Sirius A4 316 Stainless Steel Spring Washers

The Sirius A4 316 Stainless Steel Spring Washer in M20 is a large, heavy-duty size designed for substantial structural and industrial bolted connections. The M20 size is commonly found in large-scale fabrication, civil engineering structures, heavy plant equipment, and marine infrastructure, where high-strength fasteners require equally robust spring washers to maintain joint integrity. Fabricated from A4 grade 316 stainless steel, this washer delivers exceptional resistance to corrosion, saltwater, and aggressive chemicals, making it a dependable choice for offshore, coastal, and chemical plant environments. The split-ring spring action provides strong, consistent clamping force that resists loosening even under heavy vibration, shock loading, and thermal cycling. Features and Benefits: • A4 grade 316 stainless steel for maximum corrosion and chemical resistance • Large heavy-duty size for high-load structural and industrial applications • Delivers strong spring force to secure large-diameter fasteners • Ideal for offshore, marine, and chemical processing environments • Compatible with M20 stainless steel bolts and nuts • Conforms to DIN 127 standard spring washer profile