Product Description Specifications EPDM Tapered Plug: A: 0.25 IN 6.4 mm; B: 0.125 IN 3.2 mm; Length: 0.75 IN 19.1 mm; Box Qty: 1000 Max Temperature: 450° Major Diameter: 0.25 inch Metric Major Diameter: 6.4 mm Length: 0.75 inch Minor Diameter: 0.125 inch Material: EPDM Color: Black