Originally Posted by Dsanduril
.....304 is stronger and more wear resistant than 316, frequently used for fasteners......
I've used 304 for all of the fasteners on both boats. I think when I first started buying
304 might of been all that Albany County Fasteners carried at that point so I might not of know better.
I think I'll still stay with them. The Mac was used for 3 months on the water
and will probably spend the rest of her life with us on fresh water
lakes in the west with maybe a trip to the Sea of Cortez
will be in the boatyard inland on stands for 6 to 9 months of the year and I have a lot of aluminum
on her that will oxidize. If we had her in the water all of the time I might then consider 316.
It looks like the boltdepot is probably selling 304 and no 316, but I'd call and see. I guess from reading more, the above link and this one...
Differences Between 18-8, 304, and 316 Stainless Steel « Blog Archive « Ask the Expert
...that the 18-8 doesn't necessarily even mean that it is 304. There pricing looks to be better than where I bough, but I ran an order through to check shipping
and the shipping was over double what I paid the last time with the flat rate box and I didn't include near as much to the order. I guess it might come down to a toss of the coin,