Product: 304 (A2-70) stainless steel nut with integrated groove edge and GB93 spring washer Key benefits - Secure locking: the nut’s grooved edge engages the mating surface when fully tightened, reducing the risk of loosening under vibration or dynamic load. - Anti-loosening spring action: supplied with a GB93 spring washer to maintain tension and resist back-off over time. - Corrosion resistance and strength: made from 304 (A2-70) stainless steel for reliable performance in indoor and outdoor environments while meeting common mechanical strength expectations for A2-70 material. - Wide compatibility: available in metric sizes M1.6 through M30 to fit a broad range of bolts and assemblies. What it does for you - Prevents fastener loosening in vibrating or moving assemblies by combining a grooved engaging surface with a spring washer. - Simplifies installation by providing a ready pairing of nut and GB93 spring washer for consistent clamping force. - Extends service life in corrosive or damp environments thanks to 304 stainless steel. Key specifications - Material: 304 stainless steel (A2-70) - Locking feature: grooved edge on the nut that engages the mating surface when fully tightened - Washer: GB93 spring washer included - Size range: M1.6 – M30 (metric) Performance notes - Best used on properly prepared mating surfaces; the grooved edge is designed to bite into the contact surface to enhance locking. - The GB93 spring washer maintains axial tension and helps absorb small dynamic changes, improving retention under vibration. Typical applications - Machinery and equipment assemblies subject to vibration, such as motors, pumps, and conveyor systems - Outdoor fixtures and structural fastenings where corrosion resistance is required - Automotive maintenance and repair tasks that require metric fasteners with anti-loosening features Compatibility and installation tips - Select the correct metric size (M1.6–M30) to match bolt thread and pitch. - Tighten to appropriate torque for A2-70 hardware and the application; the grooved edge and spring washer are locking aids, not substitutes for correct torque. - Inspect mating surface for compatibility; softer materials may show indentation from the grooved edge as it engages for locking. Packaging and ordering - Available per size in the M1.6–M30 range. Specify required size when ordering.