The standard slotted head is very best employed using a flat screwdriver, although the cross-shaped indention is finest suited into a Phillips screwdriver. A Robertson screw has a square-shaped indention and needs a matching driver head. The duration of these screws differs, but most drywall screws have flat heads that https://kylerpqqpm.look4blog.com/67555191/not-known-factual-statements-about-screws