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8 & 10 cyl Bristol cars Type 407 onwards - restoration, repair, maintenance etc |
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![]() The 412 (no reason to think that it is different from the 411) wheel nut
thread is 9/16 BSF (British Standard Fine) 16 threads per inch. This is from memory and postings some years ago. Bit frosty outside but I will recheck tomorrow. John P |