What bolts are used for aircraft?
Aircraft quality bolts are made from alloy steel, stainless or corrosion resistant steel, aluminum alloys and titanium. Within our industry the first two are the most common. Aircraft bolts will always have a marking on their head. If you see no markings at all on the head of a bolt, do not use it.
Where are special fasteners used on aircraft?
Hi-Tigue special fasteners. Turnlock fasteners are used to secure inspection plates, doors, and other removable panels on aircraft. Turnlock fasteners are also referred to by such terms as quick opening, quick action, and stressed panel fasteners.
Do airplanes still use rivets?
Even with riveted joints, some commercial aircraft still have some welded components. For the critical components of an aircraft’s body, though, rivets are preferred because of their ability to withstand extreme stress without breaking or otherwise succumbing to damage.
What are the 3 basic thread types?
There are three standard thread series in the Unified screw thread system that are highly important for fasteners: UNC (coarse), UNF (fine), and 8-UN (8 thread).
What is aircraft structural fasteners?
Structural fasteners, used to join sheet metal structures securely, come in thousands of shapes and sizes with many of them specialized and specific to certain aircraft. Since some structural fasteners are common to all aircraft, this section focuses on the more frequently used fasteners.
What is the difference between Hi Lite and hi-Lok?
HI-LITE™ pins are the direct evolution of HI-LOK™ pins. These fasteners can be used for clearance, or low interference fit throughout aircraft, from wings to fuselage, in engine fairings, and more. Combined with HI-LITE™ nuts and collars, they provide up to 13% weight saving compared to the previous HI-LOK™ generation.
What is an Eddie bolt?
The Eddie-Bolt® 2 is a high-performance aerospace fastening system. The Eddie-PinTM is designed with five flutes in the upper portion of the threaded area which allow a positive mechanical lock to be made during installation with the free-running Eddie-NutTM.
What are the most common fasteners?
The 3 Primary Types of Threaded Fasteners
- #1) Screws. The most common type of threaded fastener is a screw.
- #2) Nuts. Another common type of threaded fastener is a nut.
- #3) Bolts. The third primary type of threaded fastener is a bolt.