Andersen® windows and doors can feature removable interior grilles, which are secured to the window frame using fasteners or plungers. Fasteners are located at the ends of interior grilles, which secure the grilles to sit on top of the window.
Install Grille Fasteners for Removable Interior Grilles on Andersen® Windows and Patio Doors
Fasteners can differ based on window and patio door Series, vintage, and grille shape.
Use the images and information below to help you identify and order the correct replacement grille fasteners or Contact Andersen® Windows and Doors for ordering assistance.
Let's Get Started
Tips to Determine Correct Replacement Fastener
- Examine your current grille pattern. Standard grille patterns may use different fasteners than custom grille patterns.
- Inspect the ends of the grille itself. Look at the fastener's shape, material, and how it is positioned on the grille.
- Inspect the material surrounding the glass where the grille attaches to in the window or patio door's frame. Look at the window or door frame to determine the type of surface the grille attaches to. You may find vinyl surfaces near the glass and frames that the grilles clip into.
When you locate the correct fastener from the list below, expand the details tab for ordering and installation information.
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Pivoting Grille Fastener
The pivoting grille fastener is located at the end of the grill and pivots open to allow installation of grilles. Look for a rotating mechanism at the end of the grille. Pivoting grille fasteners are commonly found in tilt-wash double-hung windows and picture windows.
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1. Order Parts
Order a pivoting grille fastener in White or Sandtone from the Andersen Parts Store.
2. Install Parts
To install the replacement fastener, see Interior Grilles for Andersen® 200 Series Tilt-Wash Double-Hung Windows (0005266). 
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Pivoting Grille Fastener
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Nylon Chisel Plunger
The nylon chisel plunger is inserted into the end of the grille and has a chisel-shaped tip. Look for a flat, angled plastic tip at the end of the grille. The nylon chisel plunger is commonly found on 400 Series windows without grommets, which were introduced after May 2010.
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1. Order Parts
Order a nylon chisel spring plunger from the Andersen Parts Store.
2. Install Parts
To view an installation video for chisel plungers, see Interior Removable Grille Installation for 400 Series Woodwright® or 400 Series Tilt-Wash Double-Hung Windows.
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Nylon Chisel Plunger
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Spring Plunger
The spring plunger is a spring-loaded plunger that fits into a circular grommet on the window sash. Look for a small spring-loaded pin near the top of the grille to locate it. The spring plunger is commonly used on older 400 Series and 200 Series windows.
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1. Order Parts
Order a removable grille spring plunger from the Andersen Parts Store.
2. Install Parts
For Andersen Narroline® double-hung and Circle Top™ windows, see Interior Hardwood Grille Application Guide (0005178). 
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Spring Plunger
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OSF Fastener
The OSF fastener is used on a wide range of products, but commonly found on patio doors, specialty windows, and custom grilles. This fastener is often used when other fasteners don't fit due to custom grille shapes.
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1. Order Parts
Order an OSF metal fastener in White, Terratone, Forest Green, or Sandtone from the Andersen Parts Store.
2. Install Parts
For A-Series, 400 Series, and 200 Series windows and patio doors, see Interior Hardwood Grille Application Guide (0005285). 
To view an installation video for OSF fasteners, see Interior Removable Grille Installation for 400 and 200 Series Patio Doors.
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OSF Fastener
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Barbed OSF Fastener
Barbed OSF fasteners are barbed version of the traditional OSF fastener for a secure grip in wood. It is commonly used on A-Series, architectural, and Woodwright® windows. It is available in multiple colors.
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1. Order Parts
Contact Andersen® Windows and Doors for ordering assistance.
2. Install Parts
For A-Series, 400 Series, and 200 Series windows and patio doors, see Interior Hardwood Grille Application Guide (0005285). 
To view an installation video for a barbed OSF fastener, see Interior Removable Grille Installation for 400 Series Woodwright® or 400 Series Tilt-Wash Double-Hung Windows.
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Barbed OSF Fastener
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Flat Fastener
Flat fasteners are commonly used on casement and awning stationary windows and gliding patio doors. This fastener is used with vinyl lips next to the glass.
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1. Order Parts
Order a flat clip fastener from the Andersen Parts Store.
2. Install Parts
For A-Series, 400 Series, and 200 Series windows and patio doors, see Interior Hardwood Grille Application Guide (0005285). 
To view an installation video for flat fasteners, see Interior Removable Grille Installation for 400 and 200 Series Patio Doors.
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Flat Fastener
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Barbed Fastener
Barbed fasteners are similar to flat fasteners, but there are barbed metal clips on the sides to press into wood surfaces or wood stops. They are commonly used on 400 Series specialty and picture windows.
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1. Order Parts
Order a barbed clip fastener from the Andersen Parts Store.
2. Install Parts
To view an installation video for barbed fasteners, see Interior Removable Grille Installation for 400 and 200 Series Patio Doors.
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Barbed Fastener
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Hub Fastener
The hub fastener was used on elliptical and half-circle windows with grilles, but it is discontinued and no longer available for purchase. However, a barbed fastener can be used as a replacement.
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1. Order Parts
Order a barbed clip fastener from the Andersen Parts Store.
2. Install Parts
For 400 Series elliptical windows, see Perma-Fit® Interior Grilles for Andersen® 400 Series Elliptical Windows (0005190). 
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Hub Fastener
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Perma-Shield® Gliding Patio Door Fastener
Perma-Shield® Gliding Patio Doors manufactured from 1978 to 1985 use a fastener that is no longer available for purchase online.
Contact Andersen® Windows and Doors for assistance.
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Perma-Shield® Gliding Patio Door Grille Fastener
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