____High-quality materials A2 stainless steel washers 304 standard perfect with smooth surface and edge that are strong and durable excellent resistance to corrosion and rust offering a long service life suitable for long-term outdoor work ____Features Washer M6 50 pieces DIN 9021 ISO 7093 inner diameter 64 mm outer diameter (OD) 18 mm thickness 16 mm Practical function effectively disperses the pressure generated by the fasteners increasing the contact area parts can be protected against damage and prevent loose connections between fasteners Bolt washers are used to reduce friction prevent leaks insulate prevent loosening or pressure dispersion Wide application perfect for appliances and mechanics good fit for stainless steel bolts and nuts and stainless steel screws home repair machine tools furniture manufacturing DIY outdoor projects handcrafted products equipment etc ____Precision High-precision manufacturing to produce washers of the correct size that fit your fasteners well