*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 that this will not fit BSA A50 & A65 Models with the "Fiberglass" or the Large 4 Gallon "UK" Tanks! You must have the Correct tank for this Bolt to work!*****
•Made in England
•O.E.M Part number is 21-1993