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Aerospace Fasteners Parts

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A fastener is a small mechanism that is used to form a connection between two separate components. A fastener must be in rigid in nature, but the connection it creates is not permanent. Ropes and hinges technically fall under this category, but they are not classified as fasteners. Examples of fasteners are cable ties, bolts, buttons, clutches, clips, and clamps.

Fasteners are required to work in adverse conditions such as extreme temperatures and pressures. Materials such as aluminum and titanium are popular as they are lightweight. Fasteners that are resistant to corrosion are preferable as they require less maintenance.

We at ASAP NSN Hub, owned and operated by ASAP Semiconductor, supply fasteners from top manufacturers worldwide. Some of the manufacturers that provide fasteners include Monogram, Arconic, 3V Fasteners, PCC Fasteners, Eaton, and Huck International.

Fasteners must abide by FAA regulations concerning the shape, size, and composition. While the American Society of Testing and Materials (ASTM) have a set of standards, the standards that are more regularly referenced are issued by the military, NASA, and Boeing. Traceability is a key standard for the military. A machine could malfunction if a fastener is not up to standard.

Fasteners are associated with various other hardware pieces.

Drive types include Phillips and Frearson, slotted, socket, one way, square, and star.

Washer types include fender, flat, split lock, external tooth lock, square, ogee, and finishing.

Nut types include cap, acorn, flange, tee, k-lock, Keps, coupling, castle, and pin lock.

Aerospace Fasteners

Varying pressure and temperature can greatly affect the lifespan of a fastener. Quality, material, and weight are all factors that can be changed in the manufacturing of fasteners. Aluminum is a material that is regularly used in the manufacturing of aircraft. Due to the extreme environments in which spacecraft operate, spacecraft manufacturers have less demand for aluminum. Steels pose a dilemma for aircraft manufacturers as it is a durable material, yet it is heavy in nature. However, CRES Series Steel is a popular material choice for screws and bolts.

Automotive Fasteners

The  Society of Automotive Engineers (SAE) has set out various rules and regulations that are designed to bring uniformity to the manufacturing of fasteners. The design, shape, and composition of fasteners should be identical. Bolts, studs, and nuts are commonly used in the automotive industry.

Automotive Bolts

Bolts are defined in terms of head, thread, and grip. The bolt head comes in various shapes and sizes. Bolts have a longer grip length and a shorter thread length to accommodate a nut. Bolts are popular pieces of hardware as they are both strong and rigid.

Automotive Nuts

Nuts fasten and secure bolts. For a secure connection, the shape and type of a nut should correspond with the specifics of the bolt. Automotive nuts are typically hex or square in shape with a threaded hole through the middle.

Automotive Studs

Applications that have higher level of stress require the use of studs rather than bolts. Studs are threaded on both ends with an unthreaded middle. Bronze, aluminum, copper, brass, nylon, and plastics are all materials used to make studs.

Marine Fasteners

The environment in which fasteners are located greatly influences the material and makeup of the fastener. The level of salt contact requires fasteners to have a strong resistance to corrosion. Once more, marine craft feature many wood components. Most marine fasteners are made of either stainless steel or silicon bronze.

Stainless steel is resistant to corrosion and offers strength and rigidity. CRES Series Steel 18-8 and 316 are used in the marine industry. Silicon Bronze is made of copper, silicon and corrosion resistant alloys such as zinc. This material is highly resistant to corrosion and is often used in application below the waterline.


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