Bolt is 1 3/4" under head x 5/8" UNF thread. Triumph & BSA bolt. Sold as a pair. OEM part number 14-0234.
TRIUMPH BSA HEX BOLT UNF 5/16" X 24 TPI X 5/8" 14-0113 'NEW' UK MADE
14-0114 TRIUMPH BSA HEX BOLT UNF 5/16" X 24 TPI X 3/4" 'NEW' UK MADE x2
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