NOT KNOWN DETAILS ABOUT TYPES OF SCREW HEADS

These screws drop under the class of self-tapping screws. These screws are usually created with rounded heads that have no slots. Hammer generate screws are used for attaching nameplates or wall indications, together with are used to seal drain holes. Hex cap screws are six-sided bolts (hexagon) designed with a perforated hex head and also a washe