Step 7: Install the latch assembly

Norm Abram installing the latch assembly and knob of a lockset
Photo: David Carmack
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Reinsert the latch assembly and mark the latch plate's screw holes inside the mortise. Remove the assembly.

Drill pilot holes for the plate's two screws with a 3/32-inch bit, then reinsert the assembly and screw it in place.

Slide the outside knob with the spindle through the face bore and latch assembly. Then fit the inside knob over the spindle.

Hand-thread the mounting screws. Tighten them firmly with a screwdriver.

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    Tools List

    • drill
      Electric drill or cordless drill-driver
    • spade bit
      7/8-inch spade bit
    • keyhole saw
      2 1/8-inch hole saw
    • 3/16 masonry bit
      3/32-inch drill bit
    • Phillips screwdriver
      Phillips-head screwdriver
    • 16-foot tape measure
      Tape measure
    • chisel
      1-inch chisel
    • utility knife
      Utility knife
    • hammer
      Hammer
    • combination square
      Combination square
    • Awl

    Shopping List

    1. RADIUS-CORNERED LATCH PLATE

    for factory-mortised doors



    2. LATCH ASSEMBLY WITH SQUARE-CORNERED LATCH PLATE

    3. CARDBOARD TEMPLATE

    included with lockset



    4. RADIUS-CORNERED STRIKE PLATE

    for factory-mortised jambs



    5. SQUARE-CORNERED STRIKE PLATE

    6. DOORKNOBS

    7. WOOD SHIMS