TruConnect 3.5mm Gold Plated Stereo Jack Plug with Threaded Locking

3-5mm-Gold-Plated-Stereo-Jack-with-Threaded-Locking-Ring-TruConnect-20-2463-p-A-standard-3-5mm-stereo-jack-plug-that-features-a-gold-plated-centre-contact-and-locking-ring-The-connector-will-thread-lock-with-any-3-5mm-jack-socket-that-has-an-exposed-thread-p-TruConnect-3-5mm-Gold-Plated-Stereo-Jack-Plug-with-Threaded-Locking

Price: £6.29 from Rapid Online Rapid Electronics Ltd.