M3M4 304 stainless steel double-stack self-locking anti-loosening gasket 65 manganese occlusion toothed anti-skid locking screw gasket for Machinery & Equipment

Our 304 Stainless Steel Double-Stack Self-Locking Anti-Loosening Gaskets (M3-M4) are professional, high-performance fastener accessories engineered to provide secure, anti-slip locking for screws in industrial, machinery, and equipment applications. Crafted with a dual-layer design—304 stainless steel for durability and corrosion resistance, paired with 65 manganese occlusion toothed construction for enhanced anti-skid performance—these gaskets deliver reliable anti-loosening protection even in high-vibration environments.

 

Designed specifically for M3 and M4 screws, these double-stack self-locking gaskets feature precision-machined 65 manganese toothed surfaces that occlusion tightly with screw threads and contact surfaces, creating a strong friction barrier that prevents loosening caused by vibration, load, or frequent use. The 304 stainless steel base ensures exceptional resistance to rust, corrosion, and wear, making these gaskets suitable for both indoor and semi-outdoor industrial settings, as well as machinery that requires long-term reliability.

 

The double-stack structure enhances load-bearing capacity and locking stability, while the toothed anti-skid design eliminates slippage between the gasket and fastener, ensuring a tight, secure fit that maintains integrity over time. These gaskets are easy to install—simply place between the screw head and the fastened surface, and the toothed occlusion automatically locks into place during tightening, requiring no additional tools or complex procedures.

 

Versatile and practical, these M3-M4 self-locking anti-loosening gaskets are ideal for use in industrial machinery, electrical equipment, precision instruments, automotive components, and any application where screw loosening could lead to equipment failure or safety risks. Whether you’re a professional industrial buyer, machinery maintenance technician, or equipment manufacturer, these gaskets deliver the durability, anti-loosening performance, and precision needed to keep your fasteners secure.