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Help CenterNylon Sleeve for Screw Spike Fastening System, Used in Railway Track Fixing, 30mm Length
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Anping County Boli Hardware Wiremesh Products Factory has been a trusted manufacturer of railway fastening components since 1998. Our Nylon Sleeve for Screw Spike Fastening System is specifically designed for railway track fixing, providing reliable insulation and secure positioning of screw spikes. With a precise length of 30mm, this sleeve ensures consistent performance in demanding rail environments. Manufactured from high-grade nylon, it offers excellent wear resistance, electrical insulation, and long service life.
Each sleeve undergoes strict quality control to meet the requirements of modern railway infrastructure. Our factory's annual export value of US$5–10 million reflects our commitment to supplying global markets with dependable components. Whether used in mainline tracks, switches, or crossings, this nylon sleeve enhances the overall stability of the fastening system.
Key Features & Technical Specifications
- Material: Premium nylon (PA6 or PA66) with UV stabilizer – resists cracking, moisture, and chemical corrosion.
- Length: 30mm ±0.5mm – ensures precise fit for standard screw spikes.
- Inner Diameter: Designed to match common spike diameters (e.g., 20mm – 25mm, customizable).
- Outer Diameter: Optimized for rail base plate holes – provides snug fit without looseness.
- Color Options: Black (standard), yellow (high visibility), or custom colors for easy identification.
- Temperature Range: -40°C to +80°C, suitable for diverse climates.
- Insulation Performance: Electrical resistance >10^12 ohms – prevents galvanic corrosion between steel spike and rail.
- Load Capacity: Withstands axial and lateral forces during train passage.
| Parameter | Value |
| Material | Nylon 6 / Nylon 66 |
| Length | 30 mm |
| Wall Thickness | 3 mm – 5 mm (customizable) |
| Tensile Strength | ≥ 60 MPa |
| Elongation at Break | 20% – 40% |
| Operating Temperature | -40°C to +80°C |
| Color | Black, Yellow, or Custom |
Advantages for Your Rail System
- Enhanced Safety: Nylon sleeve electrically isolates the screw spike from the rail, reducing stray current interference and corrosion.
- Easy Installation: Pre-formed sleeve slides over the spike – no special tools required.
- Reduced Maintenance: Resistant to vibration loosening; durable under heavy traffic.
- Cost-Effective: Extends the life of spikes and base plates, lowering replacement frequency.
- Eco-Friendly: Nylon material is recyclable and RoHS-compliant.
Our factory in Hengshui, Hebei, has been serving global railway projects for over 25 years. With annual exports of US$5–10 million, we ship to North America, South America, Europe, Southeast Asia, Africa, Oceania, and the Middle East. We offer flexible shipping from Tianjin, Qingdao, Shanghai, and Foshan ports. Each batch is tested for dimensional accuracy, material hardness, and insulation performance.
We are committed to providing customized solutions – whether you need a different length, color, or specific material grade, we can accommodate your requirements. Contact us today for a quotation or sample testing. Let our expertise support your railway infrastructure.
Frequently Asked Questions
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Q: What is the main function of this nylon sleeve?
A: It insulates the screw spike from the rail, prevents galvanic corrosion, and maintains the correct positioning of the spike in the fastening system. -
Q: Can the sleeve be used with any screw spike size?
A: Our standard 30mm length fits most common spikes. The inner diameter can be customized from 20mm to 25mm to match your specific spike dimensions. -
Q: Is the material UV resistant?
A: Yes, we add UV stabilizers to the nylon to ensure long-term performance under direct sunlight exposure. -
Q: How long does the sleeve last in typical railway conditions?
A: Under normal heavy-haul traffic, the expected service life is 5–10 years, depending on climate and maintenance. -
Q: Do you provide samples before bulk order?
A: Absolutely. We offer free samples (shipping cost may apply) for quality evaluation. Custom samples can be made with a small lead time. -
Q: What certifications do you have?
A: We can provide factory test reports and material certificates. For specific international certifications, please inquire – we can arrange third-party inspection upon request. -
Q: What is the minimum order quantity?
A: Our MOQ is 10,000 pieces for standard items. For custom sizes, MOQ may vary. Please contact our sales team for details. -
Q: How do you ensure consistent quality?
A: We have in-house testing for dimensional accuracy, tensile strength, and insulation resistance. Random sampling during production and final inspection before shipment.
Choose Anping Boli – your reliable partner for railway fastening solutions. With decades of experience and a global footprint, we deliver products that meet your track standards. Request a quote now!
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