This size is mainly used on the carb rails [the brackets that link the banks of carbs together]

The exact same external JIS head screws used on Japanese carbs. Comes with a captive spring washer. Bright zinc plated Made in Japan, OEM quality. Sold per 4 [or per carb] so 4 of this listing needed per 4 cylinder bank of carbs

 Fits Keihin and Mikuni carbs

When measuring ANY screw/bolt/fastner of any sort always dis-regard the head
 Measurement is always diameter x length of the threaded part UP TO the base of the head
 You also dis-regard the spring washer [even if captive and can not be removed]

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