http://www.unbrako.com/facts.htm

Very nicely presented information about high strength fasteners,
clamping force, etc.

Great bedtime reading.

I stumbled upon this website because I acquired a pallet of Unbrako
fasteners and wanted to look them up. It included 464 1"-8 by 5" long
socket head screws.

Slightly smaller 1"-8 by 4" long fasteners are shown he

http://www.jlindustrial.com/USC-1485...Y/product.html

Both articles are very enlightening and highly recommended.

i