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Multibolt 

The deadlocking multibolt

Components

Fixing Instructions

Q50010M  0907-2

Whitco Multibolt: 

For most aluminium and timber windows.

Operation: 

Key lockable bolt provides push to bolt and key to deadlock operation. 

Application: 

Provides safe bolting or deadlocking of most window types. 

CYL4

®

:

 Please see your local hardware retailer or locksmith prior to installation if you are having this product 

keyed to other locks in your home.

Determine fi xing location 

Select mounting position, refer to 
diagrams above. Hold assembled lock 
body in desired mounting position and 
check for:
• Orientation of cylinder
• Bolt movement 

Ferrule

Long Thick Bolt

Lock Body

Side Fixing Packer

Timber One Way 

Security Fixing Screws

Aluminium One Way 

Security Fixing Screws

Aluminium Fixing Screws

2

Removing tab

When using a 5 pin key (keyed alike with 
door locks) the square shaped tab in the 
base of the lock body will need to be 
removed. Do this by bending tab so that 
it snaps along the groove as shown.

Fit side mounting packer to lock

Fit plastic side mounting packer by 
pushing rectangular upstands into the 
recesses in the base of the lock body. 
Bend side packer around side of lock body 
and position on window with side packer 
against the sash.

Mark and drill bolt hole 

Fit lock body to window using standard 
screws. To mark bolt hole position, insert 
bolt and gently tap. Open window and 
drill a 10mm hole for short thick bolt.
Drill hole to suffi cient depth to suit bolt 
length but do not break through frame.

Ferrule Screws

Short Thick Bolt

Timber Fixing Screws

4

5

Side Fixing

Note:

 For face fi xing please see over page.

3

Side Fix

Face Fix

Keys

Long Thin Bolt

Screw Plugs

Thin Bolt Guide

Sliding Windows

Fit lock 

at end of

either window

Casement Windows

Fit lock 

in middle 

of window

Awning Windows

Fit lock at

bottom of

window

• Aluminium windows use the long thin bolt. 
   Timber windows use the long thick bolt. 

• Aluminium and timber windows use the 

short thick bolt.

Double Hung Windows

1

1

Face fi x to lower 

sash locking into 

upper sash

Mark and drill fi xing holes

Check clearance of screws with the 
glass line.

 With window tightly closed, 

position lock body where it is to be 
mounted and mark mounting locations 
by tapping a nail or marker through 
screw holes. Drill two 3.5mm pilot holes 
for timber or two 4mm pilot holes for 
aluminium.

Note:

 

When drilling screw and bolt holes 

do not drill through the lock body as this 
may damage the lock mechanism.

Side Fixing

1

1

Face Fixing

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