Form B brass flat washers manufactured to BS 4320 standards are designed to provide dependable load distribution and joint protection in professional and industrial fastening applications. Produced from high-quality brass, these washers offer excellent resistance to corrosion and oxidation, making them suitable for use in damp environments, electrical installations and applications where steel washers may not be appropriate. The Form B washer profile features a larger outer diameter than standard Form A washers, increasing the bearing surface beneath bolt heads and nuts to help spread clamping force more evenly. This reduces stress on fasteners and mating materials, improving joint stability and reducing the risk of surface damage. Brass construction also provides non-magnetic properties and good electrical conductivity, making these washers suitable for specialist engineering and electrical applications. Commonly used in construction, industrial machinery, automotive assemblies and precision engineering, Form B brass flat washers deliver durability, consistent performance and long service life where corrosion resistance and secure fastening are essential.