PVC Plugs
February 2, 2016Self Tapping Screws
February 16, 2016Wood Screws / Half Threaded Screws
These are always half threaded screws and generally in slotted head, though Phillips head is available in special sizes as required.
In these screws threading is done only on half portion of the length of the screw and the rest is the shank of the rod. This is raised by a head of the screw which is counter sunk and slotted or recessed as per requirement. The base of the head is bugle shaped or conical so as to grip it in within the fixture.
These screws are available in steel and sometimes plated with zinc or nickel and nowadays they are available in Stainless steel also.
The screws are available in multiple of 100 nos. in small packets.
They are used to affix furniture and generally used in wood hence they are also called Wood Screws. They are prominently used to fix electrical fittings etc
Available in diameter from 3mm up to 6 mm and in length from 12mm up to 150 mm.