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