Onward 1/8 in. Metal Locking Pegboard Hook Assortment Kit (47-Pack) 23793R - The Home Depot
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ScanLock™ Peg Hook Security Locks
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Amazon.com: Peg Hook Stop Lock for Prevent The Sweep Theft of Displayed Products on A Wire Peg, Plastic Red 6mm Security Lock, Retail Shop Anti-Theft Display Slatwall and Pegboard Hook Lock (Red