Black Finish 304 Stainless Flat Washers Kit, One Hundred Pieces in Five Sizes for Screws and Bolts, Eight and Ten, One Quarter Inch, Five Sixteenths Inch, and Three Eighths Inch, Heavy Duty Metal Washers for Home and Industrial Use

Premium 304 Stainless Flat Washer Kit, 100pc in 5 sizes
✔️ 100-piece set for screws and bolts with a durable black finish

This heavy-duty flat washer kit is crafted from premium 304 stainless steel with a black zinc finish. It’s designed to distribute load under bolt heads and nuts, protecting surfaces while delivering strong resistance to corrosion and wear in home and industrial setups.

✅ Material: 304 stainless steel with black zinc plating for corrosion resistance
✅ Five sizes included: 0.188" ID x 0.4375" OD (4.78 mm x 11.11 mm); 0.219" ID x 0.500" OD (5.56 mm x 12.70 mm); 0.250" ID x 0.625" OD (6.35 mm x 15.88 mm); 0.3125" ID x 0.6875" OD (7.94 mm x 17.46 mm); 0.375" ID x 0.8125" OD (9.53 mm x 20.64 mm)
✅ Heavy-duty design for vibration dampening and long-term durability
✅ Wide applicability: furniture repair, outdoor construction, mechanical maintenance

💡 What is a flat washer used for in fastener assemblies and how does stainless steel improve performance? - Load distribution across surfaces to protect underlying material - Reduces friction and wear during tightening - Provides corrosion resistance for outdoor use