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UNF

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  • Hexagon High Tensile Bolts - UNF BZP
    BS 1768

    Hexagon High Tensile Bolts - UNF BZP

  • Hexagon High Tensile Bolts - UNF Self Colour
    BS 1768

    Hexagon High Tensile Bolts - UNF Self Colour

2 Item(s)

per page

A UNF (Unified National Fine) thread bolt of any given size will be equivalent a UNC bolt of the same size, but with a higher TPI. The fine pitch has greater resistance to being loosened by vibration and the smaller lead angle allows for finer tension adjustment. As such, it is often specified in vehicles and aerospace, especially if manufactured in North America, as most other regions of the world have transitioned to the ISO metric thread standard. UNF fasteners are sized in imperial units, similar to BSF fasteners, but the two are differentiated by the angle of the thread profile. Our range of UNF hex setscrews covers most engineering applications. We also offer UNF hexagon full nuts, threaded bar, hex bolts and socket cap screws.