#4-40 TPI, 0.144 to 0.159" OD, 0.168" L, Gray, Dry Film Lubricant, 304 Stainless Steel, 4-3/4-Coils, Diamond Knurled, Free Running, Screw Threaded Insert T1185-04CW168 Screw Threaded Insert Type Diamond Knurled, Free Running Nominal Diameter #4 TPI 40...