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Double Sash Lock Installation Guide
For ease of installation and continued enjoyment of your Andersen® product, please read and follow this Instruction
Guide completely. You may direct any questions about this or other products to your local Andersen dealer,
found in the Yellow Pages under “Windows”, or call Andersen WindowCare® service center at 1-888-888-7020
Monday through Friday, 7 a.m. to 7 p.m. Central Time and Saturday, 8 a.m. to 4 p.m. Central Time. Assembly
and installation of Andersen products is the sole responsibility of the architect, building owner, contractor and/or
consumer and Andersen has no responsibility in this regard. Thank you for choosing Andersen.
Windows and doors can be
heavy. Use safe lifting techniques
and a reasonable number of
people with enough strength to
lift, carry and install window and
door products to avoid injury
and/or product damage.
Use of ladders and/or scaffolding and
working at elevated levels may be
hazardous. Follow equipment
manufacturer's instructions for safe
operation. Use extreme caution when
working around window and door
openings. Falling from opening may
result in personal injury or death.
Follow manufacturers’
instructions for hand or
power tools. Always wear
safety glasses. Failure to do
so may result in injury and/or
product damage.
“Andersen” and all other marks where denoted are trademarks of Andersen Corporation. ©1997-2011 Andersen Corporation. All rights reserved.
0003010 BB Revised 05/09/11
Double Sash Lock Installation Guide
for Andersen® 400 Series Tilt-Wash, Tilt-Wash Insert and
200 Series Narroline® Double-Hung Windows
Parts Included
(1) Installation Guide
(2) Sash Locks
(2) Sash Keepers
(12) #6 x 7/8" Screws
(1) Lock Cover
(1) Keeper Cover
Tools and Supplies
• Safety Glasses
• Phillips Screwdriver
• Drill
• 7/64" Drill Bit
• Tape Measure
• Pencil #6 x 7/8" Screw
Component Identification
Lock Cover
Keeper Cover
Sash Lock
Sash Keeper
1. Mark Location of Sash Locks
DO NOT cover Grille Grommet on sash with
Auxiliary Keeper. This will eliminate the
option of installing a grille.
• Center the Sash Locks between Grille Muntin
(or Grille Grommet if you do not have grilles)
and Side Stiles.
• Mark center locations for Sash Locks with
light pencil marks on check rail.
Grille Muntin
Side Stile
Mark Center
Location
Sash Lock
Grille Grommet
Interior View
Check Rail
Mark Center
Location
2. Apply Sash Keeper
3. Apply Sash Lock
4. Remove Center Lock and Keeper
5. Apply Lock and Keeper Covers
Punch out in center of Keeper Cover is to
reveal Grille Grommet. If your unit has a
Grille, remove punch out after installation by
pushing it out using a phillips screwdriver.
• Lock both Sash Locks.
• Unfasten two screws holding center Lock and remove.
• Unfasten two screws holding center Keeper and remove.
• Position a Sash Keeper to one side of
Upper Sash Check Rail, 1/32" back from
edge, and on center of pencil mark as
shown.
• Hold Sash Keeper in position while
drilling two 7/64" holes, no more than
1/2" deep, into upper rail.
• Secure Sash Keeper to Upper Sash
Check Rail using two #6 x 7/8" Screws,
supplied.
• Place Sash Lock on Lower Sash
Check Rail. Lock into Sash Keeper and
position parallel, 3/32" back from edge of
lower rail.
• Hold Sash Lock in position while drilling
two 7/64" holes, no more than a 1/2" deep,
into lower rail.
• Secure Sash Lock to Lower Sash Check
Rail using two #6 x 7/8" Screws, supplied.
• Repeat Steps 2-3 for second Sash Lock
and Keeper on opposite side of sash.
• If window is equipped with an interior grille that has a grille spoke
behind center Keeper, remove the grille.
• Attach Keeper Cover to check rail using two #6 x 7/8" screws
supplied.
• Attach Lock Cover to check rail using two #6 x 7/8" screws supplied.
1-3/4"
1-3/4"
1/32"
Sash Keeper
Upper Sash
Check Rail
Sash Lock
Lower Sash
Check Rail
3/32"
Lock
(Center)
Keeper
(Center)
Lock Cover
Keeper Cover
#6 x 7/8" Screw
#6 x 7/8"
Screw
Interior View
Interior View
Interior View
Interior View
Center Keeper
on Pencil Mark
Sash Keeper
Punch Out
Keeper Cover
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Double Sash Lock Installation Guide
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