McMaster 6652A22 Automatic Return Hanging Retractor with Cable Lock, 1 to 15 lb. Capacity G1540BA Thermally Insulating Yes Thermally Insulating Yes Pipe Connection Type Threaded on Both Ends Pipe Fitting Material Red Brass Pipe Type Pipe Nipple Pipe Schedule 40 Material Pipe Red Brass Basic Pipe Fitting Material Metal Pipe Thread Type MNPT x MNPT Basic Pipe Fitting Shape Nipple Item Red Brass Pipe Nipple Material (Pipe) Red Brass Specific Pipe Fitting Shape Nipple Pipe Fitting Schedule Class Schedule 40 Pipe Fitting Connection Type MNPT x MNPT Temp RoHS 3 (2015 863 EU) Compliant Cable lock allows you to lock the cable at set positions to avoid accidental adjustments