The conventional slotted head is best employed that has a flat screwdriver, though the cross-shaped indention is very best suited to your Phillips screwdriver. A Robertson screw contains a square-shaped indention and needs a matching driver head. You will discover 5 different types of screws that the typical Do-it-yourself enthusiast https://timcoscrews76308.rimmablog.com/28008658/top-guidelines-of-wood-screws