layer reinforced protective packaging method is used.
• Every box load-bearing test weighs more than 1000 kg.
• Transportation vibration can be reduced by 90% with a special shockproof liner.
• Every product has an RFID smart traceability sticker that can be tracked around-the-clock.

 Our Strength

As a leading Rail Fastening Clip manufacturer in China, Wuxi Lanling Railway Equipment Co., Ltd. has been engaged in railway component production since 1989.

• Strong R&D Capability: Over 8 engineers and complete in-house design & testing facilities.
• Large Production Scale: Annual output of 10 million railway fasteners.
• Full Certification: ISO9001:2015 and CRCC approved for railway use.
• Global Reach: Our DHS35 Screw Spike is exported to Europe, South America, and Asia.
• Efficient Supply Chain: From raw material sourcing to final delivery, we ensure fast turnaround and stable quality.

We provide full technical support and after-sales assistance, including installation guidance, inspection service, and maintenance consultation. Our experienced engineers are available for project-specific customization and field support, ensuring long-term cooperation and satisfaction.

 

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