The common slotted head is greatest utilized with a flat screwdriver, though the cross-formed indention is greatest suited to a Phillips screwdriver. A Robertson screw contains a sq.-shaped indention and requires a matching driver head. You cannot make use of a pozi driver over a Philips push screw, and You https://holdenazvsp.blog-ezine.com/28644009/the-definitive-guide-to-wood-screws