What Are the Standard Aircraft Hardware Kits?


You might have questions about standard hardware that you should know before buying it. These include shear nuts, plate nuts, Cotter pins, and full-diameter-shank bulk fasteners. These are manufactured following the specifications defined by the National Standards Association (NSA), which is based in Washington, DC. Moreover, these kits contain the necessary tools and information to complete your work efficiently.

Shear nuts

Standard aircraft hardware kits contain shear nuts. They are the most common type of nut and come in several different styles, including plain, half-height, and wing nuts. This type of nut is typically used for applications where space is limited or adjacent components may interfere with the installation of a full-size nut. This type of nut is sometimes called a “thin nut” because of its slimmer profile and lack of locking features. Also contact Ti-TEK that provides the best Titanium alloy and other hardware kits.

Plate nuts

When purchasing a kit for aviation hardware, make sure you select the appropriate type of plate nuts. There are various styles of plate nuts, from self-locking to self-wrenching. Some are corrosion-resistant steel, while others are made of aluminum alloy. In addition to the standard wing type, there are bellows and Roll-top styles. The wing type is the most common, and it comes in sizes ranging from 6 to 1/4 inch.

Cotter pins

One of the most overlooked pieces of aviation hardware is the cotter pin. A cotter pin is a small metal rod used in aircraft to connect various parts of an airplane. Without a cotter pin, a plane can’t control its braking system. Cotter pins are incredibly inexpensive, costing only a nickel each, and they are crucial to safety. So you may be wondering why they are included in a standard hardware kit.

Full-diameter shank bulk fasteners

ARP offers five-bolt, full-shank bulk fastener kits in stainless steel, black oxide alloy steel, and full-diameter shank. These fasteners are designed to accommodate many applications and include full-diameter shank, metric, and imperial sizes. In addition to their metric counterparts, ARP’s full-shank bulk fasteners are made with a J-form thread profile. This thread profile is designed to minimize stress concentration.

J-form thread profile

A J-form thread profile is more common on current production aircraft fasteners. This type of thread profile has a broader root radius and modified crest, minimizing stress concentration in the fastener. This is the same thread profile that will be used on most aircraft bolts and nuts. 

AN bolts

The AN bolts are bolts used in aircraft. Moreover, they typically have a hexagonal head and a shank. The shank is threaded on one end. The unthreaded portion of the bolt is known as the grip. The length of the bolt is determined by the first digit, which can be either an inch or an eighth. Some bolts have holes drilled into them for a safety wire or Cotter Pin.

Stainless steel

Stainless steel aircraft hardware kits contain screws and washers to replace non-structural hardware in an airplane. They have approved parts that aviation manufacturers use. Stainless steel screws are an excellent option for aircraft mechanics and homebuilders. They are also an affordable way to replace corroded and rusted hardware. Considering purchasing a stainless steel aircraft hardware kit, consider the following tips. First, know your plane’s specifications. Stainless steel screws have a higher resistance to corrosion than other metals, so they are an excellent choice for airplanes with limited TLC.


When looking for aircraft hardware parts, you may wonder what you can use titanium for. Titanium is a highly durable material that offers the highest strength-to-weight ratio of any metal and is often used in military applications. In addition to being lightweight, titanium is also corrosion-resistant. 


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