Product Description
A Seismic Anti-Loosening Nut is a high-reliability fastener accessory designed to prevent bolt loosening under dynamic loads such as earthquakes, vibrations, and thermal expansion. Manufactured with 45# steel quenched and tempered (hardness HRC 28-32), this product features a double-nut locking structure with built-in anti-loosening threads, ensuring tight engagement with bolt threads and achieving an anti-loosening grade of ISO 16130 Class 4.
One of the key features of this nut is its superior anti-loosening performance—after 100 million times of vibration testing, it remains locked without any loosening, outperforming traditional nuts by 5-8 times in anti-vibration capability. It is compatible with 8.8/10.9 grade high-strength bolts (M8-M36), making it suitable for seismic-resistant structures and vibration-prone equipment, such as bridges, wind turbine towers, industrial cranes, and high-speed rail track fasteners.
For enhanced usability, the nut can be installed with ordinary tools (wrenches) without special equipment, and it is reusable without losing anti-loosening performance, reducing maintenance costs. The surface is treated with galvanizing + passivation or black oxide coating, providing good corrosion resistance and adapting to indoor and outdoor environments.
With its compact design and easy installation, this anti-loosening nut is an essential accessory for improving structural safety and reliability. Whether it's for seismic reinforcement of existing buildings, fixing vibration-prone industrial equipment, or installing critical infrastructure (e.g., power transmission towers), this product provides a cost-effective and long-lasting anti-loosening solution.
Customers can receive professional technical support, including compatibility testing with bolts and anti-loosening performance verification, ensuring optimal matching with project requirements.
Applications
Seismic Anti-Loosening Nuts are critical fastener accessories for dynamic load and seismic-resistant projects. Certified by ISO 9001 and SGS vibration test reports, they ensure compliance with international anti-loosening standards, making them a trusted choice for high-safety requirements.
These nuts are widely used in bridges (beam-column connections, guardrail fixing), wind turbine towers (flange connections, equipment fixing), industrial cranes (runway rail fixing, jib connections), high-speed rail track fasteners, seismic-resistant buildings (hospital, school frame connections), and vibration-prone equipment (pumps, motors, generators). Their ability to resist loosening under extreme vibrations and earthquakes makes them essential for critical infrastructure.
The minimum order quantity is 100 pieces for standard specifications (M8-M36), and customized options are available for bolt size compatibility (M39-M48) and surface treatment (stainless steel 316L) to meet special project needs. Competitive pricing and bulk purchase discounts (for orders over 1000 pieces) enhance cost-effectiveness, while the short delivery time (2-5 workdays for standard orders) supports urgent maintenance and construction projects.
With a monthly supply capacity of 5,000,000 pieces, the manufacturer ensures timely delivery even for large-scale infrastructure projects. The 45# steel quenched and tempered material and anti-corrosion surface treatment ensure long-term durability in various environments, from urban bridges to coastal wind farms.
Customization options also include high-temperature resistant designs (up to 300℃) for industrial furnace equipment and low-temperature resistant designs (down to -40℃) for cold-region projects. Whether it's for new construction or old structure anti-loosening reinforcement, the Seismic Anti-Loosening Nut delivers reliable and long-lasting performance.
Twoja wiadomość musi mieć od 20 do 3000 znaków!
