Except Grade 2,5,8 and some specialty products are just like that at TSC. It's awesome. It lets me have all my standard hardware on hand without a huge investment...saved my **** tonight in fact.
So, who does fasteners by the pound in metric? Not buy a 5lb box, I mean just like the cashews and peanuts...
It's hard to find any fasteners sold by the pound these days and nearly impossible to find them in metric.
By stocking large amounts of fasteners, the onus is on the store or chain to keep things in stock and that becomes a cost and inventory nightmare if not managed correctly nevermind the cost and profit margins. Most places don;t want to touch that unless selling B2B and in BIG amounts.
I;ve been involved with a mfgr. where monthly we buy metric fasteners in boxes of 2000 for each sized bolt, nut and washer from M6 thru M12 and a few odd sizes for a production floor.
Keep in mind that for each size I mentioned above (M6, M8, M10, M12) we keep every length for each from 10mm up to 45mm in 5mm increments. That's 2000 pieces min. for each size and length mind you.
And then there are a few stocked in fine thread sizes too.
The best price is buying that way thru a local distributor who buys directly from the fastener mfgr. and that's a ****-ton of hardware.
Without buying in that amount there are few places willing to give you a good price without buying by the 100's or 1000's. Maybe as more metric fasteners are used (especially in vehicles), the access to better prices will be easier.