This thin, non-locking M5x0.8 hex nut holds the linkage levers in place on the secondary throttle lever on Weber progressive carburetors. Note that the Primary Throttle Shaft Nut (Part No. 1586-65) is larger. Fits 32/36 DGV (including 5A)/DGAV/DGEV and DFV/DFAV/DFEV carburetors. Not used on DGAS/DGES. Weber part number 34705.001.
This nut has many other Weber applications as well, including the Idle Air Bypass Screw Lock Nut on 40 DCOE, 45 DCOE. 40 IDF, and 44 IDF carburetors (note that the throttle shafts on those carburetors use a different DCOE/IDF Throttle Spindle Nut, Part No. WC-34710.003).
