Product Description Specifications EPDM Pull Plug; Major Dia: 0.275 IN. 7 mm; Minor Dia: 0.13 IN. 3.3 mm; Length: 0.95 IN 24.1 mm; Hole thread: 5/16-18THD; Box Qty: 500 Max Temperature: 450° Major Diameter: 0.275 inch Metric Major Diameter: 7 mm Minor Diameter: 0.13 inch Metric Minor Diameter: 3.3 mm Material: EPDM Color: Black