8BA Flat Washers - Steel BA Flat washers are used to distribute the force of the fastener more evenly across the fastened surface by increasing its surface area. The increased contact with the fastened surface not only creates a more secure fastening, it also reduces surface pressure, preventing the bearing surface from sinking. Flat Washers can also be used as Spacers due to them being flat on both sides. BA, or British Association Thread, was introduced in 1884 and is gradually being phased out in favour of metric fasteners, but is still widely used in various sectors around the UK. These BA Flat Washers are made from Self Colour Steel. For larger quantities or items not listed, please email and one of our team will provide you with a quotation. 8BA Flat Washers - Steel