They will most likely work for all your purposes unless you plan on attaching magnets to them. They are not just "steel". Maybe stainless steel? I was going to attach them to a wooden table to attach magnetic hooks, but these panels are not magnetic. Would give 5 stars if they mentioned it's not pure steel (like stainless steel, nickel alloy steel etc.).
Stainless Steel Bracket Shelves: Industrial Hanging Hardware
8 Review
Stainless Steel π© Fastener Hardware by BIGTEDDY
9 Review
π© Enhanced Durability and Stability: Outside Joining Aluminum Profile Bracket
8 Review
πͺ Enhance Stability and Aesthetics with Alamic Corner Stainless Bracket Braces
9 Review
π Marinco 6365CRN Locking Plug 250V: Secure and Reliable Power Connection Solution
9 Review
π Enhance your Woodworking Projects with KREG P PIN Solid Wood Pocket Hole Plugs
8 Review
High-Quality White Plastic Flush Type Plugs for Industrial Hardware Applications
9 Review
WIDGETCO White Hole Plugs
9 Review