I would be very careful buying an assortment of bolts in bulk unless you know what you are getting. Many of the cheap assortments are just a grade 2 bolt. I would nerver use less then a grade 5 bolt and prefferably a grade 8 bolt. Also make sure your nuts and washers match the grade of the bolt you are buying.
Just for what it is worth.
Jim

Last edited by J M; 01/02/2012 6:17 AM.