Airbleed Screw for the Dellorto DHLA carburetors.
Please note that not every DHLA has these screws fitted.
There is a total of 3 variations of these screws so chose yours with care.
This particular variation uses o-ring # 8678 which you can order along with it (or separately if you want).
Required quantity per carburettor: 2
This is item number 56 in the drawing.