High Quality Ss36 Screw Spikes

Additional information

Size

24×L, L=150mm to 270mm

Grade

4.6, 4.8, 5.6, 5.8, 6.8, 8.8, 10.9, 12.9, etc.

Material

Q235, 35#, 45#, 40Cr, 20MnTiB, 35CrMo, 42CrMo, etc.

Surface Treatment

natural oiling, blackening, hot-dip galvanizing, electro-galvanizing, Dacromet, etc.

Packaging Details

200LB barrels and wooden pallets or as per customer requirements

Specifications Of Ss36 Screw Spikes

Ss36 screw spikes in railway have different models, suitable for different special adjustment amounts of rail height:

Model	Applicable Range of Special Adjustment Amount for Rail Height (mm)	Length (mm)	Thread Specification
Ss36 – 260	+29～+38	260	Common triangular thread
Ss36 – 270	+39～+48	270
Ss36 – 280	+49～+56	280

Product Description

Gnee’s Ss36 screw spikes are widely used in various railway track systems, including high-speed railways, ordinary railways, urban rail transit (such as subways, light rails), etc. In high-speed railway lines, Ss36 screw spikes are used as part of the W300-1 fastener system to connect rails and sleepers, adjust the height and left and right positions of the rails, and ensure that the geometric dimensions of the track meet the requirements of high-speed train operation.

Gnee Rails produces and sells a variety of threaded spikes for wooden or concrete sleepers. Product specifications include: Ss1, Ss2, Ss5, Ss6, Ss7, Ss8, Ss16, Ss17, Ss23, Ss24, Ss25, Ss27, Ss28, Ss35, Ss36, Ss76, as well as 3V threaded spikes V20, V23, V26 and various trapezoidal tooth bolts. We attach great importance to the quality control and management of the production of threaded spikes. The production process strictly follows the ISO9001-2015 quality system and obtains the railway product production license. We have a series of testing equipment to ensure the quality of all our screw spike products to meet customer requirements.

Production process of Ss36 screw spikes

Material selection
According to the performance requirements and usage scenarios of spiral spikes, suitable materials are selected. Various steels such as Q235, 35#, 45# can be used for Ss36 spiral spikes. These materials have their own strength, toughness and corrosion resistance.
Forming processing
The steel is processed into blanks by forging or rolling. Forging can make the internal structure of steel more dense, improve strength and toughness; rolling helps to improve production efficiency and material utilization.
Machining
Through cutting, turning, milling, drilling and other machining processes, the blanks are accurately processed into spiral spikes that meet the size requirements. During the processing, the precision must be strictly controlled to ensure that the dimensional tolerance and surface quality meet the standards.
Heat treatment
According to the material and performance requirements, the road spikes are subjected to heat treatment such as quenching and tempering. This can effectively improve the hardness, strength and wear resistance of the road spikes, and the heat treatment parameters will be adjusted according to the specific material and product requirements.
Surface treatment
In order to enhance the corrosion resistance and appearance quality, the road spikes will be surface treated, including natural oiling, blackening, hot-dip galvanizing, electrogalvanizing, Dacromet, etc., so that a protective film is formed on the surface of the road spikes to resist external corrosion.
Quality inspection
There are strict quality inspection links throughout the production process, involving appearance, dimensional accuracy, hardness, flaw detection and other aspects of inspection. Only qualified products can enter the market.

Additional information

Size	24×L, L=150mm to 270mm
Grade	4.6, 4.8, 5.6, 5.8, 6.8, 8.8, 10.9, 12.9, etc.
Material	Q235, 35#, 45#, 40Cr, 20MnTiB, 35CrMo, 42CrMo, etc.
Surface Treatment	natural oiling, blackening, hot-dip galvanizing, electro-galvanizing, Dacromet, etc.
Packaging Details	200LB barrels and wooden pallets or as per customer requirements

Quality Control Of Gnee Ss36 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.