Closing the perimeter does not always finish the inspection. Unused hardware preps, thru-holes, and a latch that no longer reaches the strike fail the same way a wide head gap does -- leftover cavities and a miss-hit latch are still an open path.
HP90 fillers close mortise, flush-bolt, cylindrical, and round thru-hole cavities. GapGuard Fire Caulk seals those holes and is required with wood-door GAP90-ME and HP90-MORT / FB / CYL to retain the listing. After a stop extender goes on, 9275 (4-7/8 inch ASA) or 9225 (2-3/4 inch T) strike shims restore latchbolt engagement. HS-1 steel hinge shims, FDTB 3/8 inch fire-door thru-bolts, and 9945EC / 9945NEC end caps finish the steel stop.
Recently Viewed Items
Your Dynamic Snippet will be displayed here... This message is displayed because you did not provided both a filter and a template to use.