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Help CenterScrew Spike Fastening Nylon Sleeve, for Steel Structure and Bridge Application, 25mm ID
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Anping County Boli Hardware Wiremesh Products Factory, with over 25 years of manufacturing excellence since 1998, is proud to present our Screw Spike Fastening Nylon Sleeve – a precision-engineered solution designed specifically for steel structure and bridge applications. Featuring a 25mm inner diameter (ID), this nylon sleeve offers reliable insulation, anti-corrosion protection, and secure fastening for screw spikes in demanding environments. Our factory, located in Hengshui, Hebei (China), has an annual export value of US$5-10 million, serving global markets across North America, Europe, Asia, and beyond. This product is the result of rigorous quality control and decades of industrial experience, ensuring that your infrastructure projects benefit from dependable performance.
The nylon sleeve acts as a protective barrier between the screw spike and the surrounding steel or concrete, preventing galvanic corrosion, reducing vibration, and extending the service life of the fastening system. Whether used in bridges, industrial steel frames, or heavy-duty structures, this sleeve provides a cost-effective and durable solution. Below are the detailed features and specifications that make our product stand out.
Key Features & Technical Specifications
- Material: High-grade nylon (PA6 or PA66 optional) – excellent impact resistance, UV stability, and chemical resistance.
- Inner Diameter: 25mm (customizable sizes available upon request)
- Outer Diameter: Typically 30-35mm depending on wall thickness (configurable)
- Length: Standard lengths from 50mm to 200mm; other lengths can be produced per customer specifications.
- Color: Black as standard; other colors (yellow, red, etc.) available for custom orders.
- Working Temperature: -40°C to +80°C (continuous), with peak tolerance up to 120°C for short periods.
- Surface Finish: Smooth interior for easy insertion of screw spikes; ribs or grooves optional for enhanced grip.
- Packaging: Bulk in cartons (100-500 pcs per carton) or palletized for export; custom packaging (shrink wrap, labeled bags) available.
| Specification | Standard Value | Notes |
|---|---|---|
| Inner Diameter (ID) | 25mm (±0.5mm) | Custom ID available |
| Wall Thickness | 2.5mm – 5mm | Depends on application |
| Tensile Strength | ≥ 50 MPa | Nylon PA6 |
| Elongation at Break | ≥ 30% | Flexible yet durable |
| Service Life | 10+ years in typical outdoor conditions | Dependent on environment |
Advantages & Customer Benefits
- Anti-Corrosion Protection: The nylon sleeve isolates the metal screw spike from the steel structure, preventing galvanic corrosion – a common issue in bridge and outdoor steel frameworks.
- Vibration Damping: Nylon's inherent elasticity absorbs mechanical vibrations, reducing loosening of fasteners over time and improving structural integrity.
- Electrical Insulation: Provides dielectric insulation between the spike and the structure, useful in applications where electrical isolation is required.
- Easy Installation: Smooth inner surface allows quick insertion of screw spikes; no special tools required. Sleeves can be cut to desired length on-site.
- Weather Resistance: UV-stabilized nylon resists degradation from sunlight, moisture, and temperature extremes, ensuring long-term reliability in harsh climates.
- Cost-Effective: Compared to rubber or metal sleeves, nylon offers a balance of performance and affordability, reducing overall project costs.
- Customizable: We can produce sleeves in different diameters, lengths, colors, and even with special additives (e.g., flame retardant) to meet specific project requirements.
Frequently Asked Questions (FAQ)
-
Q: What is the typical outer diameter of the 25mm ID sleeve?
A: The outer diameter depends on the wall thickness you choose. Standard wall thicknesses range from 2.5mm to 5mm, so the OD would be between 30mm and 35mm. We can customize it to your needs. -
Q: Can this sleeve be used with different screw spike types (e.g., hexagonal, round)?
A: Yes, the sleeve is designed to accommodate standard screw spikes with a 25mm shank diameter. For spikes with a different shape, we recommend checking the fit; custom inner diameters are available. -
Q: Is the nylon material food-grade or suitable for potable water applications?
A: Our standard nylon is not food-grade. However, we can produce sleeves using FDA-approved nylon grades upon request. Please contact us for specific requirements. -
Q: What is the minimum order quantity (MOQ)?
A: For standard sizes, MOQ is typically 1000 pieces. For custom sizes or colors, MOQ may be higher. We can discuss based on your project volume. -
Q: How do you ensure quality control?
A: We have a dedicated QC team that inspects raw materials, at-die sampling, and final product dimensions and appearance. Every batch is tested for dimensional accuracy and tensile strength before shipment. -
Q: Can you provide samples?
A: Yes, we offer free samples for standard sizes (shipping cost borne by customer). Custom samples may require a small fee, which is refundable upon bulk order. -
Q: What is the lead time for this product?
A: For standard 25mm ID sleeves, lead time is 7-15 days after order confirmation. For custom orders, it may be 15-30 days depending on complexity. -
Q: Do you offer any warranty?
A: We provide a 12-month warranty against manufacturing defects. Our long-standing reputation in the industry is built on reliability and customer satisfaction.
Why Choose Anping County Boli Hardware Wiremesh Products Factory?
With a history dating back to 1998, our factory has grown into a reliable manufacturer with an annual export value of US$5-10 million. We ship from major Chinese ports including Tianjin, Qingdao, Shanghai, and Foshan, ensuring timely delivery to global markets. Our products are trusted by clients across North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, and beyond. We understand the critical nature of fastening components in steel structures and bridges, and we are committed to delivering consistent quality, competitive pricing, and responsive customer service.
Whether you need a standard 25mm ID nylon sleeve or a custom solution, our team is ready to assist. We invite you to contact us for a quote or to discuss your project requirements. Let our expertise add value to your next infrastructure project.
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