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Insert(Length L (after insertion) (D = Thread Dia. M):3D)

These products are used for reinforcing female threads. These can be used with damaged female threads or soft materials to enable screws/bolts to be tightened.
In general, coil inserts that have been machined into a coil shape are very common, but we also have a wide lineup that includes "self-tapping inserts", "inserts for resin", "insert nuts", "locking inserts", etc., enabling use to suit various environments or materials.
MISUMI enables spec searches and ordering quantities from just 1 piece. Tools are also sold in addition to the inserts themselves.
[Materials]
Iron, stainless steel, brass, phosphor bronze, Inconel, nitronics
[Size]
M1.4 to M39 are available as well as imperial sizes
[Search Keywords]
Heli-Sert, E-Sert, Sprue, Female Thread

Search by specifying the lower class category

Days to Ship
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  • 1 Day(s) or Less
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  1. 1
Brand
Product Series
CAD
Days to Ship
Screw Dia. M (after insertion)(mm)
Environmentally friendly
Type
Characteristics/Applications
Material
Screw Type
Length L (after insertion) (D = Thread Dia. M)
Application
Notch
Thread Dia. (After inserted), Unified(inch)
Shape
Sales Unit
Cleaning Method

    Thread Inserts

      Dodge Bit Insert (Standard) SB Brass (Cadmium-Free)

        Recoil-Free (mm) SUS304

          Sprue

            Brass Bit Insert (Standard, Double-sided) HSB-Z

              E-Certs

                Brass Bit Insert (Standard Model / Single-Sided Type) HSB

                  Tangless Insert (SUS304)

                    Stainless Steel/Insert Nut Threaded Type / IRU

                      Brass Insert Nut (Screw-In Type) IRB/IRB-C

                        Stainless Steel E-Sert (Unify) (UNC)

                          Stainless Steel Insert Nut, Screw-in (Slotted)/IRU-S

                            E-Sert Fine

                              Nylon Nut Insert / NNI

                                DODGE BET Insert (Standard), Double Sided Chamfer Type, Brass (Cadmium-Free)

                                  Dodge Bit Insert Flange Type  (Brass Cadmium-Free)

                                    Brass Insert Nut (Screw-In Type / Slotted) IRB-SW/-SCW

                                      Sprue (Unified) (UNC)

                                        Dodge Bit Insert Standard SD (Brass Cadmium-Less)

                                          Stainless Steel E-Sert Hemlock-Made

                                            Stainless Steel/Aluminum Insert Nut Threaded Type (Loosening Prevention) / IRU-W

                                              Brass Bit Insert (Flange Type) / HFB

                                                Sprue (Unify) (UNF)

                                                  Lock Sprue

                                                    Stainless Steel Recoil

                                                      Lock Type Sprew

                                                        Brass Insert Nut (Screw-In Type) IRB-W/-CW

                                                          Aluminum Insert Nut (Screw-In Type) IRL-B/IRL-K

                                                            Aluminum Insert Nut (Screw-In Type / Coated With Loosening Prevention Agent) IRL-BW/-KW

                                                              Brass Insert Nut (Screw-In Type / Slotted) IRB-S/IRB-SC

                                                                Stainless Steel Insert Nut, Screw-in (Thread Locker / Slotted) / IRU-SW

                                                                  Brass Dutch Insert (Standard) / HSD

                                                                  Brand

                                                                  MISUMI

                                                                  TOKAI METAL INDUSTRY

                                                                  RECOIL

                                                                  NIPPON SPREW

                                                                  HIROSUGI-KEIKI

                                                                  TSUGAMI

                                                                  HIROSUGI-KEIKI

                                                                  RECOIL

                                                                  HIROSUGI-KEIKI

                                                                  HIROSUGI-KEIKI

                                                                  SUNCO

                                                                  HIROSUGI-KEIKI

                                                                  TSUGAMI

                                                                  HIROSUGI-KEIKI

                                                                  TOKAI METAL INDUSTRY

                                                                  TOKAI METAL INDUSTRY

                                                                  HIROSUGI-KEIKI

                                                                  NIPPON SPREW

                                                                  TOKAI METAL INDUSTRY

                                                                  SUNCO

                                                                  HIROSUGI-KEIKI

                                                                  HIROSUGI-KEIKI

                                                                  NIPPON SPREW

                                                                  NIPPON SPREW

                                                                  SUNCO

                                                                  SUNCO

                                                                  HIROSUGI-KEIKI

                                                                  HIROSUGI-KEIKI

                                                                  HIROSUGI-KEIKI

                                                                  HIROSUGI-KEIKI

                                                                  HIROSUGI-KEIKI

                                                                  HIROSUGI-KEIKI

                                                                  Product Series

                                                                  Thread Inserts

                                                                  Dodge Bit Insert (Standard) SB Brass (Cadmium-Free)【1-4,000 Pieces Per Package】

                                                                  Recoil-Free (mm) SUS304

                                                                  Sprue【1-100 Pieces Per Package】

                                                                  Brass Bit Insert (Standard, Double-sided) HSB-Z

                                                                  E-Certs

                                                                  Brass Bit Insert (Standard Model / Single-Sided Type) HSB

                                                                  Tangless Insert (SUS304)

                                                                  Stainless Steel/Insert Nut Threaded Type / IRU

                                                                  Brass Insert Nut (Screw-In Type) IRB/IRB-C

                                                                  Stainless Steel E-Sert (Unify) (UNC)【100 Pieces Per Package】

                                                                  Stainless Steel Insert Nut, Screw-in (Slotted)/IRU-S

                                                                  E-Sert Fine

                                                                  Nylon Nut Insert / NNI

                                                                  DODGE BET Insert (Standard), Double Sided Chamfer Type, Brass (Cadmium-Free)【800-4,000 Pieces Per Package】

                                                                  Dodge Bit Insert Flange Type (Brass Cadmium-Free)

                                                                  Brass Insert Nut (Screw-In Type / Slotted) IRB-SW/-SCW

                                                                  Sprue (Unified) (UNC)【100 Pieces Per Package】

                                                                  Dodge Bit Insert Standard SD (Brass Cadmium-Less)【1-800 Pieces Per Package】

                                                                  Stainless Steel E-Sert Hemlock-Made【50-100 Pieces Per Package】

                                                                  Stainless Steel/Aluminum Insert Nut Threaded Type (Loosening Prevention) / IRU-W

                                                                  Brass Bit Insert (Flange Type) / HFB

                                                                  Sprue (Unify) (UNF)【100 Pieces Per Package】

                                                                  Lock Sprue【100 Pieces Per Package】

                                                                  Stainless Steel Recoil【100 Pieces Per Package】

                                                                  Lock Type Sprew【100 Pieces Per Package】

                                                                  Brass Insert Nut (Screw-In Type) IRB-W/-CW

                                                                  Aluminum Insert Nut (Screw-In Type) IRL-B/IRL-K

                                                                  Aluminum Insert Nut (Screw-In Type / Coated With Loosening Prevention Agent) IRL-BW/-KW

                                                                  Brass Insert Nut (Screw-In Type / Slotted) IRB-S/IRB-SC

                                                                  Stainless Steel Insert Nut, Screw-in (Thread Locker / Slotted) / IRU-SW

                                                                  Brass Dutch Insert (Standard) / HSD

                                                                  CAD
                                                                  • 2D / 3D
                                                                  Days to Ship 4 Day(s) or more 5 Day(s) or more 4 Day(s) or more 5 Day(s) or more 11 Day(s) or more 5 Day(s) or more 11 Day(s) or more 4 Day(s) or more 11 Day(s) or more 11 Day(s) or more 5 Day(s) or more 11 Day(s) or more 5 Day(s) or more 11 Day(s) or more 5 Day(s) or more 5 Day(s) or more 11 Day(s) or more 5 Day(s) or more 5 Day(s) or more 5 Day(s) or more 11 Day(s) or more 11 Day(s) or more 5 Day(s) or more 5 Day(s) or more 5 Day(s) or more 5 Day(s) or more 11 Day(s) or more 11 Day(s) or more 11 Day(s) or more 11 Day(s) or more 11 Day(s) or more 11 Day(s) or more
                                                                  Screw Dia. M (after insertion)(mm)82 ~ 42 ~ 182 ~ 122 ~ 43 ~ 122 ~ 42.5 ~ 1033-3102.5 ~ 42 ~ 433-3 ~ 42 ~ 2433-83 ~ 65333333 ~ 4
                                                                  Environmentally friendly--------------------------------
                                                                  TypeStandardStandardStandardStandardPress FitStandardPress FitTanglessSelf-TappingSelf-TappingStandardSelf-TappingStandardPress FitStandardStandardSelf-TappingStandardStandardStandardSelf-TappingPress FitStandardStandardStandardStandardSelf-TappingSelf-TappingSelf-TappingSelf-TappingSelf-TappingPress Fit
                                                                  Characteristics/Applications--------------------------------
                                                                  MaterialStainless Steel (SUS303/304)BrassStainless Steel (SUS303/304)Stainless Steel (SUS303/304) / Phosphor BronzeBrassStainless Steel (SUS303/304)BrassStainless Steel (SUS303/304)Stainless Steel (SUS303/304)BrassStainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)NylonBrassBrassBrassStainless Steel (SUS303/304)BrassStainless Steel (SUS303/304)Stainless Steel (SUS303/304)BrassStainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)BrassAluminumAluminumBrassStainless Steel (SUS303/304)Brass
                                                                  Screw TypeMetric (Fine) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadUnified (Coarse) ThreadMetric (Coarse) ThreadMetric (Fine) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadUnified (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadUnified (Fine) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) Thread
                                                                  Length L (after insertion) (D = Thread Dia. M)3D3D3D3D3D3D3D3D3D3D3D3D3D3D3D3D3D3D3D3D3D3D3D3D3D3D3D3D3D3D3D3D
                                                                  ApplicationLight MetalResin GeneralLight MetalLight MetalLight MetalLight Metal / Cast Iron / Resin GeneralLight MetalLight MetalCast IronLight Metal-Cast IronLight Metal / Cast Iron / Resin GeneralResin GeneralResin GeneralResin GeneralLight MetalLight MetalResin General-Cast IronLight MetalLight MetalLight Metal--Light MetalLight MetalLight MetalLight MetalCast IronLight Metal
                                                                  NotchProvidedNot ProvidedProvidedProvidedNot ProvidedProvidedNot ProvidedProvidedNot ProvidedNot ProvidedProvidedNot ProvidedProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedProvidedNot ProvidedProvidedNot ProvidedNot ProvidedProvidedProvidedProvidedProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot Provided
                                                                  Thread Dia. (After inserted), Unified(inch)----------3/8-16 ~ 5/16-18------1/4-20 ~ #4-40----1/4-28 ~ 5/16-24---------
                                                                  Shape-Standard--Standard-Standard-StandardStandardSlottedSlotted-StandardStandardStandardSlotted-StandardStandardStandardStandard--Standard-StandardStandardStandardSlottedSlottedStandard
                                                                  Sales UnitLow Quantity (Available beginning with 1 pc.)Low Quantity (Available beginning with 1 pc.) / Box, Pkg.Low Quantity (Available beginning with 1 pc.)Low Quantity (Available beginning with 1 pc.) / Box, Pkg.Box, Pkg.Low Quantity (Available beginning with 1 pc.)Box, Pkg.Low Quantity (Available beginning with 1 pc.)Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Low Quantity (Available beginning with 1 pc.)Box, Pkg.Box, Pkg.Low Quantity (Available beginning with 1 pc.)Box, Pkg.Box, Pkg.Low Quantity (Available beginning with 1 pc.) / Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.
                                                                  Cleaning Method--------------------------------

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