AS9120B, ISO 9001:2015, and FAA AC 0056B ACCREDITED

The Basics of Floating Anchor Nuts and How They Work

Fixed anchor nuts, the built-in nut in the center of a floating anchor nut is able to move or “float” around slightly while remaining attached to a stamped metal plate. This allows for easier installation while maintaining a strong, reliable hold.           

Floating anchor nuts which are also called “nutplates,” consist of a sheet of stamped metal with a built-in nut that provides the threaded hole for a bolt to lock into. Nutplates are typically riveted in place and have two or more holes on the plate surrounding the nut. To do this, a rivet can be driven through the holes on the sides of the plate so that it stays in place. Then, you can insert a threaded rod into the floating anchor nut. The built-in nut can move around slightly so you do not have to position the rod perfectly over the hole.

Floating anchor nuts are a type of blind fastener which are bolts, rivets, and other fastening hardware that are designed for use in passages that are only accessible from one side. Rather than needing to fasten the component on both sides manually, blind fasteners have an expandable end which extends fully on the unseen or “blind” side of a passage when the fastener is fully screwed or forced in. For this reason, they are easier to install and are more resistant to vibration than some other fasteners. These qualities make blind fasteners a valuable component on aircraft.

As a fundamental piece of aircraft construction, it is crucial to find fasteners that match your exact needs and reach the standard of quality expected regarding your airplane design. At Aviation Domain 360, we offer a large inventory of aircraft ground support equipment and aviation parts from accredited manufacturers you can trust. Browse our online catalog at your leisure or send an Instant Request for Quote (RFQ) form today to receive a customized quote for your comparisons within 15 minutes!


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