BSA 2 Gallon Steel Gas Tank Mounting Bolt (1) - 21-1993 Shield M Part number is 57-0730

M Part number is 57-0730

then you will need this Correct Mounting Clip Set

Intake specs

Fits all Amal Concentric carbs both new production and original types from the 624

BSA 2 Gallon Steel Gas Tank Mounting Bolt (1) - 21-1993 Shield M Part number is 57-0730*New!* Top Quality English Made BSA Unit Twins Center Gas Tank Mounting Bolt. With this Part there is no need to go to the "Hardware Store" and Modifying a Bolt to work! Just install and off you go! Bolt Measures 5 16" X 4" X 24 TPI (UNF)! Fits BSA Unit Twins (Lightning, Thunderbolt & Royal Star) for the year of 1970 with the Export (USA) Market Small Steel "2 Gallon" Tank only. Please refer to your parts catalog for proper fitment. *****Please note