LITTLE KNOWN FACTS ABOUT TYPES OF SCREW HEADS.

Oval: Sometimes known as elevated screw heads, oval heads have a similar angle to flat heads and for that reason need countersinking. This attractive dome-formed head is often useful for switch coverings. This means that You need to use a Robertsons screwdriver to drive in or clear away the screw. Or You should use a Particular 8-pointed design a