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Everything You Need to Know About Aircraft Hardware

If you are a serious pilot, you must know about all kinds of aircraft hardware. The reason for this is that you will be the one responsible for making sure your aircraft runs smoothly. This means you must clearly know everything or ask hardware distributors, including the aircraft parts that need to be replaced.

Aluminum 7075

Aluminum 7075 is a super hard aluminum alloy that is widely used in aircraft hardware. Its impressive strength and toughness make it perfect for parts requiring high stress and deformation resistance. The alloy is often used in aircraft, turbines, and other structural components.

It was first developed in 1935 by Sumitomo Metal, a Japanese company. The alloy was reverse-engineered in 1943 by Alcoa in the United States. This aluminum alloy has high zinc, magnesium, and copper content. Alloys such as this are used to produce a wide range of aircraft hardware, including instrument shafts, carry-through members, and spar caps.

In addition to aircraft hardware, aerospace aluminum has also been used for other applications, such as gears, keys, missiles, and fuse parts. Aerospace equipment is always evolving toward more durable and reliable systems. However, this equipment is also susceptible to cyclical stresses, which can weaken the material.

Stainless Steel

Stainless steel has been a staple in the aircraft industry for a long time. It has several advantages over other materials and can be used for many applications.

Among the many uses of stainless steel are jet engines and exhaust systems. The corrosion resistance makes it an ideal material for these critical systems. In addition, it is durable and formable, which makes it useful in structural parts.

The use of stainless steel in the aerospace industry is growing steadily. Stainless steels are now used in almost all types of aircraft. Many are made from 304 alloy, which is the most common type. However, other types are available.

Choosing the right hardware is an important decision. Depending on the application, stainless steel can be a more cost-effective choice. You should also consider the manufacturer’s specifications.


Titanium is a versatile metal used in aircraft hardware. It delivers superior strength and corrosion resistance and is lightweight. Some of the most common applications are in engine parts, landing gear, and nacelle.

Historically, the primary material for aircraft was aluminum alloys. Today, however, titanium has been introduced into the aerospace industry. These new materials can provide high-temperature performance, corrosion resistance, and lightweight.

Unlike most metals, titanium does not have high thermal expansion. This helps the aerospace industry achieve lightweight, efficient aircraft that can fly for longer periods. Additionally, it also reduces the amount of fuel used. Ultimately, this saves money on operational costs and helps to increase the range of a plane.

Aside from its use in aircraft, titanium is a popular choice for other industries. Some of these industries include the chemical, petrochemical, and medical industries.


Typically found on aircraft, turnlocks are a lightweight and nonpermanent alternative to other commonly used aerospace fasteners. They are ideal for coupling multiple parts together without damaging them. These nonstructural hardware items may be installed in areas of an aircraft that are not as accessible to an unskilled hand.

Turnlocks are a component of an aircraft body and can be purchased under various trade names. For this reason, it’s important to match the type of hardware to the aircraft’s plans. You’ll also want to use hardware of the right caliber. This includes choosing a stud and nut with a cadmium-plated steel spring.

Cotter Pins

Cotter pins are used in various aircraft hardware applications, from engine controls to landing gear to tailwheel assemblies. They are made from mild steel and stainless steel and are designed to be inserted into a hole to secure a component in place.

Using cotter pins is an easy and effective way to lock a nut in place. In some installations, cotter pins are used with a washer under the pin. This allows for greater protection against a nut coming loose. However, there are several reasons why cotter pins should not be reused.

The first reason is that cotter pins are designed to work in bolts with holes. These pins can only be inserted into bolts that have been pre-drilled with a hole.