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Installation Instructions for 1851Deadbolts

Fit here on door edge

Fit here on door edge

BACKSET

 60mm (2 3/8"

)

Mark centre-line

of latch hole

Mark centre-line

of latch hole

FOLD HERE

Installation template

for 1851 double

cylinder deadbolts

NOTE: 

Carefully follow these instructions when installing.

 

S

crews to be tightened to a recommended 2.5Nm torque max.

Step 1.

Step 2.

• Mark and chisel latch

 

faceplate until flush with 
door edge. Use latch

 

carrier as a template.

• Insert lock body into 

54mm (2 1/8") hole.

• Insert bolt carrier through 22mm 

(7/8") hole into lock body assembly

 

and fix with 2 screws. Ensure 

T-

shape 

at rear of bolt carrier is upright

.

54mm (2 1/8") hole

• Fold template where indicated

.

• Position template on door edge 

at desired latch height

.

• Firmly hold template and mark 

latch height on door edge

 

and 54mm (2 1/8") lock body

 

hole centre

.

• Measure door thickness and 

 

mark centre

.

• Drill 22mm (7/8

"

) latch hole 

 

through door edge.

 

Note: 

it is important to drill 

this hole squarely

.

 D

rill pilot hole for lock body

 

[suggested size 3mm (1/8")]. 
Then enlarge hole to 54mm 
(2 1/8"), drilling from both 
sides of the door

.

Step 3.

Step 4.

A

Please Note:

for a single cylinder deadbolt 
(ie. with internal turnbutton) 
ensure stem A is on
the internal side of the 
door. If this is not the 
case, rehand lock body 
by removing grub-screw with allen key provided, 
turn cylinder to desired direction and re-fasten.

• Insert key and rotate towards edge 

of the door.

• Insert bolt until stop and rotate key 

away from edge of the door.

• If bolt does not operate properly 

repeat above steps.

• Install plastic faceplate shim and 

faceplate, then screw into position.

• Insert screws through internal 

horse shoe & connect to 
external square cap.

Note:

 do not overtighten 

screws.
• Insert key and rotate to check 

lock function. Please note that 
deadbolt requires 180° key 
rotation to achieve 
deadlocking.

• If bolt does not operate 

properly repeat step 3.

interior side

ORIGINA

TION CRM GSH 853 071

1

Gainsborough Hardware Industries Limited,

Melbourne, Australia. A.B.N. 25 004 792 269

www.gainsboroughhardware.com.au

PA

IT166

JUL ‘11

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