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Hardware & Tools

Concealed Door Latch

Part Number: TP 236

$17.50 each

In-Stock.Ships via UPS/Fedex

Concealed door latch inside. Mechanism for plastic laminate.

TechNotes

Enlargement

Material: Unplated Zamak (pot metal)
Brand: Knickerbocker
Material it's used on: Plastic laminate

This four-piece assembly includes:
- Inner portion, which fits in the door:
  1. Turn mechanism
  2. Slide bolt
- Outer portions, which fit on the outside of the door:
  1. Turn knob
  2. Escutcheon plate

INNER PORTION:

Turn mechanism (fan shaped)
  Width: 1-11/3
  Height
    Not including tab: 31/32"
    Including tab: 1-11/32"
  Thickness
    Of turn mechanism body: 5/16"
    Of tab: 3/16"
There are two holes in the turn mechanism
  Dia of top hole: 1/2"
  Dia of bottom hole: 3/8"
  Fitting this piece: The holes line up with and fit over
    the posts on the turn knob portion.

Slide bolt
  Dia: 11/32"
  Length: 3-7/16"
  There is a notch in each side of the slide bolt which fits the tab
  on the turn mechanism. One end of the notch is perpendicular to the length of the bolt. The other is at a 45 degree angle.
    Length of notch to widest part: 5/8"
    Length of notch at narrowest part: 3/8"
    Depth of notch on each side: 1/8"
    Length of bolt
      Before perpendicular end of notch: 2-1/8"
      Before shorter angled side of notch: 11/6"
      Before longer angled side of notch: 15/16"

OUTER PORTIONS:

Turn knob (male)
  Dia
    Outside rim: 1-5/8"
    Inside rim: 1-11/32"
  Outer handle portion
    Length: 1-5/8"
    Width: 5/16"
    Height off face of plate: 7/16"
  There are two posts extending out of the inside face of the
      turn knob, which snap into two holes on the escutcheon plate.
    Center post
      Dia: 13/32"
      Length, from inside face of turn knob: 1"
      NOTE: there are two horizontal grooves near the top of each
        side of the post, which receive a 'C' clip that is on the
        escutcheon plate.
    Outer post
      Dia: 15/32"
      There is a nipple on the end of the outer post.
        Length of nipple: 3/16"
        Length of post, from inside face of turn knob, including
          the nipple: 29/32"

Escutcheon plate (female)
  Dia
    Outside rim: 19/32"
    Inside rim: 11/32"
  There are two holes, which receive two posts that are on
      the turn knob.
    Middle hole
      Dia: 13/32"
      Depth: 5/16"
  NOTE: There is a 1/2" x 1" oval x 9/32" high 'island' in the
    middle of the escutcheon plate that houses the above two holes.
    This island has a 1/16" horizontal groove running its parimeter,
    From the top, a 1/16" steel 'C' clip fits in this groove and runs
    the length of the whole island on both sides. The groove and
    clip are designed so that the 'C' clip is exposed 1/16" inside
    of the larger, middle hole on both sides. The middle post of the
    turn knob has a 1/16" groove running the perimeter of its tip.
    The exposed 'C' clip on the escutcheon plate snaps into the
    groove on the male tip. This holds the two pieces together.