Metric Screws Phillips Pan Head Right Hand Threads Zinc Plated Fastener

Metric screws are by the head and the screw part of the composition of a class of fasteners, according to use can be divided into three categories: machine screws, set screws, and special purpose screws. Machine screws are used primarily for fastening connections between a threaded hole part and apart with a through-hole, without the need for a nut fit (this type of connection is referred to as a screw connection or a detachable connection; Used with nuts for fastening connections between two parts with through holes.) The set screw is used primarily to hold the relative position between two parts. Special purpose screws are used for hoisting parts such as eyebolts. Ever Hardware provides custom-made fasteners and customizable packaging.

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 metric screws rusting. The most common method is hot-dip galvanizing, in which parts are submerged in a bath of molten zinc. Galvanizing protects in three ways:
It forms a coating of zinc which, when intact, prevents corrosive substances from reaching the underlying steel or iron.
The zinc serves as a sacrificial anode so that even if the coating is scratched, the exposed steel will still be protected by the remaining zinc.
The zinc protects its base metal by corroding before iron. For better results, the application of chromates over zinc is also seen as an industrial trend.
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