This Bi-Fold Door bottom pivot by Prime-Line Products is constructed of both steel and plastic components. The steel bolt comes in a corrosion-resistant, zinc-plated finish. This bi-fold door pivot features a bottom mount design with a hex head bolt for quick vertical adjustment, and it fits on 1-inch to 1-3/8 in. thick bi-fold doors, whose weight does not exceed up to 30lbs. each. Installation of these pivots requires only a 3/8 in. diameter hole beneath the vertical stile of the bi-fold door.
David. US. Sun May 11 2025