The Duraflex Anti-Rattle Lock Nut is 3/8 inch and made of aluminum. This item is sold individually. It is also included in SF-528. Two are required per Roller Block.
NOTE: Duraflex boards, stands and parts are NOT for residential use. Duraflex will not sell any boards, stands or parts to residential customers as residential pools are not designed to meet FINA (International Swimming Federation) guidelines.
