1/2” UNC Nyloc Nut, Bright Zinc Plated 1/2 UNC Nyloc nut with a nylon insert that provides a locking action preventing the nut from loosening due to vibration. The nylon insert also creates a seal against the ingress of liquids making this hex nut a versatile choice. When installed the thread from the fixing cuts into the nylon insert for a tighter hold which sees them used where vibration and movement can be a concern. A versatile UNC hex nut Manufactured with a (UNC) unified coarse thread and in grade 6 steel with a bright zinc plating (BZP). Used by both DIY enthusiasts and professionals alike across numerous industries including automotive, aerospace, machinery, and general construction. 1/2 UNC Nyloc Nut Specification Diameter (TD): 1/2” UNC Nut width / socket size (SS): 0.75” Nut height (NH): 0.60” max - (NH1): 0.46” min Pitch: 13 threads per inch Material: Grade 6 steel Finish: Bright zinc plated (BZP) Insert Material: Nylon Technical Specification Thread Diameter (TD) 1/2” UNC Thread Pitch (TP) 13 threads per inch Nut Height (NH) 0.60” max - (NH1): 0.46” min Socket Size (SS) 0.75” Material Grade 6 steel