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Pair of Dual Screws for sash window security

Qty From Qty To Unit Price
1 £11.95
2 4 £11.45
5 9 £10.95
10 25 £9.95
26 50 £9.45

Pair of Dual Screws for sash window security
Pair of Dual Screws for sash window security

Click to enlarge

Pair of Dual Screws - full kit for one sash window
Two 69mm long x 5mm diameter steel bolts
Two brass bushes per bolt
29mm and 12mm long x 11mm diameter
Key included

This very simple security device is completely concealed from view (from the outside).
Discreet on the inside
Simple to fit yet effective.
With both sashes in the closed position
Using a 10mm drill bit, drill through the top rail of the inner sash and just into the outer sash
Then open the sahes to gain access to the outer sash bottom rail
Carefully drill the hole to a depth of 13mm
Using a depth stop on your drill bit will make your job more accurate and quicker
(see below)

Carefully knock in the longer bush into the inner sash
and the shorter bush into the outer sash
Hold a lump hammer against the other side of the frame
to support the frame and reduce the risk of shattering the glass


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Delivery costs are
calculated by weight.

Starting at  £1.95
for the lightest items

Rising in increments
to £11.50
for up to 25kg
combined weight
for UK delivery.

Special Delivery option
for next day delivery.
Order by 2.00pm

International delivery
also available.
Please select destination
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