The normal slotted head is greatest made use of using a flat screwdriver, though the cross-formed indention is most effective suited into a Phillips screwdriver. A Robertson screw has a sq.-shaped indention and requires a matching driver head. In the event you’re dealing with a number of material thicknesses or https://johnathanqqrro.blog-kids.com/28527877/little-known-facts-about-wood-screws