Feature: Hexagonal design can be increased the bearing surface when adjusting the fitting with a wrench. Applications: This is mainly used for sealing joints and pipes. Widely used in outdoor gardens, washing machines, air conditioners, water heaters, storage rooms, etc. Material: This Locknut is mainly made of brass, with high strength, corrosion resistance, and high-temperature resistance. Specification: Material: Brass Main Color: Brass tone Thread Size: G1/4 Height: 3mm/0.12" Hex Width: 16mm/0.63" Thread Count (inch): 19 Package Content: 12pcs x Lock Nut with Flange