Threads.

[Max black]

Im needing the top bolts in forks that hold shocks. Are they 7/16 unc or whitworth

[iansoady]

BSF. I stand to be corrected but doubt there are any UNC threads on a Greeves.

[Phil Hyde]

Max, generally speaking neither. 3/8” BSF more likely. Certainly original equipment fitting

[Max black]

They measure 9.5mm. Whatever that equates to.

[johnrunnacles]

3/8" near-as-dammit, Max. Thread should be BSF, as stated.

[Max black]

Yes just converted on google. 9.5mm converts to ⅜ so youre right. Thought they were unc, so thanks pal.