These 5/16" flat washers are made from high-quality stainless steel, ensuring durability and resistance to corrosion. Ideal for various applications, these washers provide a reliable surface for load distribution. Each box contains 2500 washers, making it perfect for large projects or industrial use. The washers meet industry standards for quality and performance, ensuring compatibility with a wide range of fasteners and hardware. Dimensions are precise to fit standard 5/16" bolts, making them a versatile choice for both professional and DIY applications.