Finsert Insert Type Finsert System of Measurement Inch Overall Length 9/16 in Insert Diameter 15/32 in Thread Size 5/16 In.-18 Thread Direction Right Hand Thread Type Coarse Material Brass Material Grade/Class C3604 Finish Plain Flange Style Al Ras Body Texture Smooth Number of Fins 3 Compatible Material Plastic Wood Drill Bit Size 15/32 in Minimum Material Thickness 5/8 in Maximum Hole Diameter 0.469 in Manufacturer Location Made in USA Flange Diameter 0.493 in