Weber 45 DCOE Venturi Locking Screw

This special M8x1.0 screw holds the auxiliary venturi in place in the 45 DCOE and 48 / 50 DCO carburetors. It was also used on older "Made in Italy" 40 and 42 DCOE (note that current "Made in Spain" 40 DCOE use a different grub screw and locknut arrangement). 2 required per carburetor; sold individually.

This updated version is drilled for safety wire, but many mechanics still prefer to lock it in place with the original Lock Plate, Part No. 52155.003 (sold separately).