Rust-proof Washers PATIKIL 15pcs Beveled Square Washers, M18x40mm Square Beveled Washers 18mm Bolt Square Washer 304 Stainless steel square flat washers are commonly used in mechanical equipment and industrial equipment, wood structures, decoration, electrical, automotive industrial applications, construction, pipelines, etc. Material: 304 Stainless Steel; Size: 8x18 mm / 0.31x0.71 inch ( Inner diameter x width ); Thickness: 2mm; Height:3.6 mm / 0.14 inch; Advantages Beveled square washers create a more stable surface, they keep the thrust faces parallel, preventing bolted joints from shifting. They have excellent heat and low temperature strength, good oxidation resistance, durable, not easy to break or deform, suitable for indoor and outdoor use. Square flat washers are commonly used in mechanical equipment and industrial equipment, wood structures, decoration, electrical, automotive industrial applications, construction, pipelines, etc. Square washers provide a larger contact area for fasteners, provide higher load-bearing capacity and higher stability, can reduce friction and prevent loosening. Item details · Material: 304 Stainless Steel · Rust-proof and corrosion-resistant · Prevent loosening effectively · Used in mechanical and industrial applications... M6x30x2mm Square Washers, 36pcs Square Plate Washers Square Strut Washer Bearing Plate 304 Stainless Steel Flat Pad Spacer Hardware Fastener Nut Bolt Instruction :The beveled edge of the washers is designed to wedge and level uneven surfaces, making them suitable for shim leveling and adjustment.