M5 Hex Flange Nylon Insert Lock Nut, Black Carbon Steel

An M5 self-locking hex nut with a built-in flange and a nylon insert, made from black-finish carbon steel. It works as a replacement prop nut on motors with M5 threaded shafts and as a fastener for any M5 bolt in a vibration-prone assembly. Sold as a single nut.

Key features

• Nylon insert grips the thread so the nut holds under vibration without a lock washer.
• Integrated flange spreads the clamping load over a prop hub or plate, so no separate washer is needed.
• Metric coarse M5 thread to suit standard M5 bolts and threaded shafts.
• Hex body for a wrench or socket.

The nylon insert loses some grip each time the nut is refitted. On a prop, replace a nut that spins on easily by hand rather than reusing it.