Cylinder head oil drain bolts, in stainless steel. Will fit narrowcase or widecase. Replacement part for Ducati original #0400.92.020
Made in the UK exclusively for Discovolantemoto, these parts replicate the EARLIER type bolt, with the integral upstand to support the sealing washer more effectively than the variants not so equipped. Later variants did not feature this supporting shoulder because of cost cutting measures (*) - the later type could be machined from hexagonal bar but the earlier variants needed to have the hexagon machined onto them.
* - influence of the accountants!