Specification: Thread Size: M8 x 1.25mm ;Thread Type: UNC ; Width: 14mm/0.55"; Height: 10mm/0.39";Material: Carbon steel;Grade: 4.8.. Application: Used for pipe furniture, tables and chairs, shelves, vehicles, trolley casters and other threaded connection.. 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.. Package Content: 25 Pcs x Square Weld Nut. Advantages: Flat solder joints, steel ,good weldability, thread size accuracy..
