QualCast Expansion Plugs are produced from the highest quality steel in a wide variety of cup designs. For marine, performance, or heavy-duty applications we recommend brass or stainless-steel materials. We carry standard cup, shallow cup, and concave cup in all three materials, as well as in metric sizes.

Find individual specifications in the listings below.

NOTE: QualCast products ship directly from the QualCast warehouse to your door. Please allow additional time for processing and delivery.

NOTE: If a product is IN STOCK – quantities may be ordered as needed (meaning in singles or however many quantities you need.

If a product is NOT IN STOCK a minimum order quantity of 100 pieces will be applied.

Stock on these items is updated weekly, so quantities may fluctuate. Please call if there are any questions, or concerns.