PLASTIC LATCH DUST BOX / MORTICE POCKET Material: durable plastic moulded box. Function: fits into the mortice cavity behind the strike plate. Purpose: hides the door frame mortice cavity and prevents dust/debris build-up in the latch pocket. Position: sits behind the strike plate, screwed in alongside the latch keep. LATCH DUST BOX DIMENSIONS Sized to fit standard UK mortice latch pockets behind tubular mortice latch strike plates. Fitting: inserts into the door frame mortice cavity before the strike plate is screwed on. Pack of 2: two dust boxes per pack — enough for two doors or one with a spare. PACK OF 2 – TWO LATCH DUST BOXES Pack contents: 2 plastic latch dust boxes. Use case: typically one box per door — pack of 2 covers two doors or provides a spare for replacement. Note: this is the dust box only — strike plate sold separately. WHY USE A DUST BOX BEHIND THE STRIKE PLATE Purpose: when a mortice latch is fitted, the door frame is cut with a deeper pocket than the latch bolt actually needs. Without a dust box, this pocket fills with dust, sawdust from installation, paint flakes, and debris over time. Benefit: a dust box keeps the latch pocket clean, looks tidier from behind the plate, and prevents the cavity becoming a debris trap. STANDARD UK MORTICE LATCH DUST BOX Compatible: standard UK tubular mortice latch pockets behind 75mm, 114mm, and similar strike plates. Pairs with: our 75mm and 114mm strike plates across all finishes (Satin Chrome, Polished Chrome, Polished Brass, Satin Stainless Steel). Browse our store: matching strike plates, tubular mortice latches, lever handles, and complete door hardware sets., Weight: 0.110231131 pounds, Manufacturer: Fasteners Store