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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
  • All
  • 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
  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
  • On Sale Till 31/03/2025

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

  • On Sale Till 31/03/2025

Thread Inserts

  • On Sale Till 31/03/2025

Dodge Bit Insert Flange Type  (Brass Cadmium-Free)

    Recoil-Free (mm) SUS304

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

        E-Certs

          Stainless Steel/Insert Nut Threaded Type / IRU

            Sprue

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

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

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

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

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

                        E-Sert Fine

                          Dodge Bit Insert Standard SD (Brass Cadmium-Less)

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

                              Brass Bit Insert (Flange Type) / HFB

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

                                  Sprue (Unified) (UNC)

                                    Sprue (Unify) (UNF)

                                      Lock Sprue

                                        Tangless Insert (SUS304)

                                          Stainless Steel Recoil

                                            Stainless Steel E-Sert Hemlock-Made

                                              Stainless Steel E-Sert (Unify) (UNC)

                                                Lock Type Sprew

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

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

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

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

                                                          Brass Dutch Insert (Standard) / HSD

                                                            Nylon Nut Insert / NNI

                                                            Brand

                                                            TOKAI METAL INDUSTRY

                                                            MISUMI

                                                            TOKAI METAL INDUSTRY

                                                            RECOIL

                                                            HIROSUGI-KEIKI

                                                            TSUGAMI

                                                            HIROSUGI-KEIKI

                                                            NIPPON SPREW

                                                            HIROSUGI-KEIKI

                                                            HIROSUGI-KEIKI

                                                            HIROSUGI-KEIKI

                                                            HIROSUGI-KEIKI

                                                            TOKAI METAL INDUSTRY

                                                            TSUGAMI

                                                            TOKAI METAL INDUSTRY

                                                            HIROSUGI-KEIKI

                                                            HIROSUGI-KEIKI

                                                            HIROSUGI-KEIKI

                                                            NIPPON SPREW

                                                            NIPPON SPREW

                                                            NIPPON SPREW

                                                            RECOIL

                                                            SUNCO

                                                            SUNCO

                                                            SUNCO

                                                            SUNCO

                                                            HIROSUGI-KEIKI

                                                            HIROSUGI-KEIKI

                                                            HIROSUGI-KEIKI

                                                            HIROSUGI-KEIKI

                                                            HIROSUGI-KEIKI

                                                            HIROSUGI-KEIKI

                                                            Product Series

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

                                                            Thread Inserts

                                                            Dodge Bit Insert Flange Type (Brass Cadmium-Free)

                                                            Recoil-Free (mm) SUS304

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

                                                            E-Certs

                                                            Stainless Steel/Insert Nut Threaded Type / IRU

                                                            Sprue【1-100 Pieces Per Package】

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

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

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

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

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

                                                            E-Sert Fine

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

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

                                                            Brass Bit Insert (Flange Type) / HFB

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

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

                                                            Sprue (Unify) (UNF)【10 Pieces Per Package】

                                                            Lock Sprue【100 Pieces Per Package】

                                                            Tangless Insert (SUS304)

                                                            Stainless Steel Recoil【100 Pieces Per Package】

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

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

                                                            Lock Type Sprew【100 Pieces Per Package】

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

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

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

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

                                                            Brass Dutch Insert (Standard) / HSD

                                                            Nylon Nut Insert / NNI

                                                            CAD
                                                            • 2D / 3D
                                                            Days to Ship 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 4 Day(s) or more 11 Day(s) or more 4 Day(s) or more 11 Day(s) or more 11 Day(s) or more 11 Day(s) or more 11 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 11 Day(s) or more 4 Day(s) 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 4 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)2 ~ 4832 ~ 1833 ~ 1232 ~ 123332 ~ 42 ~ 4103 ~ 4332 ~ 4--82.5 ~ 103 ~ 62 ~ 20-533333 ~ 42.5 ~ 4
                                                            Environmentally friendly--------------------------------
                                                            TypeStandardStandardStandardStandardSelf-TappingStandardSelf-TappingStandardSelf-TappingSelf-TappingSelf-TappingPress FitStandardStandardStandardSelf-TappingPress FitPress FitStandardStandardStandardTanglessStandardStandardStandardStandardSelf-TappingSelf-TappingSelf-TappingSelf-TappingPress FitPress Fit
                                                            Characteristics/Applications--------------------------------
                                                            MaterialBrassStainless Steel (SUS303/304)BrassStainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304) / Phosphor BronzeBrassBrassStainless Steel (SUS303/304)BrassBrassStainless Steel (SUS303/304)BrassAluminumBrassBrassStainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)BrassStainless Steel (SUS303/304)AluminumBrassBrassNylon
                                                            Screw TypeMetric (Coarse) ThreadMetric (Fine) 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) ThreadUnified (Coarse) ThreadUnified (Fine) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadUnified (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
                                                            ApplicationResin GeneralLight MetalResin GeneralLight MetalCast IronLight Metal / Cast Iron / Resin GeneralCast IronLight MetalLight MetalLight MetalCast IronLight MetalResin GeneralLight Metal / Cast Iron / Resin GeneralResin GeneralLight MetalLight MetalLight MetalLight MetalLight MetalLight MetalLight Metal----Light MetalCast IronLight MetalLight MetalLight MetalResin General
                                                            NotchNot ProvidedProvidedNot ProvidedProvidedNot ProvidedProvidedNot ProvidedProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedProvidedProvidedProvidedProvidedProvidedProvidedProvidedProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot Provided
                                                            Thread Dia. (After inserted), Unified(inch)------------------1/4-20 ~ #4-401/4-28 ~ 5/16-24----3/8-16 ~ 5/16-18-------
                                                            ShapeStandard-Standard-Slotted-Standard-StandardSlottedSlottedStandardStandard-StandardStandardStandardStandard----StandardStandardSlotted-StandardStandardStandardSlottedStandardStandard
                                                            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.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Low Quantity (Available beginning with 1 pc.)Low Quantity (Available beginning with 1 pc.) / Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.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.
                                                            Cleaning Method--------------------------------

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