The Project Pad

Anyone have a source for these?
16x1.5x77mm Shouldered bolt

They are 17$ a piece....
I found 16x1.5x72mm Shouldered bolt for 5$. Will 5mm less cause any problems?

How many do you need - I think have atleast 6 sitting somewhere i'd sell to you for very very cheap.

I wouldn't mind having four since i'm taking all the axles off for coilovers
PM with a price.
Also, do you know the hex size needed for the non hex head cap screw bolts, the ones with the internal hex?
Thanks,
Nick