TYPES OF SCREW HEADS SQUARE - AN OVERVIEW

This is often the standard, straight-line slot that a flat-blade screwdriver suits into. Even though not as well-known since they was once, slotted screws are still made use of for his or her simplicity and common accessibility.A Robertson screw, also called a square[38] or Scrulox screw generate, is specified as ANSI Type III Square Middle and has