This is a top or bottom pivot bracket for Slimfold bi-fold doors. It fastens into the top or bottom track. Just position it in the track and tighten. It fits a 3/8 in. spring-loaded pivot pin. It is a stamped steel bracket with a screw that tightens it into the track.
May cause Cancer and/or Reproductive Harm - www.P65Warnings.ca.gov
