WHAT DOES TYPES OF SCREW HEADS MEAN?

Screws have many different drive types, Each individual with its very own advantages and drawbacks. The slotted screw may be the oldest kind, with drawings with the 16th century exhibiting screws with slotted heads. numerous of such drives are limited to distinct utilizes or specific geographies. one example is the square recess or Robertson drive

the advantage of flat screws is that you won’t have to worry about your screw sticking out with the surface area and resulting in other things to capture on it, which is vital if you’re building your own private couch or creating a bookshelf that people will wander by typically. The spanner screw has two rectangular pins, generally referred to