Cam-out refers to a tad that slips out of the screw head. To paraphrase, If you're trying to tighten a screw, the the screwdriver idea keeps slipping out in the screw head, you’ve experienced a cam-out. Bugle Screws https://aronzisq343111.blazingblog.com/28207771/types-of-screw-heads-fundamentals-explained