HA100B - for flanged shelves 4-1/4" (ID) , plated to prevent rust Sold individually (right side item in photo)
HA120B – for straight sided shelves 4-1/4"(ID), plated to prevent rust 8.697-102.0 Sold individually (far left item in photo)
HA130B 2-1/2" wand/utility hook for chemical shelves. Vinyl coated to avoid scratching and rust. 8.697-103.0 (Middle item in photo)
(use 2 to hang wand) Sold individually
They are ¼" steel rod and shaped to assure a snug, no-rock fit to the shelf.