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Surface Treatment

Black Oxide

Black Oxide can be selected according to corrosion resistance, strength requirement, appearance, assembly fit, and customer standards.

Finish Overview

Black oxide is used mainly on steel parts where a dark appearance and light surface protection are desired, often for mechanical fasteners and indoor hardware.

Surface treatment should be selected together with the base material, service environment, appearance target, corrosion resistance, and assembly requirement.

Discuss Finish Options

Finish Review Checklist

Base materialCoating thicknessSalt spray targetColor / appearanceThread fitPackaging

Why This Finish Is Used

Dark appearanceCommon on mechanical partsUseful on some fasteners and machined parts

Typical Product Uses

BoltsScrewsPinsIndoor hardware

Selection Points

Appearance goalCorrosion expectationOil or post-treatment needIndoor vs outdoor use

Product types

Product Types With Black Oxide

Browse related product types under the same family and select the option closest to your drawing, assembly, or sourcing requirement.

Engineering RFQ

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