Secure with Pocket Screws

What happens here

With the boards held together, use a cordless impact driver fitted with a square-drive bit (or appropriate bit for your pocket screws) to drive Kreg pocket-hole screws into the pre-drilled pocket holes. Drive the screws until they are snug, being careful not to overtighten, which could strip the holes or crack the composite material. Start with the top screw and work your way down, ensuring the joint remains tight and flush. This step secures the mitered joint permanently.

Goal: Fasten the joined composite boards using pocket-hole screws for a durable corner