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    11 Products

    Precision-Adjust Ball-Tip Thumb Screws

    Image of Product. Back orientation. Thumb Screws. Precision-Adjust Ball-Tip Thumb Screws.
    Make precise adjustments where tight tolerances are critical. With ultra-fine threads, these thumb screws are often found on measuring devices and photonic equipment. The rolling ball tip maintains contact and swivels 360° so you can make adjustments without loosening the screw. The narrow width of the head allows these thumb screws to fit in spaces with limited clearance. The knurled texture creates extra grip as you twist. These thumb screws combine the strength of stainless steel with a lightweight plastic head that won’t rust.
    Length is measured from under the head.
    18-8 Stainless Steel with Acetal Head—With a stainless steel body and an acetal head, these screws resist moisture and are chemical resistant.
    Head
    Lg.
    Dia.
    Ht.
    Color
    Tip
    Dia.
    Threading
    Tensile Strength,
    psi
    Each
    18-8 Stainless Steel with Acetal Head
     
    1/4"-80
    3/4"1/2"3/4"Black3/16"Fully Threaded60,000000000000000000
    1"1/2"3/4"Black3/16"Fully Threaded60,0000000000000000
    1 1/4"1/2"3/4"Black3/16"Fully Threaded60,0000000000000000
    1 1/2"1/2"3/4"Black3/16"Fully Threaded60,0000000000000000
    2"1/2"3/4"Black3/16"Fully Threaded60,00000000000000000
    3"1/2"3/4"Black3/16"Fully Threaded60,00000000000000000
    3 1/2"1/2"3/4"Black3/16"Fully Threaded60,00000000000000000
     
    Threaded Inserts
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