A2-70 304 Stainless Steel Disc Spring Serrated Lock Washer Knurled Elastic Gasket Key benefits - Provides reliable preload and vibration resistance to help prevent loosening in dynamic assemblies. - Serrated lock washer bites into mating surfaces to lock bolts and nuts securely. - Knurled elastic gasket distributes load evenly and enhances grip for stable fits. What it is - A stainless steel fastening set comprising a disc spring, a serrated lock washer, and a knurled elastic gasket. - Designed to work together to maintain tension, reduce loosening, and improve sealing performance in fastened joints. Material and finish - Material: 304 stainless steel (A2-70 grade) - Corrosion resistant and suitable for general purpose use in environments requiring stainless steel components. Size and compatibility - Available sizes: M3, M4, M5, M6, M8, M10, M12, M16 - Compatible with bolt and nut assemblies in the corresponding metric sizes listed above. Use scenarios - Machinery and equipment subject to vibration or dynamic loads, where maintaining preload is critical. - Automotive or industrial assemblies where secure fastening and long-term stability are required. - Outdoor or marine applications where corrosion resistance and reliable locking are important. How it works - When installed, the disc spring provides consistent preload; the serrated lock washer and knurled gasket create a secure interface that resists loosening as loads change. After tightening, the groove edge and surface interaction help maintain a stable, resilient connection.