Square Beveled Washer - Fastener Warehouse Beveled square washers create a more stable surface, they keep the thrust faces parallel, preventing bolted joints from shifting. 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.Specification :Material: 304 Stainless... Buy it with This item: PATIKIL 4pcs M8 Beveled Square Washers, 8x18mm Missing Angle Square Beveled Washers Bearing Strut Plate Flat Spacer 304 Stainless Steel for Bolts Wedge Shim Leveling Fastener Nut Gasket $999 5/16-18 x 1-1/2 (1/2 to 4-1/2 Available) Hex Head Screw Bolt, Fully Threaded, Stainless Steel 18-8, Plain Finish, Quantity 20 $1499($0.75/count) $2207($0.22/count) Total price... Material: 304 Stainless Steel; Size: 8x18 mm / 0., 31x0., 71 inch ( Inner diameter x width ); Thickness: 2mm; Height:3., 6 mm / 0., 14 inch Applicable for M6 bolts. They have excellent heat and low temperature strength, good oxidation resistance, durable, not easy to break or deform, suitable for indoor and outdoor use. Instruction :The beveled edge of the washers is designed to wedge and level uneven surfaces, making them suitable for shim leveling and adjustment. Square Flat Spacers For Bolts PATIKIL Beveled Square Washers, Carbon Steel Spacer For Bolt M8 Washers Square washers provide a larger contact area for fasteners, provide higher load-bearing capacity and higher stability, can reduce friction and prevent loosening.