Not known Factual Statements About types of screw heads
they offer far more steadiness into the applied drive as compared with the Phillips screws. The difference between a Phillips screw along with a posidriv can be here determined by on the lookout them from aspect. you can find ribs amongst the many 4 arms of your posidriv and are marked by ‘pz’. flat head screwhex head screwlag screwsPhillips s