Heavy Hex Slotted Nuts are internally threaded and hexagonal in shape nuts that have slots cut across the top for use with a cotter pin for locking purposes. Castellated nuts are used in low-torque applications, such as holding a wheel bearing in place. Regular Lock washers are washers that are http://claytonydztl.bluxeblog.com/16532199/5-dicas-sobre-emagrecedor-voc-pode-usar-hoje