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bolt sizes

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69tr

Jedi Trainee
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Does anyone have a source to find the correct bolt sizes for the different components. I had all of my bolts bagged and tagged but in the process of going through everything some of the bags split and spilled the contents in the bottom of the box.

I know that probably 90 percent are 5/16 SAE but the lengths are a problem. If I don't get a source I am going to measure the depth of the holes and match them up that way.

Sometimes I think I will sell all of my tools.
 
IF the particular bolt (nut, washer) was an "off the shelf" item and not something specifically engineered by/for Triumph, you can use a spare parts catalog such as this one from TRF to get a part number that will read something like "HU807"; with that information, go to an online Standard-Triumph Hardware Catalogue such as this one in .PDF or this one from Canley Classics in HTML to decode the part number. Simple once you get the hang of it!

Note: I should add that any such hardware with a regular six-digit Triumph part number is a specialized part, such as a peculiar shouldered bolt for a top frame, and might not be easily matched with or replaced by "normal" hardware.
 
What I do when I dealing with a engine that is somewhat new to me, or something I don't alot, like the TR6 engine I just finished a couple f weeks ago, is record all my common bolt sizes and their locations, then save any unique fasters for cleaning and reuse, all comon fastners get replaced with new stuff, I mostly use grade 8, no, not every application like oil pan or timing cover justifies a grade 8 fastner, I just prefer their gold zinc plating vs grade 3's white zinc plating, I think it looks better, and on my engine rebuilds I paint all engine components spearately to add the detail of all bolt and fastners going back on the engine, I believe this give the engine a much greater look of detail than just painting the entire engine after it is assembled. Hope this helps.
 
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