7/8-14 Heavy Wall Right Hand Thread Tube Insert for 1 1/2 ID Tubing – Barnes 4WD
Metal Threaded Star Type Insert for 1" OD Round Tubing - Threaded Tubing Inserts Threaded Tube Inserts Round Tubing Inserts Chair Leg Threaded Star Tube Insert Threaded Inserts 3/8-16 (4): Amazon.com: Industrial
GN 992.5 Stainless Steel Threaded Tube Ends, Round or Square Type | JW Winco Standard Parts
1.5" -12 TUBE INSERT FOR 2 INCH ID TUBING – CATVOS