Bolt grade question

[wacho4]

Seems like your question has been thuroughly answered. But for future reference, here is Bill Ansel's (BillaVista of Pirate4x4 fame) faster tech article - it's more than you ever wanted to know about nuts and bolts: http://www.pirate4x4.com/tech/billavista/NutsandBolts/index.html

Yes it has been very answered. In fact I seem to have started quite an argument.

Thanks for the additional info, same to everyone else