An Unbiased View of types of screw heads
Trim or undercut head oval head screws are offered with lowered screw lengths to supply for improved thread grip. This is very true of the oval undercut head fastener which has a shallower countersink. A fast glimpse may well give the impact that these are a Philips type screw, but these isn't the circumstance. The Pozidriv screw is definitely a a