What component is designed to be bolted to the header and secured to the wall in a partial strut installation with masonry walls?

In a partial strut installation with masonry walls, the component specifically designed to provide the necessary support and attachment to both the header and the wall is the Unistrut. This versatile steel framing system serves as a means to securely hold and align various structural elements of the elevator door and entrance system. It allows for the bolting to a header while also ensuring a reliable connection to the wall.

The Unistrut's design includes a channel that allows for the easy and adjustable attachment of other components, thereby facilitating proper alignment and stability of the installation. This adaptability is particularly useful in conditions where masonry materials necessitate robust anchoring systems, as it provides the required strength to support the door system while also accommodating any adjustments during installation.

In summary, Unistrut is the best choice for this scenario due to its structural capabilities and suitability for securing components in a manner that maintains integrity in the overall installation process within masonry walls.