Press Insert Insert Type Knurled Press Insert System of Measurement Inch Overall Length 1/4 in Insert Diameter 13/64 in Thread Size #6-32 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 3/16 in Minimum Material Thickness 5/16 in Maximum Hole Diameter 0.188 in Manufacturer Location Made in USA