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DHS35 Screw Spike

Gnee provides DHS35 railway screws for SKL14/ W14 rail fastening systems. We are a professional manufacturer of DHS35 screw spikes, providing different grades of DHS35 spikes and a variety of products that meet global standards such as DIN, GOST, AREMA, GB/TB, BS and JIS.
DHS35 screw spikes can be customized according to customer needs, and the surface treatment methods include natural color, blackening, galvanizing, Dacromet, etc. to meet different usage environments and requirements.

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Additional information

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

Specifications Of DHS35 Spikes

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

Product Description

DHS35 screw spikes belongs to the same series of size specifications as similar products such as Ss5, Ss8, Ss25, Ss36. It is mainly used for the connection between rails and concrete sleepers and is an important accessory in railway track laying. Compared with ordinary spikes, it has a larger pull-out force, usually about 1.5 to 2 times that of ordinary spikes, which can more firmly connect the rails and concrete sleepers together, ensuring the stability and safety of the railway track during train operation.

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.

Additional information

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

Choose Gnee DHS35 Screw Spikes

Qualifications and Systems

Gnee has always regarded “quality certainty” as the lifeline of the company. In the development of railway equipment, we deeply implement the ISO9001-2015 international quality management standard and have officially obtained a railway product manufacturing license.

Strict Quality Control
To ensure that every fastener delivered to our customers meets contractual requirements, Gnee has established a three-pronged quality assurance system:

  • Supplier Traceability System: A strict entry mechanism is implemented. All raw materials must be accompanied by chemical composition and mechanical performance reports and undergo sampling verification by our laboratory. Those that do not meet the standards are resolutely rejected.
  • Standardized Production Process: We possess advanced production lines for automated casting, rolling, and spring clip forming. From physical performance testing to salt spray corrosion testing, data is monitored in real time to ensure consistent quality.

Multi-Standard Compatible Manufacturing Capabilities

Due to our deep understanding of multiple international standards such as ASTM, DIN, BS, and JIS, Gnee Rails products are capable of operating in the global railway market. We regularly undergo inspections by internationally recognized testing organizations such as SGS, BV, and ABS to ensure that every order accurately meets local route requirements.

Three-Year Warranty Commitment

We promise to provide a three-year quality guarantee. If any non-human-caused manufacturing defects occur within the warranty period, we promise to complete the return or exchange within 60 days of receiving notification, completely eliminating any concerns for our customers.

Why Choose Gnee Rail Fasteners?

As a world-leading manufacturer of rail fastener systems, Gnee Rail Fasteners has 18 years of professional experience, an annual production capacity of 10 million sets, and its products are exported to more than 60 countries. We have built 5 production bases, equipped with 400 technicians, and annual R&D investment exceeds 5% of revenue.

Our products have been used in more than 2,000 railway projects, with a total of 50,000 kilometers of track laid, covering more than 100 high-speed rail projects. From -40℃ to 80℃, the product performance remains stable and reliable. With strict quality control and professional technical support, more than 85% of our customers maintain long-term cooperation with us, and customer satisfaction continues to remain above 93 points.

Professional packaging

  • Adopting 5-layer reinforced protective packaging system, moisture-proof performance reaches 99%
  • Each box load-bearing test reaches more than 1000kg
  • Unique shockproof lining can reduce 90% of transportation vibration
  • Each product is equipped with RFID smart traceability label, which can be traced 24 hours a day

Strict product testing and inspection

  • Possessing 8 international certifications including ISO9001
  • Testing equipment with an accuracy of 0.001mm
  • Fatigue testing with over 3 million cycles
  • Annual testing capacity with over 5 million sets of fasteners
  • All products are 100% non-destructively tested with X-rays

Rich successful cooperation cases

  • Established partnerships with railway companies in more than 60 countries
  • Annual average repeat order rate reaches 85%
  • Customer satisfaction survey score is more than 93 points
  • The longest partnership lasts more than 15 years

Adequate inventory guarantee

  • The standing inventory is maintained at more than 3 million sets.
  • 48-hour fast delivery service for spot goods.
  • The storage area is 20,000 square meters.
  • The inventory turnover rate is controlled at 45 days.
  • The ERP system monitors inventory in real time with an accuracy rate of 99.9%.

Wide range of global engineering applications

  • Products are used in more than 2,000 railway projects around the world
  • High-speed rail projects covering 35 countries
  • Cumulative track mileage exceeds 50,000 kilometers
  • Product service life is more than 18 years
  • 24/7 global technical support team, response time <2 hours

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