Very cool link they have hard to find plastic hardware. I liked the looks of the 3/8" triangle "D"rings for cord pack compression system. 3 point adjustable ring to make a simple height adjustment harness for pack shoulder straps. One sided slick clips and other stuff. Kind of one stop plastic heavy duty hardware store.
For ultra light weight and more recent designs of plastic hardware form ITW /Nexus and hard to find the WSR lineloc buckles, lineloc 3 ladder lock, 3/4" waveloc ladder lock for light weight webbing, Apex hardware, The pack hooks system and last but not least 1/2" Beastee D rings. Chris Zimmer has them at his shop plus he's is member of BPL family turned manufacture because of his craftsmanship and design of backpacks..