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Insert

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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  • Same day
  • 3 Day(s) or Less
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  • 7 Day(s) or Less
  • 8 Day(s) or Less
  • 9 Day(s) or Less
  • 10 Day(s) or Less
  • 11 Day(s) or Less
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
  • On Sale Till 31/03/2025

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

  • On Sale Till 31/03/2025

Thread Inserts

    Self-Tapping Inserts - Slotted

      Dodge Bit Insert Flange Type  (Brass Cadmium-Free)

        Techlock (SL)

          Recoil-Free (mm) SUS304

            Ultrasert UD2 / UD4 (Brass Cadmium-Free)

              Brass Bit Insert (Flange Type) / HFB

                Insert SUS316

                • On Sale Till 31/03/2025

                Thread Inserts/Tangless

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

                    [Clean & Pack]Self-Tapping Inserts - Slotted

                      C Lock (CL Type)

                        Thread Insert Removal Tool

                          Nitronic 60 Insert

                            Brass Ensat Thread Plastic Deformation Type, Model 305

                              C-Lock (HCL Type)

                                Lock Recoil (mm) SUS304

                                  Ensat 3 Holes Short Type, Model 307

                                    Tool for Ensat, for Manual Processing, 610 Type

                                      Sparrow (Type SP)

                                      • On Sale Till 31/03/2025

                                      Thread Insert (Box)

                                      • On Sale Till 31/03/2025

                                      Ensat Expanded Slot Type, Model 302

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

                                          Self-Tapping Inserts - Hand Tools for Self-Tapping Inserts

                                            E-Certs

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

                                                Tangless Inserts Installation/Removal Tools

                                                • On Sale Till 31/03/2025

                                                Tangless Insert Metric Coarse

                                                  Dodge Insert Flange Type (Brass Cadmium-Less)

                                                    Ensat, Type 308, 3-Hole / Long Size

                                                      Tool for Ensat, for Machine Processing, 620 Type

                                                        Male Screw Repair Coil Thread -R

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

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

                                                              Brass Mini Bit Inserts / HMIB-Z

                                                                Coil Thread R

                                                                • On Sale Till 31/03/2025

                                                                Taps for Thread Inserts

                                                                  Tangless Insert Unified Fine

                                                                    Sprue

                                                                      Sprue (Unified) (UNC)

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

                                                                          Recoil Kit for Spark Plugs

                                                                            Ensat Chip Free Long Type, Model 338

                                                                              TEC Sonic (TEC Type)

                                                                              Brand

                                                                              TOKAI METAL INDUSTRY

                                                                              MISUMI

                                                                              MISUMI

                                                                              TOKAI METAL INDUSTRY

                                                                              JAPAN DRIVEIT

                                                                              RECOIL

                                                                              TOKAI METAL INDUSTRY

                                                                              HIROSUGI-KEIKI

                                                                              RECOIL

                                                                              MISUMI

                                                                              HIROSUGI-KEIKI

                                                                              MISUMI

                                                                              BOHSEI

                                                                              MISUMI

                                                                              RECOIL

                                                                              KKV

                                                                              BOHSEI

                                                                              RECOIL

                                                                              KKV

                                                                              KKV

                                                                              JAPAN DRIVEIT

                                                                              MISUMI

                                                                              KKV

                                                                              HIROSUGI-KEIKI

                                                                              MISUMI

                                                                              TSUGAMI

                                                                              HIROSUGI-KEIKI

                                                                              MISUMI

                                                                              ACCURATE

                                                                              TOKAI METAL INDUSTRY

                                                                              KKV

                                                                              KKV

                                                                              KS SANGYO

                                                                              HIROSUGI-KEIKI

                                                                              HIROSUGI-KEIKI

                                                                              HIROSUGI-KEIKI

                                                                              ACCURATE

                                                                              MISUMI

                                                                              ACCURATE

                                                                              NIPPON SPREW

                                                                              NIPPON SPREW

                                                                              TOKAI METAL INDUSTRY

                                                                              RECOIL

                                                                              KKV

                                                                              JAPAN DRIVEIT

                                                                              Product Series

                                                                              Dodge Bit Insert (Standard) SB Brass (Cadmium-Free)【1-8,000 Pieces Per Package】

                                                                              Thread Inserts

                                                                              Self-Tapping Inserts - Slotted

                                                                              Dodge Bit Insert Flange Type (Brass Cadmium-Free)【1-5,000 Pieces Per Package】

                                                                              Techlock (SL)【1-5,000 Pieces Per Package】

                                                                              Recoil-Free (mm) SUS304【1-3 Pieces Per Package】

                                                                              Ultrasert UD2 / UD4 (Brass Cadmium-Free)【1-5,000 Pieces Per Package】

                                                                              Brass Bit Insert (Flange Type) / HFB

                                                                              Insert SUS316

                                                                              Thread Inserts/Tangless

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

                                                                              [Clean & Pack]Self-Tapping Inserts - Slotted

                                                                              C Lock (CL Type)【100 Pieces Per Package】

                                                                              Thread Insert Removal Tool

                                                                              Nitronic 60 Insert

                                                                              Brass Ensat Thread Plastic Deformation Type, Model 305

                                                                              C-Lock (HCL Type)【10-100 Pieces Per Package】

                                                                              Lock Recoil (mm) SUS304

                                                                              Ensat 3 Holes Short Type, Model 307

                                                                              Tool for Ensat, for Manual Processing, 610 Type

                                                                              Sparrow (Type SP)

                                                                              Thread Insert (Box)【100 Pieces Per Package】

                                                                              Ensat Expanded Slot Type, Model 302

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

                                                                              Self-Tapping Inserts - Hand Tools for Self-Tapping Inserts

                                                                              E-Certs【1-100 Pieces Per Package】

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

                                                                              Tangless Inserts Installation/Removal Tools

                                                                              Tangless Insert Metric Coarse【1-50 Pieces Per Package】

                                                                              Dodge Insert Flange Type (Brass Cadmium-Less)【1-600 Pieces Per Package】

                                                                              Ensat, Type 308, 3-Hole / Long Size

                                                                              Tool for Ensat, for Machine Processing, 620 Type

                                                                              Male Screw Repair Coil Thread -R【20 Pieces Per Package】

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

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

                                                                              Brass Mini Bit Inserts / HMIB-Z

                                                                              Coil Thread R

                                                                              Taps for Thread Inserts

                                                                              Tangless Insert Unified Fine

                                                                              Sprue【1-100 Pieces Per Package】

                                                                              Sprue (Unified) (UNC)【1-100 Pieces Per Package】

                                                                              DODGE BET Insert (Standard), Double Sided Chamfer Type, Brass (Cadmium-Free)【1-15,000 Pieces Per Package】

                                                                              Recoil Kit for Spark Plugs

                                                                              Ensat Chip Free Long Type, Model 338

                                                                              TEC Sonic (TEC Type)【1-500 Pieces Per Package】

                                                                              CAD
                                                                              • 2D / 3D
                                                                              • 2D / 3D
                                                                              • 2D / 3D
                                                                              • 2D / 3D
                                                                              • 2D / 3D
                                                                              • 2D / 3D
                                                                              • 2D / 3D
                                                                              • 2D / 3D
                                                                              • 2D / 3D
                                                                              • 2D / 3D
                                                                              Days to Ship Same day or more Same day or more Same day or more Same day or more Same day or more 3 Day(s) or more Same day or more 4 Day(s) or more 3 Day(s) or more 3 Day(s) or more 11 Day(s) or more 5 Day(s) or more 3 Day(s) or more Same day or more 3 Day(s) or more 3 Day(s) or more 3 Day(s) or more 3 Day(s) or more 3 Day(s) or more Same day or more 3 Day(s) or more Same day or more Same day or more 3 Day(s) or more Same day or more Same day or more 11 Day(s) or more Same day or more 3 Day(s) or more 3 Day(s) or more 3 Day(s) or more 3 Day(s) or more 3 Day(s) or more 11 Day(s) or more 11 Day(s) or more 4 Day(s) or more 8 Day(s) or more Same day or more 6 Day(s) or more 3 Day(s) or more 3 Day(s) or more 3 Day(s) or more 3 Day(s) or more 3 Day(s) or more 3 Day(s) or more
                                                                              Screw Dia. M (after insertion)(mm)1.6 ~ 83 ~ 163 ~ 122 ~ 82 ~ 102 ~ 422 ~ 102 ~ 53 ~ 162.5 ~ 102.6 ~ 83 ~ 122 ~ 6-3 ~ 123 ~ 63 ~ 63 ~ 243 ~ 162.5 ~ 162 ~ 63 ~ 82.5 ~ 301.4 ~ 5-2 ~ 242.6 ~ 8-2 ~ 242.6 ~ 83 ~ 162.5 ~ 303 ~ 62.6 ~ 81.4 ~ 51.4 ~ 1.73 ~ 6--2 ~ 30-1.4 ~ 610 ~ 183 ~ 162 ~ 8
                                                                              Environmentally friendly-----------RoHS Compliant (10 Substances)---------------------------------
                                                                              TypeStandardStandardSelf-TappingStandardPress FitStandardStandardPress FitStandardTanglessSelf-TappingSelf-TappingPress FitToolStandardSelf-TappingPress FitStandardSelf-TappingToolPress FitStandardSelf-TappingPress FitToolStandardSelf-TappingToolTanglessStandardSelf-TappingToolStandardSelf-TappingPress FitPress FitStandardToolTanglessStandardStandardStandardToolSelf-TappingPress Fit
                                                                              Characteristics/Applications-----------Clean Washed---------------------------------
                                                                              MaterialBrassStainless Steel (SUS303/304)Steel / Stainless Steel (SUS303/304)BrassBrassStainless Steel (SUS303/304)BrassBrassStainless Steel (SUS316)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)Brass-Nitrox 60BrassBrassStainless Steel (SUS303/304)Steel / Stainless Steel (SUS303/304) / Stainless Steel (SUS430F)SteelBrassStainless Steel (SUS303/304)Steel / Stainless Steel (SUS303/304) / Stainless Steel (SUS430F) / BrassBrass-Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)-Stainless Steel (SUS303/304)BrassSteel / Stainless Steel (SUS303/304) / Stainless Steel (SUS430F)-Stainless Steel (SUS303/304)BrassBrassBrassStainless Steel (SUS303/304)-Stainless Steel (SUS303/304)Stainless Steel (SUS303/304) / Phosphor BronzeStainless Steel (SUS303/304)BrassStainless Steel (SUS303/304)Steel / Stainless Steel (SUS303/304) / Stainless Steel (SUS430F)Brass
                                                                              Screw TypeMetric (Coarse) ThreadMetric (Coarse) Thread / Metric (Fine) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) Thread-Metric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) Thread-Metric (Coarse) ThreadMetric (Coarse) Thread-Metric (Coarse) Thread / Metric (Fine) ThreadMetric (Coarse) ThreadMetric (Coarse) Thread-Metric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) Thread-Unified (Fine) ThreadMetric (Coarse) ThreadUnified (Coarse) ThreadMetric (Coarse) Thread-Metric (Coarse) ThreadMetric (Coarse) Thread
                                                                              Length L (after insertion) (D = Thread Dia. M)1D / 1.5D / 2D / 2.5D / 3D1D / 1.5D / 2D / 3D-1D / 1.5D / 2D / 2.5D / 3D1D / 1.5D / 2D / 2.5D1D / 1.5D / 2D / 2.5D / 3D1D / 1.5D / 2D1D / 1.5D / 2D / 2.5D / 3D1D / 1.5D / 2D1D / 1.5D / 2D1D / 1.5D / 2D / 2.5D / 3D / 0.8D / 3.5D---1D / 1.5D / 2D--1D / 1.5D / 2D--1D / 1.5D / 2D1D / 1.5D / 2D-1D / 1.5D / 2D / 2.5D / 3D / 0.7D / 0.8D / 3.5D / 4D-1D / 1.5D / 2D / 2.5D / 3D / 0.5D1D / 1.5D / 2D / 2.5D / 3D / 0.8D / 3.5D-1D / 1.5D / 2D1.5D / 2D / 2.5D--1D / 1.5D / 2D1D / 1.5D / 2D / 2.5D / 3D / 0.8D / 3.5D1D / 1.5D / 2D / 2.5D / 3D / 0.7D / 0.8D / 3.5D / 4D1.5D / 2D1D / 1.5D / 2D-1D / 1.5D / 2D1D / 1.5D / 2D / 2.5D / 3D1D / 1.5D / 2D / 2.5D / 3D1D / 1.5D / 2D / 2.5D / 3D / 0.7D--1.5D / 2D
                                                                              ApplicationResin GeneralLight MetalLight MetalResin General-Light MetalResin GeneralLight MetalLight MetalLight MetalCast IronLight MetalResin General-Light Metal-Resin GeneralLight Metal--Resin GeneralLight Metal-Light Metal-Light Metal / Cast Iron / Resin GeneralCast Iron-Light Metal / Cast Iron / Resin GeneralResin General--Light Metal / Cast Iron / Resin GeneralLight MetalLight MetalLight MetalLight Metal / Cast Iron / Resin General-Light Metal / Cast Iron / Resin GeneralLight MetalLight MetalResin General---
                                                                              NotchNot ProvidedProvidedNot ProvidedNot ProvidedNot ProvidedProvidedNot ProvidedNot ProvidedProvidedNot ProvidedNot ProvidedNot Provided--Provided--Provided-Not ProvidedNot ProvidedProvided-Not Provided-ProvidedNot Provided-Not ProvidedNot Provided--ProvidedNot ProvidedNot ProvidedNot Provided---ProvidedProvidedNot Provided--Not Provided
                                                                              Thread Dia. (After inserted), Unified(inch)--------------------------------------1/4 ~ 10-1/2-13 ~ #10-24----
                                                                              ShapeStandard-SlottedStandardStandard-StandardStandard--SlottedSlottedStandard--StandardStandard-3-Hole Type-Standard-SlottedStandard--Slotted--Standard3-Hole Type-StandardSlottedStandardStandard-----Standard-Tip Free TypeStandard
                                                                              Sales UnitLow Quantity (Available beginning with 1 pc.) / Box, Pkg.Low Quantity (Available beginning with 1 pc.)Low Quantity (Available beginning with 1 pc.)Low Quantity (Available beginning with 1 pc.) / Box, Pkg.Low Quantity (Available beginning with 1 pc.) / Box, Pkg.Low Quantity (Available beginning with 1 pc.) / Box, Pkg.Low Quantity (Available beginning with 1 pc.) / Box, Pkg.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.Low Quantity (Available beginning with 1 pc.)Box, Pkg.Low Quantity (Available beginning with 1 pc.)Low Quantity (Available beginning with 1 pc.)Low Quantity (Available beginning with 1 pc.)-Low Quantity (Available beginning with 1 pc.)Low Quantity (Available beginning with 1 pc.)Low 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.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.)-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.)-Low Quantity (Available beginning with 1 pc.) / Box, Pkg.Low Quantity (Available beginning with 1 pc.) / Box, Pkg.Low Quantity (Available beginning with 1 pc.) / Box, Pkg.Low Quantity (Available beginning with 1 pc.)--
                                                                              Cleaning Method-----------Degreasing / Precision Cleaning / Electrolytic Polishing + Precision Cleaning---------------------------------

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