A elevated screw head is usually baffled with other screw heads as it is comparable to your flat screw but has extra of the dome shape. When making use of this type of screw, you may have to take the angle on the head into consideration and countersink the screw. https://types-of-roof-damage59264.blogocial.com/the-definitive-guide-to-types-of-screw-heads-uk-65379893