The typical slotted head is greatest made use of using a flat screwdriver, though the cross-shaped indention is most effective suited to a Phillips screwdriver. A Robertson screw incorporates a square-shaped indention and demands a matching driver head. The length of those screws may differ, but most drywall screws have https://wood-screws53085.designi1.com/50478032/the-basic-principles-of-wood-screws