The standard slotted head is best used which has a flat screwdriver, though the cross-formed indention is finest suited to your Phillips screwdriver. A Robertson screw incorporates a sq.-shaped indention and needs a matching driver head. The length of such screws differs, but most drywall screws have flat heads that https://elliottdmrwz.designertoblog.com/59555592/indicators-on-wood-screws-you-should-know