What’s the use of black oxide phillips pan head screws?

Black oxide phillips pan head screws refers to screw head type for pan head, groove type for phhillips groove, surface treatment for black oxide screw, generally speaking, black oxide screw material are iron, also do stainless steel high temperature black screw.

The purpose of black oxide treatment on screw surface is mainly to achieve the purpose of rust prevention. It is a common means of chemical surface treatment. The principle of blackening, unlike that of black zinc plating, is that blackening is the formation of an oxide film on the metal surface to insulate the air. To achieve the purpose of rust prevention.

Black oxide phillips pan head screws refer to GB/T 818-2016- phillips pan head screws. This standard specifies the type size, technical conditions and marking of phillips pan head screws. black oxide phillips pan head screws can refer to GB 845-1976-phillips pan head self tapping screw.

For more information about black oxide phillips pan head screws, you can directly call Shi Shi Tong Metal Products Co., Ltd .

If you want to customize black oxide phillips pan head screws, please send an email: annie.li@szsst88.com