Screw In Frame Ties P Shape – 150mm Carbon Steel

Screw in frame ties are one of those fixings that get used on almost every new build and renovation where timber frames meet masonry. This P-shaped tie is designed to connect wooden window and door frames directly to brick, block, or other masonry substrate, pulling the frame tight to the wall without the need for complicated fixing arrangements. At 150mm long with a 6mm diameter shank and 40mm of thread, these ties give solid, consistent pull-in across a range of wall thicknesses and frame sizes. They install using a standard nylon wall plug, which keeps the job straightforward and reduces the number of components on site.

The P shape is the standard profile for this type of tie. The plate section sits flat against the frame, distributing the load across the timber rather than concentrating it at a single point, and the screw shank drives cleanly into the masonry plug. The result is a fixing that holds the frame firmly in position while still allowing for the kind of minor adjustment you often need before everything is finally made good.

Where Screw In Frame Ties Fit Into the Build

These ties work in both new-build and refurbishment settings. On new builds, they are typically installed as the frames go in, with the masonry around them built up or the frame pressed tight to an existing opening. On refurbishment jobs, they are equally useful for resecuring frames that have worked loose or for fixing replacement frames into existing openings where the original fixings have failed or were inadequate.

The ties also cover masonry-to-masonry connections when used with a nylon plug, making them a genuine universal fixing for a range of frame and structural connection jobs on site. One box in the bag means you are covered for most situations.

Finish and Corrosion Resistance

These frame ties carry a zinc and yellow finish over carbon steel, giving a corrosion rating of 2 on the standard 1 to 5 scale. That rating makes them suitable for occasionally damp or wet conditions and sheltered rural environments. They are not rated for aggressive coastal or permanently wet conditions, so check the exposure category before specifying for projects near the sea or in heavily exposed locations.

For sheltered domestic and light commercial work, which covers the vast majority of frame fixing jobs, the finish is entirely appropriate. The zinc and yellow coating also makes them easy to identify on site and gives some protection against handling and storage conditions before installation.

At 150mm with a full 40mm thread length, these screw in frame ties provide deep engagement into the masonry plug, which matters when you want a fixing that will stay secure through seasonal movement and temperature change. A box of 100 covers a reasonable run of window and door frames, and with a pack weight of 4.3kg, a single box is easy to manage on the job.