The typical slotted head is best employed which has a flat screwdriver, when the cross-formed indention is finest suited to a Phillips screwdriver. A Robertson screw includes a sq.-formed indention and demands a matching driver head. The duration of these screws differs, but most drywall screws have flat heads that https://wood87520.ja-blog.com/28568842/the-ultimate-guide-to-wood-screws