Specification: Thread Size: 3/8-16 ; Hex Width: 16.8mm/0.66"; Height: 7.8mm/0.3";Material: Carbon steel.. Application: Used for pipe furniture, tables and chairs, shelves, vehicles, trolley casters, and other threaded connections.. Feature:3 Projections for Quick, Strong Welds.Hexagonal Shape for High Torque Resistance.. Steps: First clean the welding surface, using sandpaper or steel brush to remove the joint oxide. Second, welding a little bit and adjust the verticality of the thread. Finally, solder all the solder joints.. Advantages: Flat solder joints, steel, good weldability, thread size accuracy..
