Grade 8 Black Oxide Alloy Steel

Black oxide alloy steel is a type of steel formed by adding a black oxide coating to an array of different metals. It’s particularly useful for applications where a sleek, strong fastener is required. More information about Socket Screws

51 Items

Image of item: 1/2-20 Button Head Socket Cap Screws Grade 8 Black Oxide Alloy Steel — **1/2-20 Button Head Socket Cap Screws Grade 8 Black Oxide Alloy Steel**

Image of item: 0-80 Flat Head Socket Cap Screws Grade 8 Black Oxide Alloy Steel — **0-80 Flat Head Socket Cap Screws Grade 8 Black Oxide Alloy Steel**

Image of item: 1-64 Flat Head Socket Cap Screws Grade 8 Black Oxide Alloy Steel — **1-64 Flat Head Socket Cap Screws Grade 8 Black Oxide Alloy Steel**

Image of item: 1-72 Flat Head Socket Cap Screws Grade 8 Black Oxide Alloy Steel — **1-72 Flat Head Socket Cap Screws Grade 8 Black Oxide Alloy Steel**

Image of item: 2-56 Flat Head Socket Cap Screws Grade 8 Black Oxide Alloy Steel — **2-56 Flat Head Socket Cap Screws Grade 8 Black Oxide Alloy Steel**

Image of item: 2-64 Flat Head Socket Cap Screws Grade 8 Black Oxide Alloy Steel — **2-64 Flat Head Socket Cap Screws Grade 8 Black Oxide Alloy Steel**

Image of item: 3-48 Flat Head Socket Cap Screws Grade 8 Black Oxide Alloy Steel — **3-48 Flat Head Socket Cap Screws Grade 8 Black Oxide Alloy Steel**

Image of item: 4-40 Flat Head Socket Cap Screws Grade 8 Black Oxide Alloy Steel — **4-40 Flat Head Socket Cap Screws Grade 8 Black Oxide Alloy Steel**

Image of item: 4-48 Flat Head Socket Cap Screws Grade 8 Black Oxide Alloy Steel — **4-48 Flat Head Socket Cap Screws Grade 8 Black Oxide Alloy Steel**

Image of item: 5-40 Flat Head Socket Cap Screws Grade 8 Black Oxide Alloy Steel — **5-40 Flat Head Socket Cap Screws Grade 8 Black Oxide Alloy Steel**

Image of item: 5-44 Flat Head Socket Cap Screws Grade 8 Black Oxide Alloy Steel — **5-44 Flat Head Socket Cap Screws Grade 8 Black Oxide Alloy Steel**

Image of item: 6-32 Flat Head Socket Cap Screws Grade 8 Black Oxide Alloy Steel — **6-32 Flat Head Socket Cap Screws Grade 8 Black Oxide Alloy Steel**

Image of item: 6-40 Flat Head Socket Cap Screws Grade 8 Black Oxide Alloy Steel — **6-40 Flat Head Socket Cap Screws Grade 8 Black Oxide Alloy Steel**

Image of item: 8-32 Flat Head Socket Cap Screws Grade 8 Black Oxide Alloy Steel — **8-32 Flat Head Socket Cap Screws Grade 8 Black Oxide Alloy Steel**

Image of item: 8-36 Flat Head Socket Cap Screws Grade 8 Black Oxide Alloy Steel — **8-36 Flat Head Socket Cap Screws Grade 8 Black Oxide Alloy Steel**

Image of item: 10-24 Flat Head Socket Cap Screws Grade 8 Black Oxide Alloy Steel — **10-24 Flat Head Socket Cap Screws Grade 8 Black Oxide Alloy Steel**

Image of item: 10-32 Flat Head Socket Cap Screws Grade 8 Black Oxide Alloy Steel — **10-32 Flat Head Socket Cap Screws Grade 8 Black Oxide Alloy Steel**

Image of item: 12-24 Flat Head Socket Cap Screws Grade 8 Black Oxide Alloy Steel — **12-24 Flat Head Socket Cap Screws Grade 8 Black Oxide Alloy Steel**

Image of item: 1/4-20 Flat Head Socket Cap Screws Grade 8 Black Oxide Alloy Steel — **1/4-20 Flat Head Socket Cap Screws Grade 8 Black Oxide Alloy Steel**

Image of item: 1/4-28 Flat Head Socket Cap Screws Grade 8 Black Oxide Alloy Steel — **1/4-28 Flat Head Socket Cap Screws Grade 8 Black Oxide Alloy Steel**

Image of item: 5/16-18 Flat Head Socket Cap Screws Grade 8 Black Oxide Alloy Steel — **5/16-18 Flat Head Socket Cap Screws Grade 8 Black Oxide Alloy Steel**

Image of item: 5/16-24 Flat Head Socket Cap Screws Grade 8 Black Oxide Alloy Steel — **5/16-24 Flat Head Socket Cap Screws Grade 8 Black Oxide Alloy Steel**

Image of item: 3/8-16 Flat Head Socket Cap Screws Grade 8 Black Oxide Alloy Steel — **3/8-16 Flat Head Socket Cap Screws Grade 8 Black Oxide Alloy Steel**

Image of item: 3/8-24 Flat Head Socket Cap Screws Grade 8 Black Oxide Alloy Steel — **3/8-24 Flat Head Socket Cap Screws Grade 8 Black Oxide Alloy Steel**

51 Items

Grade 8 Black Oxide Alloy Steel - Key Features

There are a few different aspects that set black-oxide alloy steel apart from other steel types. Specifically, you may expect this type of screw to have the following characteristics:

Strength

Screws made of Grade 8 black oxide have particular strength. The black oxide coating enhances the existing hardness of the original metal (often stainless steel or another steel alloy). This makes these screws ideally suited for heavy-duty purposes.

A Sleek Appearance

Thanks to the matte black appearance of black oxide alloy steel, these screws are ideally suited for certain aesthetics. It makes the screws both less reflective and much nicer to look at.

Corrosion Resistance

One of the most common reasons for using black oxide alloy steel is because it provides additional protection against corrosion. Since the coating itself is corrosion resistant, it magnifies the corrosion resistance properties of the underlying metal, it's a dual layer of protection.

Frequently Asked Questions About Black Oxide Alloy Steel

Which drive styles are available for grade 8 black oxide alloy steel?

Currently, we only stock socket cap screws treated with black oxide. This means that they must be driven by an Allen key or hex wrench.

Must black oxide alloy steel screws be used with washers?

Not in the least. Since these are socket cap screws, it's unlikely that washers will be required. However, some people use washers for an added layer of stability.

Which head styles do black oxide alloy steel screws come in?

You can buy either button-head socket cap screws or flat-head socket cap screws treated with black oxide.