I bought it for the Bar end mirror and when you tighten the Screw, you can stand on the Nut gradually The mountain on the top of the mountain is fixed in the groove
The problem is that if you don't tighten the Screw too much, the Mirror will turn due to vibration, and if you don't tighten the Screw too much If you over-tighten it, it will bite into the groove too much and won't come off (currently 1pc. it's not coming off)
Looks like you access from European region.
Would you shop at webike.eu.com?

