Name: China Railway System Fastening Screw Spike Manufacturers Suppliers Factory - Free Sample - GNEE RAIL
Brand: GNEE
SKU: 286807033

Railway System Fastening Screw Spike

The screw spike is also known as rail screw. As one kind of Rail spike, it is a metal screw for fixing rail fasteners. Screw spike is usually made of NO.3 steel. Because its nail rod surface has thread, so it is called screw spike. The pull-out resistance is 0.5 ~ 1.0 times larger than that of common rail spike, but the thrust resistance is 50% less. Due to disassembly and assembly inconvenience, it is difficult to adjust the rail gauge, which is generally used on the railway turnout.For meeting various needs of clients, we can offer coach screws, stud screw, railway sleeper screws and other coustom screw spike in railway.

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Description

Technical Parameters

Rail Screw spike Fastening System

A threaded mechanical fastener engineered for high-tension rail-to-sleeper connections, providing exceptional pull-out resistance and vibration stability through torque-controlled installation. Designed for permanent and semi-permanent track systems requiring precision fastening.

Technical Specifications:

Parameter	Torque-Grade T-Series	Anchor-Grade A-Series	Insulated I-Series
Thread Specification	ISO 898-1 M24×180 (8.8)	DIN 933 M30×220 (10.9)	M24×180 with PA66 Sleeve
Drive Geometry	Hex Socket DIN 6912	External Hex DIN 931	Hex Socket with Insulator
Shank Design	Full Thread + Pilot Point	Partial Thread + Anchor Groove	Full Thread + Dielectric Layer
Material Grade	40Cr Alloy Steel	42CrMo4 High-Tensile	304 Stainless Steel Core
Surface Engineering	Mechanical Zinc Plating	Hot-Dip Galvanized + Passivate	Electropolished + PTFE Impregnated
Torque Yield Ratio	0.85 ±0.05	0.90 ±0.03	0.80 ±0.05
Unit Mass	0.62 kg	1.15 kg	0.71 kg

Key Features:

Torque-Preload Precision: Calibrated thread pitch ensures accurate clamping force translation

Anti-Vibration Topology: Engineered thread profile with locking microstructure

Condition-Adaptive Coatings: Multi-layer surface systems for specific environmental challenges

Installation Intelligence: Color-coded torque indicators and laser-etched calibration marks

Sleeper Compatibility: Optimized for concrete, composite, and steel sleeper substrates

Lifecycle Traceability: QR-coded head marking for digital maintenance records

Applications:

Prestressed concrete sleeper mainlines
Heavy-haul mining track permanent installations
Expansion joint and bridge deck fixations
Electrified corridor isolation sections
Elevated track vibration-sensitive zones
Retrofit reinforcement of existing fastening systems

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