Pan Head Screw Self Tapping Screw Manufacturer Pan Head Tapping Screw

Pan head screw for general applications. Can be substituted in most applications for round, truss or binding heads. Slotted pan heads have a flat or gently rounded top surface, cylindrical sides, and a flat bearing surface. Phillips, Torx® and square pan heads have a rounded top surface, cylindrical sides, and a flat bearing surface. Ever Hardware provides custom-made fasteners and customizable packaging.

A self-tapping screw is a screw that can tap its own hole as it is driven into the material. For hard substrates such as metal or hard plastics, the self-tapping ability is often created by cutting a gap in the continuity of the thread on the screw, generating a flute and cutting edge similar to those on a tap. Thus, whereas a regular machine screw cannot tap its own hole in a metal substrate, a self-tapping one can (within reasonable limits of substrate hardness and depth). For softer substrates such as wood or soft plastics, the self-tapping ability can come simply from a tip that tapers to a gimlet point (in which no flute is needed). Like the tip of a nail or gimlet, such a point forms the hole by displacement of the surrounding material rather than any chip-forming drilling/cutting/evacuating action.

Galvanization, or galvanisation, (or galvanizing as it is most commonly called in that industry), is the process of applying a protective zinc coating to steel or iron, to prevent pan head screw rusting. The most common method is hot-dip galvanizing, in which parts are submerged in a bath of molten zinc.