Anyone know how too........

[Budgie]

Anyone know how to identify high tensile bolts?

I ordered some 3/8 UNF bolts for the propshaft but I'm not sure they have sent me the high tensile ones that I asked for.

On the hex end is, something like, L.O.G.O" which I assume is to do with the manufacturer, and then "8.8".  :?

Any ideas?

[Skywalker]

Grade 8.8 is a high strength bolts, standard is /was 4.6

Dave

[muddyweb]

I'm not sure what the threshold for "high" tensile is... but a bolt with a rating of 8.8 has a tensile strength of 800 N/mm2 and a yield strength of 640 N/mm2.

I would say that an 8.8 bolt will be strong enough for a propshaft.

[Budgie]

Thanks chaps,

I'll get them on there then.  :D