The typical slotted head is finest made use of which has a flat screwdriver, while the cross-formed indention is most effective suited to the Phillips screwdriver. A Robertson screw provides a sq.-shaped indention and requires a matching driver head. There are 5 different types of screws that the average Do https://screws22086.suomiblog.com/getting-my-wood-screws-to-work-43642961