Knife Thread Insert, System of Measurement Inch, Insert Diameter 3/8 in, Overall Length 3/4 in, Internal Thread Size 1/4 In.-20, Thread Direction Right Hand, Thread Type Coarse, Material Brass, Material Grade/Class C3604, Finish Plain, Drive Type Slotted, Drill Bit Size 25/64 in, Compatible Material Wood, Minimum Material Thickness 19/32 in, Maximum Hole Diameter 0.391 in, Minimum Installation Depth 17/32 in, Tensile Strength 49,000 psi, Package Quantity 10