Product Description Specifications EPDM Tapered Plug: A: 0.625 IN 15.9 mm; B: 0.437 IN 11.1 mm; Length: 0.813 IN 20.7 mm; Box Qty: 250 Max Temperature: 450° Major Diameter: 0.625 inch Metric Major Diameter: 15.9 mm Length: 0.813 inch Minor Diameter: 0.437 inch Metric Minor Diameter: 11.1 mm Material: EPDM Color: Black