Drake Two-Piece Lock Nuts

Drake Two-Piece Lock Nuts, or Two-Piece Lock Nuts, are free-spinning two-piece locknuts that consist of a bottom nut with a flexible slotted crown and a top nut. Two-piece lock nuts can be positioned anywhere along the length of the thread.

Frequently Asked Questions About Drake Two-Piece Lock Nuts

What are two-piece lock nuts used for?

Two-piece lock nuts are ideal for applications subject to high-vibration, including many industrial applications like power plant engines. The free-spinning aspect also makes them ideal to be used with longer screws and threaded rods. 

How do two-piece lock nuts work?

The two pieces give the nut double-locking action where the bottom nut’s flexible slotted crown digs into a male thread as the second nut is fastened on top.

What is the difference between a Drake lock nut and a prevailing torque lock nut?

The double-locking nature of the Drake two-piece lock nuts provides superior holding power compared to prevailing torque style lock nuts in high-vibration applications. 

What sizes do two-piece lock nuts come in?

AFT offers Drake two-piece lock nuts in diameter-thread sizes ranging from 1/4”-20 to 7/8”-14. 

What materials and finishes are two-piece lock nuts available in? 

Two-piece lock nuts are available in steel with a plain finish.