Screw metal sheet handlebar cover M8 mm, slotted head, front, bottom

aluminium Product description
The spring-seats all possess an internal diameter of 10mm and are therefore interchangeable.
One version is made of steel with a bronze sleeve, the other is completely made of bronze.
The design of the lubrication nipples can also differ, with later models having the spring-plate fixed with a screw.
OEM numbers (for comparisons):
S.14564 (PIAGGIO)
S.14564 (MOTOVESPA)