Press Insert Insert Type Knurled Press Insert System of Measurement Metric Overall Length 9.525 mm Insert Diameter 6.6548 mm Thread Size M5-0.80 Thread Direction Right Hand Thread Type Coarse Material Stainless Steel Material Grade/Class 18-8 Finish Plain Flange Style Flanged Body Texture Knurled Number of Fins Not Applicable Compatible Material Plastic Drill Bit Size 1/4 in Minimum Material Thickness 9 17/32 mm Maximum Hole Diameter 6.35 mm Flange Diameter 6.6548 mm