The normal slotted head is best made use of by using a flat screwdriver, whilst the cross-formed indention is ideal suited to some Phillips screwdriver. A Robertson screw has a sq.-shaped indention and demands a matching driver head. This bolt, along with the machine screw that goes with it, sits https://wood-screws00752.blogocial.com/the-definitive-guide-to-wood-screws-64416784