The common slotted head is best utilized that has a flat screwdriver, though the cross-shaped indention is greatest suited to your Phillips screwdriver. A Robertson screw has a square-shaped indention and needs a matching driver head. There are five different types of screws that the common DIY enthusiast will operate https://finnttrol.laowaiblog.com/27954142/5-simple-statements-about-screws-explained