Product Description Specifications EPDM Pull Plug: Major Dia: 0.225 IN. 5.7 mm; Minor Dia: 0.125 IN. 3.2 mm; Length: 1 IN 25.4 mm; Hole thread: 7/32; Box Qty: 500 Max Temperature: 450° Major Diameter: 0.225 inch Metric Major Diameter: 5.7 mm Minor Diameter: 0.125 inch Material: EPDM Color: Black