Product Info Catalog Hardware Door Door Repair 3/16 x 3/16-Inch Aluminum Corner Keys, 20-Pack 3/16 x 3/16-Inch Aluminum Corner Keys, 20-Pack 3/16 x 3/16-Inch Aluminum Corner Keys, 20-Pack Request a Quote UPC: 49793150301 Manufacturer: Prime Line Products SKU: 767202 Model Number: PL 15030 20 Pack, Aluminum, 3/16" x 3/16" Corner Key.