( ASME B 18.2.2 UNC-UNF THREADED NUTS )
For the 1/2-13 and 1/2-20 designations, the first is thick and the second is thin. Therefore, it is expressed as 1/2-13UNC and 1/2-20UNF. In this case, UNC is called Thick thread while UNF means fine thread.
It is produced in 6 – 8 – 10 – 12 quality and provides safe usage service with its size and quality structuring in every sector where fasteners are used.
Upon request, surface coating applications such as electro galvanization, zinc nickel, phosphate (black), hot dip galvanization and dacromet/geomet are made.
