Anti-Lock Hex Head PV Anti-Vibration Mounting Bolts

Product features:

This anti-vibration PV bolt stands out for its ability to resist loosening in high-vibration solar installations. The self-locking nylon coating on the thread creates a permanent friction lock between the bolt and nut, preventing loosening due to wind vibration, thermal expansion, and seasonal temperature changes, reducing the need for routine maintenance checks. The 10.9 strength grade delivers a tensile strength of 1000 MPa, providing superior load-bearing capacity for heavy-duty solar racking systems. The flange hex head design integrates a built-in washer, distributing tightening force evenly across the mounting surface and reducing the risk of surface damage to racking components. The black oxide surface treatment provides basic corrosion resistance, while the nylon coating adds an extra layer of protection against moisture and dust. The hex socket drive design allows for precise tightening with standard socket wrenches, ensuring consistent torque application across all installation points.

Product specifications:

This anti-lock PV mounting bolt has precise specifications tailored for high-vibration solar applications. The diameter range covers M8 to M16, with available lengths from 40mm to 180mm to fit thick racking components and deep foundation installations. The flange hex head has a standard width across flats matching corresponding socket wrench sizes, ensuring a proper tool fit during installation. The self-locking metric thread has a nylon coating that fills the thread gap, creating a tight seal that resists loosening. The hardness ranges from HRC 35 to 40, balancing high strength and toughness to withstand repeated vibration and torque stresses. Each bolt is inspected for thread quality, coating integrity, and torque performance, with batches tested to meet the 300-hour salt spray standard. The bolts are packaged in plastic trays to prevent damage to the nylon coating during transportation and storage.

Product application:

This anti-vibration PV bolt is ideal for solar installations in high-vibration environments, including wind turbine-mounted solar systems, rooftop solar systems with heavy foot traffic, and large-scale ground-mounted rack systems exposed to strong winds. It can be used to secure solar panel racks, cross beams, and rail components to concrete, steel, and wooden foundations, ensuring stable fixation even under repeated wind loads and thermal expansion. The bolt is suitable for solar arrays with capacities ranging from 50kW up to multi-megawatt scale projects, providing a reliable fastening solution that reduces the need for routine tightening and maintenance. It is compatible with most standard PV mounting hardware, including aluminum alloy and steel racking systems. This bolt is not recommended for extreme high-salt coastal environments, where stainless steel bolts may be more suitable for long-term corrosion resistance.