5 Types of Bolts Used on Aircraft

Aircraft, with their intricate designs and cutting-edge engineering, rely on an array of components to ensure their structural integrity and functionality. Among these crucial components are bolts–unsung heroes that hold the intricate puzzle of an aircraft together. In this exploration, we will focus on five types of bolts that are commonly used in aircraft construction.

Hex Head Bolts

The hex head bolt is a staple in aircraft construction, recognizable by its hexagonal head that facilitates easy tightening and loosening using a wrench. These bolts are designed to endure high levels of stress and are commonly used in critical areas where structural strength is paramount. Hex head bolts come in various materials, such as stainless steel and titanium, offering engineers the flexibility to choose based on the specific requirements of the aircraft.

Countersunk Bolts

Countersunk bolts are characterized by their conical shape, which allows the bolt head to sit flush with the surface it is fastened to. Countersunk bolts are often employed in areas where a smooth surface is essential, such as on the exterior of the aircraft or in regions with high airflow. The streamlined profile of countersunk bolts not only minimizes drag and enhances the performance of an aircraft, but also contributes to its aesthetic appeal.

Anchor Bolts

Anchor bolts play a pivotal role in securing heavy components within the aircraft, such as engines and landing gear assembly. These bolts are designed with a threaded end and are often used in conjunction with nuts to create a secure and stable connection. The robust nature of anchor bolts provides a reliable foundation for critical components, ensuring that they can withstand the dynamic forces experienced during takeoff, landing, and in-flight maneuvers.

Toggle Bolts

Toggle bolts, also known as butterfly bolts, are unique in their design, featuring spring-loaded wings that expand once the bolt passes through a pre-drilled hole. This expansion creates a secure anchor point, making toggle bolts ideal for attaching lightweight panels and access covers. The versatility of toggle bolts lies in their ability to distribute the load evenly across a larger surface area, reducing stress concentrations and enhancing the overall durability of the aircraft structure.

Clevis Bolts

Clevis bolts are a specialized type of bolt designed for applications that require a pivoting connection. The bolt has a flat, broad head and is paired with a clevis, creating a joint that allows for rotational movement. Their adaptability ensures that they play a crucial role in the intricate systems that govern an aircraft's maneuverability and control. Thus, clevis bolts are commonly used in control surfaces, landing gear mechanisms, and other areas where controlled movement is necessary.

Conclusion

In the realm of aircraft construction, the selection of bolts is an integral part of the overall design strategy, going beyond mere functionality to guarantee robust connections. Engineers must consider factors such as material strength, aerodynamics, and weight distribution when choosing the appropriate bolt for a specific application. Here at Hardware Dispatch, we invite you to explore our range of offerings at your convenience. We also recommend using our online Request for Quotation (RFQ) service to swiftly and seamlessly secure quotes for items that capture your interest. Upon receipt and assessment of your completed RFQ form, one of our team members will contact you in 15 minutes or less to provide you with a customized solution for your comparisons. Keeping this in mind, get started today to see how we can help you procure all the structural bolts, AN bolts, machine screws, and other similar products you require.