Walthers Nylon Hex Nuts are perfect for your models and for any other model or device that needs miniature insulating fasteners. Walthers hardware offers matching screws, as well as washers, hex wrenches, taps and other miniature hardware and tools in standard small sizes. Nylon Hex Nuts are part of the selection of Walthers miniature hardware and tools. Machine and wood screws may be brass or brass plated.