Hex Head CA Type Thread Forming Screws - Metric provide a secure, vibration-resistant assembly due to the press threads formed to fit into the drilled hole. Their blunt ends mean they require a preexisting hole for installation, making them ideal for attaching materials like plastics, wood, or metal with no clearance and high stress resistance. Widely used in automated manufacturing processes, these thread forming screws cut further into the material for greater pull-out resistance.