trade priced self drilling drywall screws, are designed for fixing a wide range of plasterboards to heavier gauge metal studs upto a maximum of 2.5mm Often known as AJ’s or Jackpoints, our self drilling drywall screws are bugle headed with a deep phillips recess. They are bright zinc plated to give a silver finish and offer good corrosion protection. The self drilling point ensures clean, smooth low torque installation, whilst the bugle head design gives a flush finish with no paper tear.