Avocet WMS uPVC Window Espag Mushroom Keep ERK041MB Striker Plate

Avocet ERK041MB window keep for uPVC windows with a mushroom cam espag lock, with 14mm screw hole centres and a 57mm length.

Avocet WMS uPVC Window Espag Mushroom Keep ERK041MB is a replacement Avocet ERK041MB window keep for uPVC window profiles. It takes a mushroom cam, the mushroom-shaped stud on the lock that hooks into the keep. It is unhanded, so it fits left- or right-hand windows and works with most multi-point espag locks.

Zinc with a silver finish, stamped ERK041MB or WKM041T on the keep plate. Sold singly, so you only replace the keep that has worn or broken. Before ordering, check the shape of the base matches your old keep.

Dimensions - Check It Fits:

Other sizes: Width 28mm

First look for a number stamped on your old keep. ERK041MB or WKM041T means this is the matching part. If there is no number, remove the keep, measure it end to end, then measure from the centre of one screw hole to the centre of the other.

This will not fit if: your espag lock uses roller cams or another non-mushroom cam, or your old keep has different screw hole centres.

What It Fits and Replaces:

• Direct replacement for keeps stamped ERK041MB or WKM041T
• uPVC windows with an espag lock that uses mushroom cams
• Most multi-point espag locks, on left- or right-hand windows

Key Benefits:

• Easy to identify – stamped ERK041MB or WKM041T, so you can match it against the number on your old keep.
• Mushroom cam keep – made for a uPVC window locking mechanism fitted with mushroom cams.
• Unhanded – the same keep fits left- and right-hand windows, so there is no handing to get wrong.
• Zinc body – a metal keep, not plastic, for the part the cam pulls against every time you lock the window.
• Sold singly – replace only the keep that has failed rather than buying a full set.

Product Specifications:

• Brand: Avocet
• Part number: ERK041MB
• Also stamped: WKM041T
• Range: WMS
• Product type: Keep for an espag window lock
• Cam type: Mushroom
• Handing: Unhanded
• Material: Zinc
• Finish: Silver

Pro Tips:

Pro Tip: uPVC window keeps sit in a shaped recess in the frame. Hold the old keep beside the new one and check the underside matches, not just the screw holes, or the keep may not sit flat.

Tools you'll need: A cross-head screwdriver.

What's in the Pack:

• 1 × Avocet Espag Mushroom Window Keep ERK041MB

Fixing screws are not included. Reuse the screws from your old keep.

Frequently Asked Questions:

What is a window striker plate?

It is another name for a window keep: the metal part on the frame that the lock's cam hooks into when you turn the handle. If it is worn or broken, the window may not lock or pull in tight.

Will the Avocet ERK041MB window keep fit my window?

Yes, if your old keep is stamped ERK041MB or WKM041T. If there is no number, check that your lock has mushroom cams and that your old keep has 14mm screw hole centres, a 57mm length and a matching base shape.

My old keep is stamped WKM041T. Is this the right part?

Yes. This keep carries the ERK041MB or WKM041T stamp, so both numbers identify the same part.

Does this keep fit a left-hand or right-hand window?

Both. It is unhanded, so the same keep works on either side.

Can I replace double glazed window keeps myself?

Yes, in most cases. Open the window, undo the screws on the old keep and fit the new one in the same position with the same screws. Close the window and check the cam locks into the keep smoothly.