Product Description Specifications EPDM Pull Plug: Major Dia: 0.64 IN. 16.3 mm; Minor Dia: 0.375 IN. 9.5 mm; Length: 1 IN 25.4 mm; Hole thread: 5/8; Box Qty: 100 Max Temperature: 450° Major Diameter: 0.64 inch Metric Major Diameter: 16.3 mm Minor Diameter: 0.375 inch Metric Minor Diameter: 9.5 mm Material: EPDM Color: Black