Self tapping bolts for steel small self tapping screws metal screws
Self tapping bolts for steel are also known as self tapping screws. A self-tapping bolt 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. Ever Hardware provides custom made self tapping bolts for steel and customizable packaging.
Zinc coatings prevent oxidation of the self tapping bolts for steel by forming a barrier and by acting as a sacrificial anode if this barrier is damaged. Zinc oxide is a fine white dust that (in contrast to iron oxide) does not cause a breakdown of the substrate’s surface integrity as it is formed. Indeed, the zinc oxide, if undisturbed, can act as a barrier to further oxidation, in a way similar to the protection afforded to aluminum and stainless steels by their oxide layers. The majority of hardware parts are zinc-plated, rather than cadmium-plated.
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|Category||Self tapping bolts for steel|
|Thread type||Machine threaded|
|Material||Steel or Stainless steel/Aluminum/Titanium|
|Place of origin||China Mainland|
|Size option||M1.0 to M30|