M 20 thread size July 8, 2019 16 32 64 128 M20 thread size M20 thread size in inches M20 thread size in mm M20 thread size chart M20 thread drill size M20 thread rolling size M20 bolt thread size M20 thread pitch size M20 sewing thread size M20 x 1.5 thread size M20 fine thread drill size M20 fine thread size M20 thread spanner size