Awning Pole Twist Lock Replacement?

Not really sure where to ask because trying to look up this specific piece is impossible.

Looking to replace this locking mechanism for my MAXI TRAC 8FT AWNING. Does anyone know what it's called or a better sub to post this on?

Thanks

https://preview.redd.it/axcr5z3470791.png?width=564&format=png&auto=webp&s=28e7941e1618cda977899eb2d0b91acaf3e6797e