Yes. Twist-lock plugs feature a special design that allows you to secure the connection, reducing the risk of power loss due to accidental unplugging.
No. Commercial plugs are designed for heavy-duty use, while residential plugs are primarily intended for lower voltage capacities. Hence, using residential plugs may cause injuries or damage in commercial facilities.
Some plugs are available with cords. However, many plugs are sold separately, allowing you to attach them to the suitable cords that meet your unique appliance requirements.