Product Description Specifications EPDM Pull Plug: Major Dia: 0.35 IN. 8.9 mm; Minor Dia: 0.157 IN. 4 mm; Length: 0.9 IN 22.9 mm; Hole thread: 11/32; Box Qty: 500 Max Temperature: 450° Major Diameter: 0.35 inch Metric Major Diameter: 8.9 mm Minor Diameter: 0.157 inch Metric Minor Diameter: 4 mm Material: EPDM Color: Black