Shaw Expandable Plugs are simple tools that are used in a variety of applications. In fact, new applications are always being found for this versatile and popular product. Snap-tite Expandable Rubber Plugs over one inch, feature brass cams and plated steel hardware. Snap-Tite Expanding Plugs under one inch feature stainless steel hardware with a brass cam. Snap-Tite Expansion Plugs are useful for easy in and out operations such as plating or painting lines in industrial plants or low pressure seals for general maintenance or repair. ISO 9001/2000 certified.