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Insert(Length L (after insertion) (D = Thread Dia. M):1.5D)

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
  • 4 Day(s) or Less
  • 5 Day(s) or Less
  • 6 Day(s) or Less
  • 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)
Type
Material
Screw Type
Length L (after insertion) (D = Thread Dia. M)
Application
Notch
Thread Dia. (After inserted), Unified(inch)
Shape
Sales Unit
  • On Sale Till 31/03/2025

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

  • On Sale Till 31/03/2025

Thread Inserts

    Ultrasert UD2 / UD4 (Brass Cadmium-Free)

      Techlock (SL)

        Nitronic 60 Insert

          Recoil-Free (mm) SUS304

          • On Sale Till 31/03/2025

          Dodge Bit Insert Flange Type  (Brass Cadmium-Free)

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

              Insert SUS316

                Dodge Bit Insert Standard SD (Brass Cadmium-Less)

                • On Sale Till 31/03/2025

                Heat-Lok (HL Type)

                  Brass Bit Insert (Flange Type) / HFB

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

                      Stainless Steel/Insert Nut Threaded Type / IRU

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

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

                          • On Sale Till 31/03/2025

                          Thread Insert (Box)

                            TEC Sonic (TEC Type)

                              Dodge Insert Flange Type (Brass Cadmium-Less)

                                Stainless Steel E-Sert Fine (Hemlock-Made)

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

                                    Coil Thread R

                                    • On Sale Till 31/03/2025

                                    Thread Inserts/Tangless

                                      E-Certs

                                        Lock Recoil (mm) SUS304

                                          Insert Phosphor Bronze

                                            Sparrow (Type SP)

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

                                                Sprue (Unified) (UNC)

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

                                                  • On Sale Till 31/03/2025

                                                  Tangless Insert Metric Coarse

                                                    Brass Dutch Insert (Standard) / HSD

                                                      Brass Ultrasert IV (Flanged) / HFU

                                                        Tangless Insert Unified Coarse

                                                          Sprue

                                                            Recoil Packet (UNC)

                                                              Recoil-Free (Specified mm) SUS304

                                                                Tangless Insert (SUS304)

                                                                  Tangless insert metric coarsephosphor bronze

                                                                    Stainless Steel Tangless Insert

                                                                      Lock E-Sert (Fine Mesh)

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

                                                                          Brass Ultrasert II/HUD II

                                                                            Thread Insert (Box)

                                                                              Recoil Packet (Milli)

                                                                              Brand

                                                                              TOKAI METAL INDUSTRY

                                                                              MISUMI

                                                                              TOKAI METAL INDUSTRY

                                                                              JAPAN DRIVEIT

                                                                              RECOIL

                                                                              RECOIL

                                                                              TOKAI METAL INDUSTRY

                                                                              HIROSUGI-KEIKI

                                                                              RECOIL

                                                                              TOKAI METAL INDUSTRY

                                                                              JAPAN DRIVEIT

                                                                              HIROSUGI-KEIKI

                                                                              TOKAI METAL INDUSTRY

                                                                              HIROSUGI-KEIKI

                                                                              HIROSUGI-KEIKI

                                                                              HIROSUGI-KEIKI

                                                                              MISUMI

                                                                              JAPAN DRIVEIT

                                                                              TOKAI METAL INDUSTRY

                                                                              SUNCO

                                                                              HIROSUGI-KEIKI

                                                                              ACCURATE

                                                                              MISUMI

                                                                              TSUGAMI

                                                                              RECOIL

                                                                              RECOIL

                                                                              JAPAN DRIVEIT

                                                                              HIROSUGI-KEIKI

                                                                              NIPPON SPREW

                                                                              HIROSUGI-KEIKI

                                                                              ACCURATE

                                                                              HIROSUGI-KEIKI

                                                                              HIROSUGI-KEIKI

                                                                              ACCURATE

                                                                              NIPPON SPREW

                                                                              RECOIL

                                                                              RECOIL

                                                                              RECOIL

                                                                              ACCURATE

                                                                              SUNCO

                                                                              SUNCO

                                                                              HIROSUGI-KEIKI

                                                                              HIROSUGI-KEIKI

                                                                              MISUMI

                                                                              RECOIL

                                                                              Product Series

                                                                              Dodge Bit Insert (Standard) SB Brass (Cadmium-Free)【1-3,000 Pieces Per Package】

                                                                              Thread Inserts

                                                                              Ultrasert UD2 / UD4 (Brass Cadmium-Free)【1-600 Pieces Per Package】

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

                                                                              Nitronic 60 Insert

                                                                              Recoil-Free (mm) SUS304

                                                                              Dodge Bit Insert Flange Type (Brass Cadmium-Free)

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

                                                                              Insert SUS316

                                                                              Dodge Bit Insert Standard SD (Brass Cadmium-Less)

                                                                              Heat-Lok (HL Type)【1,000 Pieces Per Package】

                                                                              Brass Bit Insert (Flange Type) / HFB

                                                                              DODGE BET Insert (Standard), Double Sided Chamfer Type, Brass (Cadmium-Free)【1-10,000 Pieces Per Package】

                                                                              Stainless Steel/Insert Nut Threaded Type / IRU

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

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

                                                                              Thread Insert (Box)【100 Pieces Per Package】

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

                                                                              Dodge Insert Flange Type (Brass Cadmium-Less)

                                                                              Stainless Steel E-Sert Fine (Hemlock-Made)【1-100 Pieces Per Package】

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

                                                                              Coil Thread R

                                                                              Thread Inserts/Tangless

                                                                              E-Certs

                                                                              Lock Recoil (mm) SUS304

                                                                              Insert Phosphor Bronze

                                                                              Sparrow (Type SP)

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

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

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

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

                                                                              Brass Dutch Insert (Standard) / HSD

                                                                              Brass Ultrasert IV (Flanged) / HFU

                                                                              Tangless Insert Unified Coarse

                                                                              Sprue【1-100 Pieces Per Package】

                                                                              Recoil Packet (UNC)【10 Pieces Per Package】

                                                                              Recoil-Free (Specified mm) SUS304

                                                                              Tangless Insert (SUS304)

                                                                              Tangless insert metric coarsephosphor bronze

                                                                              Stainless Steel Tangless Insert

                                                                              Lock E-Sert (Fine Mesh)【100 Pieces Per Package】

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

                                                                              Brass Ultrasert II/HUD II

                                                                              Thread Insert (Box)【100 Pieces Per Package】

                                                                              Recoil Packet (Milli)【5-10 Pieces Per Package】

                                                                              CAD
                                                                              • 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 4 Day(s) or more 4 Day(s) or more 4 Day(s) or more Same day or more 11 Day(s) or more 4 Day(s) or more 4 Day(s) or more 4 Day(s) or more 4 Day(s) or more 4 Day(s) or more 11 Day(s) or more 11 Day(s) or more 4 Day(s) or more Same day or more 14 Day(s) or more 4 Day(s) or more 4 Day(s) or more 11 Day(s) or more 8 Day(s) or more Same day or more Same day or more 4 Day(s) or more 4 Day(s) or more 4 Day(s) or more 11 Day(s) or more 4 Day(s) or more 11 Day(s) or more Same day or more 11 Day(s) or more 11 Day(s) or more 9 Day(s) or more 4 Day(s) or more 4 Day(s) or more 7 Day(s) or more 4 Day(s) or more 8 Day(s) or more 4 Day(s) or more 4 Day(s) or more 11 Day(s) or more 11 Day(s) or more 4 Day(s) or more 4 Day(s) or more
                                                                              Screw Dia. M (after insertion)(mm)2 ~ 83 ~ 163 ~ 82 ~ 83 ~ 122 ~ 422 ~ 62.6 ~ 83 ~ 162.6 ~ 532 ~ 51.4 ~ 62 ~ 82.6 ~ 81.7 ~ 53 ~ 884 ~ 66 ~ 391.4 ~ 53 ~ 62.5 ~ 102 ~ 243 ~ 203 ~ 245 ~ 62.6 ~ 8-2.6 ~ 82 ~ 203 ~ 58-2 ~ 30-8 ~ 202.5 ~ 123 ~ 62 ~ 208 ~ 142 ~ 82.6 ~ 82.5 ~ 82 ~ 20
                                                                              TypeStandardStandardStandardPress FitStandardStandardStandardSelf-TappingStandardStandardPress FitPress FitStandardSelf-TappingSelf-TappingPress FitStandardPress FitStandardStandardPress FitStandardTanglessStandardStandardStandardPress FitSelf-TappingStandardSelf-TappingTanglessPress FitPress FitTanglessStandardStandardStandardTanglessTanglessTanglessStandardSelf-TappingPress FitTanglessStandard
                                                                              MaterialBrassStainless Steel (SUS303/304)BrassBrassNitrox 60Stainless Steel (SUS303/304)BrassStainless Steel (SUS303/304)Stainless Steel (SUS316)BrassBrassBrassBrassStainless Steel (SUS303/304)Stainless Steel (SUS303/304)BrassStainless Steel (SUS303/304)BrassBrassStainless Steel (SUS303/304)BrassStainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)Phosphor BronzeBrassStainless Steel (SUS303/304)Stainless Steel (SUS303/304)BrassStainless Steel (SUS303/304)BrassBrassStainless Steel (SUS303/304)Stainless Steel (SUS303/304) / Phosphor BronzeStainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)Phosphor BronzeStainless Steel (SUS303/304)Stainless Steel (SUS303/304)BrassBrassStainless Steel (SUS303/304)Stainless Steel (SUS303/304)
                                                                              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) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Fine) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadUnified (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadUnified (Coarse) ThreadMetric (Coarse) ThreadUnified (Coarse) ThreadMetric (Fine) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Fine) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) Thread / Metric (Fine) Thread
                                                                              Length L (after insertion) (D = Thread Dia. M)1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D
                                                                              ApplicationResin GeneralLight MetalResin General-Light MetalLight MetalResin GeneralCast IronLight MetalResin GeneralResin GeneralLight MetalResin GeneralCast IronCast IronLight MetalLight Metal-Resin General-Light MetalLight Metal / Cast Iron / Resin GeneralLight MetalLight Metal / Cast Iron / Resin GeneralLight MetalLight MetalResin GeneralCast IronLight MetalLight MetalLight Metal / Cast Iron / Resin GeneralLight MetalLight MetalLight Metal / Cast Iron / Resin GeneralLight MetalLight MetalLight MetalLight MetalLight Metal / Cast Iron / Resin General--Light MetalLight MetalLight MetalLight Metal
                                                                              NotchNot ProvidedProvidedNot ProvidedNot ProvidedProvidedProvidedNot ProvidedNot ProvidedProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedProvidedNot ProvidedNot ProvidedProvidedNot Provided-Not ProvidedProvidedProvidedProvidedNot ProvidedNot ProvidedProvidedNot ProvidedNot ProvidedNot ProvidedNot Provided-ProvidedProvidedProvidedNot Provided-ProvidedProvidedNot ProvidedNot ProvidedNot ProvidedProvided
                                                                              Thread Dia. (After inserted), Unified(inch)----------------------------1/2-13 ~ #10-24----1/4 ~ 10-1/4-20 ~ 7/16-14---------
                                                                              ShapeStandard-StandardStandard--StandardSlotted-StandardStandardStandardStandardStandardStandardStandard-StandardStandardStandardStandard-----StandardSlotted-Slotted-StandardStandard------Standard-StandardStandard--
                                                                              Sales UnitLow 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.)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.Box, Pkg.Box, Pkg.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.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.)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.)Low Quantity (Available beginning with 1 pc.)-Low Quantity (Available beginning with 1 pc.)Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.

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