The mounting thread diameter is for vehicles side mirror installation, It is not screw diameter of the mirror damper side which exists in part model.
The other one of 2 sets is reverse threaded type screw. It is spacer for adjusting the left and right h
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Dedicated Bike Used to fix the window using the screw of the mirror portion when installing the draft shield window to Yamaha JOG. Examining the screw on the left side turned out to be a positive screw with a diameter of 8 mm. When I tried it, JOG is turning right on the right side. Examine all right, left, and note it! However, is it necessary to turn the screw to the right? Is it? The bike side and the mirror side are (opposite), but both are reversed. Since one of the adapters is reversed, we decided to use two adapters with a combination of "inverse" and "positive / negative". As a spacer it was 2 cm x 2 and the total height was 4 cm. The goods themselves, neither good nor bad. It is only a matter whether it functions properly or not.