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

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

    Tapered Heat-Set Threaded Inserts For Plastic

    Image of Product. Front orientation. Threaded Inserts. Tapered Heat-Set Threaded Inserts For Plastic.
    Tapered at one end, these inserts are easier to align in a hole during installation than straight inserts. Use a drill bit to create a straight hole, then taper the top half. Once installed, heat the insert with a soldering tip to melt the surrounding plastic.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these inserts resist rust and mild chemicals. Since they’re lead-free, they can be safely recycled.
    Inserts
    Soldering
    Installation Tips
    Extraction Tips
    Thread Size
    Installed
    Lg.
    Drill Bit
    Size
    For Max.
    Hole Dia.
    For Hole
    Taper Angle
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    Each
    Each
    18-8 Stainless Steel
    2-56
    0.115"3 mm
    3 mmASTM A380100000000000000000000000000000000000000000000
    2-56
    0.188"36 Ga.
    0.107"ASTM A380100000000000000000000000000000000000000000
    4-40
    0.135"24 Ga.
    0.152"ASTM A380100000000000000000000000000000000000000000
    4-40
    0.219"9/64"
    0.141"ASTM A380100000000000000000000000000000000000000000
    6-32
    0.150"8 Ga.
    0.199"ASTM A380100000000000000000000000000000000000000000
    6-32
    0.250"13 Ga.
    0.185"ASTM A380100000000000000000000000000000000000000000
    8-32
    0.185"2 Ga.
    0.221"ASTM A380100000000000000000000000000000000000000000
    8-32
    0.312"5 Ga.
    0.208"ASTM A380100000000000000000000000000000000000000000
    10-24
    0.225"H
    0.266"ASTM A3801000000000000000000000000000000000000000000
    10-32
    0.225"H
    0.266"ASTM A3801000000000000000000000000000000000000000000
    10-32
    0.375"D
    0.246"ASTM A3801000000000000000000000000000000000000000000
    1/4"-20
    0.300"S
    0.348"ASTM A38050000000000000000000000000000000000000000
    1/4"-20
    0.500"O
    0.321"ASTM A380500000000000000000000000000000000000000000
    1/4"-28
    0.500"O
    0.321"ASTM A380500000000000000000000000000000000000000000
    5/16"-18
    0.335"27/64"
    0.422"ASTM A380100000000000000000000000000000000000000000
    5/16"-18
    0.562"X
    0.397"ASTM A380100000000000000000000000000000000000000000
    3/8"-16
    0.625"31/64"
    0.484"ASTM A380100000000000000000000000000000000000000000
    M2 x 0.4 mm2.92 mm3 mm
    3 mmASTM A3801000000000000000000000000000———0
    M2.5 x 0.45 mm3.43 mm24 Ga.
    0.153"ASTM A380100000000000000000000000000000000000000000
    M2.5 x 0.45 mm5.56 mm9/64"
    0.141"ASTM A380100000000000000000000000000000000000000000
    M3 x 0.5 mm3.43 mm24 Ga.
    0.152"ASTM A3802500000000000000000000000000000000000000000
    M3 x 0.5 mm3.81 mm8 Ga.
    0.217"ASTM A380100000000000000000000000000000000000000000
    M3 x 0.5 mm5.56 mm9/64"
    0.141"ASTM A380100000000000000000000000000000000000000000
    M3 x 0.5 mm6.35 mm13 Ga.
    0.185"ASTM A380100000000000000000000000000000000000000000
    M3.5 x 0.6 mm6.35 mm13 Ga.
    0.185"ASTM A380100000000000000000000000000000000000000000
    M4 x 0.7 mm4.7 mm2 Ga.
    0.226"ASTM A380100000000000000000000000000000000000000000
    M4 x 0.7 mm7.92 mm5 Ga.
    0.208"ASTM A380100000000000000000000000000000000000000000
    M5 x 0.8 mm5.72 mmH
    0.267"ASTM A380100000000000000000000000000000000000000000
    M5 x 0.8 mm6.71 mmN
    0.303"ASTM A3801000000000000000000000000000000000000000000
    M5 x 0.8 mm9.53 mmD
    0.246"ASTM A3801000000000000000000000000000000000000000000
    M5 x 0.8 mm11.1 mmJ
    0.278"ASTM A38050000000000000000000000000000000000000000
    M6 x 1 mm7.62 mmS
    0.349"ASTM A38050000000000000000000000000000000000000000
    M6 x 1 mm12.7 mmO
    0.321"ASTM A38050000000000000000000000000000000000000000
    M8 x 1.25 mm8.51 mm27/64"
    0.431"ASTM A380100000000000000000000000000000000000000000
    M8 x 1.25 mm14.27 mmX
    0.401"ASTM A380100000000000000000000000000000000000000000
     
    Soldering Irons
    back to top