Frame fixings are specialized fasteners used to secure window and door frames to various materials like wood, masonry, and metal. Here are some key points about them:

Types of Frame Fixings:
Hammer Fixings: These are hammered into place and do not require screws, making them quick and easy to install1.
Screw Fixings: These come with screws and plugs, providing a strong and secure hold.

Materials:
Typically made from steel or other durable metals.
Often come with nylon plugs to ensure a tight fit and prevent damage to the surrounding material.

Applications:
Used for heavy-duty fixing of uPVC, wood, and metal frames to wood or masonry1.
Ideal for securing window and door frames into place.

Installation Tips:
Ensure the correct size of the fixing is chosen for the material and load requirements.
Pre-drill holes if necessary to avoid splitting the material.