Jam Nut, Lock Nut, Check Nut, How to fix Jam Nut

What is a lock nut? How does it work?

Review on anti-loosening methods for threaded fasteners - ScienceDirect

Assembly and Installation Tips: Understanding Jam Nuts and How to Use Them

Aircraft Maintenance: Understanding nuts - AOPA

The Use of Two Nuts to Prevent Self Loosening of Fasteners

Locking Nuts on a Bolt – Steadman's Ace Hardware

Jam nut

A reliable locking performance using a two nut design

Washer Between Jam Nuts Prevent Wrench Slippage

Lock Nut Types: Nylon Insert Lock Nuts, Jam Nuts, and Bearing Lock Nuts

A reliable locking performance using a two nut design

Half Lock Nuts or Split Nuts - J C Gupta & Sons

1/2-28 Thread Jam Nuts Steel for 223 (Stainless Steel - 12pc): : Industrial & Scientific