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As a leading manufacturer in China specializes in the wholesale production of railway sleeper screws (also known as rail screw spikes or lag bolts) for wooden and concrete sleepers. Kunshan Signum supplies products meeting international standards such as AREMA, UIC, DIN, BS, and ISO.
Railway sleeper screws are threaded fasteners designed to secure the rail fastening assembly — including rail clips, baseplates, and dowels — to concrete, wooden, or composite sleepers. Unlike traditional cut spikes, sleeper screws rely on their threaded engagement with plastic inserts or dowels embedded in the sleeper to achieve a tight, vibration‑resistant hold.
Types of Sleeper Screws Available
Types of Sleeper Screws Available
For Wood Sleepers: Screw spikes, lag bolts, often used with plastic dowels.
For Concrete Sleepers: Specific fasteners like cruciform screws or bolts designed for concrete installation.
Key Technical Specifications
Key Technical Specifications
Materials: Usually low carbon steel (Grades 4.6, 5.6) or high-strength steel (Grade 8.8, 10.9).
Coating/Finishing: Black oxide, zinc plating, hot-dip galvanizing (H.D.G.), and Sherardizing for corrosion resistance.
Common Sizes: Standard lengths include 14mm to 27mm diameters with lengths varying from 120mm up to 200mm+ depending on the sleeper type.
Pricing: Wholesale prices generally range from $0.40 to $1.50 per piece depending on the material grade and quantity.
Partner with Us for Railway Sleeper Screws
Partner with Us for Railway Sleeper Screws
Whether you’re planning new track construction, upgrading existing infrastructure, or managing ongoing maintenance, our railway sleeper screws provide a reliable, durable, and cost‑effective solution.
Contact us today for:
Contact us today for:
Product specifications
Competitive wholesale pricing
Samples and technical support
OEM/ODM customization
Signum — China Manufacturer & Wholesale Supplier of Railway Sleeper Screws
Signum — China Manufacturer & Wholesale Supplier of Railway Sleeper Screws
Direct Line:+86 512 50353196
Whatsapp:+86 158 6266 4803
Email: admin@rail-fastening.com
Web: www.rail-fastening.com
Address: 120 Tongjing Road, Lujia Town, Kunshan, Jiangsu 215331, China
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