Gainsborough 1851 Installation Instructions page 2

Installation Instructions for 1851 Deadbolts
Step 5.
• Push internal cap onto
internal horse shoe.
• Tighten grub screw on
underside of internal
square cap
• For single cylinder
applications install
internal Turnbutton now
by tightening grub-screw
onto protruding shaft.
interior side
Lock body
External cap
door
frame
M4 Screws
Horse shoe
Step 6.
• Extend bolt out of
door and position the
door so that the
centrepoint of the
strike plate can be
marked on door
frame.
• Mark and drill a
25mm (1") hole to a
depth of 25mm (1"),
at a corresponding
height to the bolt.
• Mark and chisel recesses for strike
plate and optional reinforced strike plate.
• Screw into position using 4 wood screws as supplied.
Note: 2 larger screws should be used on reinforced
strike plate as illustrated.
Internal cap
Grub screw
Allen key