McMaster-Carr logo
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Comments
    E-mail address (if you would like a response)
    20 Products
    About Threaded Inserts
    industrial info icon

    Choose the right threaded insert for your application and learn how to install it securely.

    Strong-Grip Screw-to-Expand Press-In Threaded Inserts for Plastic

    Image of Product. Bottom orientation. Threaded Inserts. Strong-Grip Screw-to-Expand Press-In Threaded Inserts for Plastic.
    For a more secure hold than other screw-to-expand inserts, fins cut into the surrounding plastic. Press or hammer these inserts into a drilled hole and then install a screw to expand the fins.
    Brass—Conductive and nonmagnetic, these inserts are useful for electrical applications. They resist moisture but aren't as strong as steel inserts.
    Thread Size
    Installed
    Lg.
    Drill Bit
    Size
    For Max.
    Hole Dia.
    No. of
    Fins
    Pkg.
    Qty.
    Pkg.
    Standard Profile
     
    Brass
    4-40
    0.188"5 Ga.
    0.206"12590363A101000000
    4-40
    0.375"5 Ga.
    0.206"22590363A10200000
    6-32
    0.188"5 Ga.
    0.206"12590363A0170000
    6-32
    0.375"5 Ga.
    0.206"22590363A04400000
    8-32
    0.188"15/64"
    0.234"12590363A0180000
    8-32
    0.375"15/64"
    0.234"22590363A04500000
    10-24
    0.375"G
    0.261"22590363A04700000
    10-32
    0.188"G
    0.261"12590363A01900000
    10-32
    0.375"G
    0.261"22590363A04600000
    10-32
    0.563"11/32"
    0.344"31090363A0290000
    1/4"-20
    0.375"21/64"
    0.328"22590363A02800000
    1/4"-20
    0.563"13/32"
    0.406"31090363A03400000
    5/16"-18
    0.563"15/32"
    0.469"3590363A0350000
    M2 x 0.4 mm4 mm3.2 mm
    3.2 mm41090363A1100000
    M2.5 x 0.45 mm4.8 mm4 mm
    4 mm41090363A1200000
    M3 x 0.5 mm4.8 mm4 mm
    4 mm51090363A1300000
    M4 x 0.7 mm8 mm5.6 mm
    5.6 mm51090363A1400000
    M5 x 0.8 mm9.5 mm6.6 mm
    6.6 mm22590363A10300000
    M6 x 1 mm9.5 mm8.3 mm
    8.3 mm22590363A10400000
    M8 x 1.25 mm14.3 mm11.9 mm
    11.9 mm3590363A1050000
     
    back to top