Press Insert Insert Type Knurled Press Insert System of Measurement Metric Overall Length 12.7 mm Insert Diameter 8.2804 mm Thread Size M6-1.00 Thread Direction Right Hand Thread Type Coarse Material Stainless Steel Material Grade/Class 18-8 Finish Plain Flange Style Flush Body Texture Knurled Number of Fins Not Applicable Compatible Material Plastic Drill Bit Size 5/16 in Minimum Material Thickness 11 15/16 mm Maximum Hole Diameter 7.9502 mm Flange Diameter 8.2804 mm