Knife Thread Insert System of Measurement Inch Insert Diameter 1/2 in Overall Length 5/8 in Internal Thread Size 5/16 In.-24 Thread Direction Right Hand Thread Type Fine Material Stainless Steel Material Grade/Class 18-8 Finish Plain Drive Type Slotted Drill Bit Size 33/64 in Compatible Material Wood Minimum Material Thickness 25/32 in Maximum Hole Diameter 0.516 in Compatible with Manufacturer Model Number DT-524 Installation Method Drive Tool Screwdriver