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Aerotight Nuts.

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Aerotight Nuts

What are Aerotight Nuts?

Aerotight Nuts, also known as aerotight self-locking nuts or aerotight lock nuts, are precision-engineered components within the locking nut family designed for applications where security and vibration resistance are paramount. Characterized by their unique all-metal design, these nuts feature a distinctive collar that when installed creates a locking action, ensuring the nut resists loosening under vibration or torque, making aerotight nuts a reliable choice in critical assemblies.

How Aerotight Nuts Work.

The Aerotight lock nut stands out for its ability to maintain a firm grip in dynamic environments. Its primary application is in scenarios where vibration and rotational forces are prevalent, such as in aerospace, automotive, and heavy machinery. The nut's self-locking mechanism, achieved through a specialized top collar with slices in it, exerts radial pressure on the bolt, ensuring that it remains securely fastened even under extreme conditions.

Material Composition of Aerotight Fasteners.

Aerotight fasteners are available in various materials including A1 & A4 Stainless Steel and High Tensile Stainless Steel. Each material offers unique benefits: stainless steel variants provide corrosion resistance and durability, while high tensile options offer increased strength for heavy-duty applications. The choice of material depends on the specific requirements of the application, ensuring optimal performance and longevity.

Sizes, Types, and Finishes of Aerotight Nuts.

Ranging from M2.5 (2.5mm) to M24 (24mm) thread sizes, Aerotight nut dimensions cater to a wide array of requirements. Additional finishes, like AccuBlack chemical blackening, provide enhanced corrosion resistance and aesthetic appeal should you require a black reflection-free finish. The versatility in size, type, and finish options makes these nuts suitable for a diverse range of applications from aerospace to automotive projects.

You may also want to consider our Philidas nut range which offers a similar all-metal lock nut approach with a focus on re-usability or retaining torque.


Q: How do Aerotight nuts lock?.

A: Aerotight nuts lock using a top section that when installed, distorts and exerts inwards pressure on the bolt, creating a self-locking mechanism that effectively resists loosening under vibration or torque. Uniquely, this force is applied even when the nut it not fully torqued down.

Q: How do Aerotight nuts undo?.

A: Despite their self-locking design, Aerotight nuts can be undone using standard tools such as a socket set or spanner. The unlocking process requires a bit more torque compared to standard nuts due to their locking mechanism.

Q: How to use Aerotight nuts?.

A: Aerotight nuts are used like standard nuts but are particularly effective in applications where vibration resistance is critical. They are tightened onto a bolt or threaded rod until the locking mechanism engages.

Q: What is the Aerotight nut tightening torque?.

A: The tightening torque for Aerotight nuts varies depending on the size and material. It's essential to refer to specific torque guidelines provided for each nut dimension and material type. As a guideline, you can refer to our tightening torque chart.

Q: Are Aerotight better than Nyloc nuts?.

A: Aerotight nuts offer an advantage in high-vibration environments due to their all-metal construction, which can be more durable and heat resistant compared to Nyloc nuts. However, the choice depends on the specific application requirements.

Bespoke Aerotight Nuts Manufacture.

High precision, bespoke manufacture of Aerotight Nuts to customer specification. State of the art facilities specialising in both small batch prototyping and large scale manufacture.

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