https://www.lowes.com/pd/Cabentry-Brand-Wood-Screws-Flat-Head-with-Nibs-Phillips-Square-Drive-8-1-1-4-Inch-Deep-Thread-Type-17-Point-Zinc-Finish/8292789
Cabentry 1000 Count Wood Screws Flat Head with Nibs Quadrex Drive #8 1 1/4 Inch Deep Thread Sharp...
https://www.aigos.cz/vrut-quadrex-3525-1000ks
VRUT QUADREX 3.5*25 (1000ks) | AIGOS, s.r.o.
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https://quadrexcorp.com/
Leading Manufactuer of Gas Chromatography Equipments and Gas Generator – Quadrex
Since 1976, Quadrex Corporation has been a privately owned Capillary Columns, GC equipment, GC column manufacturer and supplier of GC-related hardware and...
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https://megomuseum.com/community/forum/general-discussion/auction-watch/2108681-hakes-kenner-super-powers-quadrex
Hakes KENNER SUPER POWERS QUADREX - Mego Talk
I cannot believe this is up for auction and I wish I had the money because I would have gone up to $5000. Lot #174: KENNER SUPER POWERS (1986-87) QUADREX...
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