McMaster-Carr logo
    Forward
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Print
    How can we improve?
    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 mm8°ASTM A3801097163A1320000092160A3110000092160A201000000
    2-56
    		0.188"36 Ga.
    		0.107"8°ASTM A3801097163A133000092160A311000092160A20100000
    4-40
    		0.135"24 Ga.
    		0.152"8°ASTM A3801097163A137000092160A315000092160A20300000
    4-40
    		0.219"9/64"
    		0.141"8°ASTM A3801097163A138000092160A315000092160A20300000
    6-32
    		0.150"8 Ga.
    		0.199"8°ASTM A3801097163A142000092160A319000092160A20500000
    6-32
    		0.250"13 Ga.
    		0.185"8°ASTM A3801097163A143000092160A319000092160A20500000
    8-32
    		0.185"2 Ga.
    		0.221"8°ASTM A3801097163A144000092160A323000092160A20700000
    8-32
    		0.312"5 Ga.
    		0.208"8°ASTM A3801097163A145000092160A323000092160A20700000
    10-24
    		0.225"H
    		0.266"8°ASTM A3801097163A1290000092160A327000092160A20900000
    10-32
    		0.225"H
    		0.266"8°ASTM A3801097163A1300000092160A327000092160A21100000
    10-32
    		0.375"D
    		0.246"8°ASTM A3801097163A1310000092160A327000092160A21100000
    1/4"-20
    		0.300"S
    		0.348"8°ASTM A380597163A134000092160A331000092160A21300000
    1/4"-20
    		0.500"O
    		0.321"8°ASTM A380597163A1350000092160A331000092160A21300000
    1/4"-28
    		0.500"O
    		0.321"8°ASTM A380597163A1360000092160A331000092160A10700000
    5/16"-18
    		0.335"27/64"
    		0.422"8°ASTM A380197163A139000092160A3080000092160A10500000
    5/16"-18
    		0.562"X
    		0.397"8°ASTM A380197163A140000092160A3080000092160A10500000
    3/8"-16
    		0.625"31/64"
    		0.484"8°ASTM A380197163A141000092160A3090000092160A10400000
    M2 x 0.4 mm2.92 mm3 mm
    		3 mm8°ASTM A3801097163A146000092160A3110000———0
    M2.5 x 0.45 mm3.43 mm24 Ga.
    		0.153"8°ASTM A3801097163A147000092160A315000092160A22500000
    M2.5 x 0.45 mm5.56 mm9/64"
    		0.141"8°ASTM A3801097163A148000092160A315000092160A22500000
    M3 x 0.5 mm3.43 mm24 Ga.
    		0.152"8°ASTM A3802597163A1490000092160A315000092160A22700000
    M3 x 0.5 mm3.81 mm8 Ga.
    		0.217"8°ASTM A3801097163A160000092160A315000092160A22700000
    M3 x 0.5 mm5.56 mm9/64"
    		0.141"8°ASTM A3801097163A150000092160A315000092160A22700000
    M3 x 0.5 mm6.35 mm13 Ga.
    		0.185"8°ASTM A3801097163A161000092160A315000092160A22700000
    M3.5 x 0.6 mm6.35 mm13 Ga.
    		0.185"8°ASTM A3801097163A151000092160A319000092160A10100000
    M4 x 0.7 mm4.7 mm2 Ga.
    		0.226"8°ASTM A3801097163A152000092160A323000092160A22900000
    M4 x 0.7 mm7.92 mm5 Ga.
    		0.208"8°ASTM A3801097163A153000092160A323000092160A22900000
    M5 x 0.8 mm5.72 mmH
    		0.267"8°ASTM A3801097163A1540000092160A327000092160A23100000
    M5 x 0.8 mm6.71 mmN
    		0.303"8°ASTM A3801097163A1620000092160A327000092160A23100000
    M5 x 0.8 mm9.53 mmD
    		0.246"8°ASTM A3801097163A1550000092160A327000092160A23100000
    M5 x 0.8 mm11.1 mmJ
    		0.278"8°ASTM A380597163A163000092160A327000092160A23100000
    M6 x 1 mm7.62 mmS
    		0.349"8°ASTM A380597163A156000092160A327000092160A23300000
    M6 x 1 mm12.7 mmO
    		0.321"8°ASTM A380597163A157000092160A327000092160A23300000
    M8 x 1.25 mm8.51 mm27/64"
    		0.431"8°ASTM A380197163A158000092160A3080000092160A10200000
    M8 x 1.25 mm14.27 mmX
    		0.401"8°ASTM A380197163A159000092160A3080000092160A10200000
     
    Soldering Irons
    Each
    Economy Soldering Iron, 60W7662A696000000
    back to top