We are offering here the Brass Washer of various types that is therefore defined as locks against unscrewing. It locks against unscrewing, with both higher and lower pretensioning. With narrow and wide contact surfaces. The washers are created from alloyed copper, which makes them a favorable choice for plumbing, heating and electronic applications. It may seem unimportant, but washers are an important part of any project. Not only do they act as a smooth barrier to reduce friction between two surfaces. It is used for ground bonding where a metal lug or object must be electrically bonded to a surface. The Brass Washer is very effective.