FACTS ABOUT TYPES OF SCREW HEADS REVEALED

Flat screw heads fully sit With all the floor which depart no A part of head uncovered for that reason these screws have to be countersink. The ASTER recess was built by LISI Aerospace[43] to supply a far more reliable Answer compared to hexagonal recess for assemblies of composite constructions on aircraft. The Slotted/Phillips (PH/S), also call