Thread Insert Kit Number of Inserts 10 Number of Pieces 12 Insert Diameter 8.3312 mm Insert Length 9.652 mm Internal Thread Size M4-0.70 Thread Direction Right Hand Thread Type Coarse Insert Material Brass Finish Plain Material Grade/Class C3604 Drive Type Slotted Compatible Material Wood Drill Bit Sizes Included 17/64 in Minimum Material Thickness 19 3/64 mm Maximum Hole Diameter 6.7564 mm System of Measurement Metric Manufacturer Location Globally Sourced