Prevent forklifts from knocking pallet racks apart—these 90° pins lock horizontal beams in place so you can safely load and unload pallets. To install, slide them into keyholes where beams and columns join. While many pins are only compatible with racks from one manufacturer, these will fit into any rack with keyholes sized between _3/8" and _1/2". Pins have a zinc plating to resist corrosion in wet environments.