Pinnacle Hardware Black Ruspert® Lock Nuts are hex Nuts with nylon inserts preventing the nut loosening from the bolt through vibration.
The Black Ruspert® finish provides a superior corrosion resistance making it great for both indoor and outdoor use.
Please note this lock nut can not be used near heat source as the nylon insert will deform affecting the locking ability. Use a spanner or socket to tighten the nut.
Suitable for a wide variety of fastening applications.