Boots (Wing) "Spring Locking Nut"
According to an "original" Boots Aircraft Nut Corporation's catalog. . .
"The All Metal Spring Locking Principle and One-Piece Construction of Boots
Self-Locking Nuts provide permanent reusable fastening wherever vibration occurs."
The All Metal Principle assures:
- Safe, tight bolt and screw connections
- Longer equipment life and lower maintenance cost
- Complete reusability without loss of locking efficiency
The One Piece Construction:
- Makes them quick and easy to apply
- Eliminates danger of omitting locking auxiliary
- Gives a lighter, more economical and easier to handle self locking nut