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Insert(Length L (after insertion) (D = Thread Dia. M):2.5D)

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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  • 1 Day(s) or Less
  • 2 Day(s) or Less
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  • 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
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

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

      Stainless Steel/Insert Nut Threaded Type / IRU

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

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

            E-Certs

              Dodge Bit Insert Flange Type  (Brass Cadmium-Free)

                Tangless Insert (SUS304)

                  E-Sert Fine

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

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

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

                          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 (Flange Type) / HFB

                                Sprue

                                  Dodge Bit Insert Standard SD (Brass Cadmium-Less)

                                    Stainless Steel E-Sert Hemlock-Made

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

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

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

                                            Brass Dutch Insert (Standard) / HSD

                                              Brass Dutch Insert (Flanged) / HFD

                                                Sprue (Unified) (UNC)

                                                  Dodge Insert Flange Type (Brass Cadmium-Less)

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

                                                      Techlock (SL)

                                                        Screwsert (Type SCT)

                                                          FLO-TECH (FTC Type)

                                                            Stainless Steel Recoil

                                                              Stainless Steel E-Sert Fine (Hemlock-Made)

                                                                Stainless Steel E-Sert (Unify) (UNC)

                                                                  Stainless Steel E-Sert (Unify) (UNF)

                                                                    Lock Type Sprew

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

                                                                        Brass Ultrasert II/HUD II

                                                                          Brass Ultrasert IV (Flanged) / HFU

                                                                            Nylon Nut Insert / NNI

                                                                            Brand

                                                                            TOKAI

                                                                            HIROSUGI-KEIKI

                                                                            HIROSUGI-KEIKI

                                                                            HIROSUGI-KEIKI

                                                                            TSUGAMI

                                                                            TOKAI

                                                                            RECOIL

                                                                            TSUGAMI

                                                                            HIROSUGI-KEIKI

                                                                            HIROSUGI-KEIKI

                                                                            HIROSUGI-KEIKI

                                                                            HIROSUGI-KEIKI

                                                                            HIROSUGI-KEIKI

                                                                            HIROSUGI-KEIKI

                                                                            NIPPON SPREW

                                                                            TOKAI

                                                                            SUNCO

                                                                            HIROSUGI-KEIKI

                                                                            HIROSUGI-KEIKI

                                                                            HIROSUGI-KEIKI

                                                                            HIROSUGI-KEIKI

                                                                            HIROSUGI-KEIKI

                                                                            NIPPON SPREW

                                                                            TOKAI

                                                                            TOKAI

                                                                            JAPAN_DRIVEIT

                                                                            JAPAN_DRIVEIT

                                                                            JAPAN_DRIVEIT

                                                                            SUNCO

                                                                            SUNCO

                                                                            SUNCO

                                                                            SUNCO

                                                                            SUNCO

                                                                            HIROSUGI-KEIKI

                                                                            HIROSUGI-KEIKI

                                                                            HIROSUGI-KEIKI

                                                                            HIROSUGI-KEIKI

                                                                            Product Series

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

                                                                            Stainless Steel/Insert Nut Threaded Type / IRU

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

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

                                                                            E-Certs【1-100 Pieces Per Package】

                                                                            Dodge Bit Insert Flange Type (Brass Cadmium-Free)

                                                                            Tangless Insert (SUS304)

                                                                            E-Sert Fine

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

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

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

                                                                            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 (Flange Type) / HFB

                                                                            Sprue【1-100 Pieces Per Package】

                                                                            Dodge Bit Insert Standard SD (Brass Cadmium-Less)

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

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

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

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

                                                                            Brass Dutch Insert (Standard) / HSD

                                                                            Brass Dutch Insert (Flanged) / HFD

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

                                                                            Dodge Insert Flange Type (Brass Cadmium-Less)

                                                                            DODGE BET Insert (Standard), Double Sided Chamfer Type, Brass (Cadmium-Free)【1-8,000 Pieces Per Package】

                                                                            Techlock (SL)

                                                                            Screwsert (Type SCT)

                                                                            FLO-TECH (FTC Type)【1-1,000 Pieces Per Package】

                                                                            Stainless Steel Recoil【100 Pieces Per Package】

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

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

                                                                            Stainless Steel E-Sert (Unify) (UNF)

                                                                            Lock Type Sprew【100 Pieces Per Package】

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

                                                                            Brass Ultrasert II/HUD II

                                                                            Brass Ultrasert IV (Flanged) / HFU

                                                                            Nylon Nut Insert / NNI

                                                                            Days to Ship 5 Day(s) or more 11 Day(s) or more 11 Day(s) or more 11 Day(s) or more 5 Day(s) or more 2 Day(s) or more 4 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 4 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 5 Day(s) or more 5 Day(s) or more 5 Day(s) or more 5 Day(s) or more 5 Day(s) or more 9 Day(s) or more 5 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
                                                                            Screw Dia. M (after insertion)(mm)1.6 ~ 42 ~ 53 ~ 52 ~ 52.5 ~ 203 ~ 42.5 ~ 10101.6 ~ 41.6 ~ 43 ~ 53 ~ 53 ~ 52 ~ 42 ~ 162.6 ~ 62 ~ 73 ~ 52 ~ 53 ~ 52.6 ~ 52.6 ~ 4-31.6 ~ 4264 ~ 63 ~ 108 ~ 14--5 ~ 63 ~ 52.6 ~ 44 ~ 65 ~ 8
                                                                            Environmentally friendly-------------------------------------
                                                                            TypeStandardSelf-TappingSelf-TappingSelf-TappingStandardStandardTanglessStandardPress FitPress FitSelf-TappingSelf-TappingSelf-TappingPress FitStandardStandardStandardSelf-TappingSelf-TappingSelf-TappingPress FitPress FitStandardStandardStandardPress FitSelf-TappingPress FitStandardStandardStandardStandardStandardSelf-TappingPress FitPress FitPress Fit
                                                                            Characteristics/Applications-------------------------------------
                                                                            MaterialBrassStainless Steel (SUS303/304)Stainless Steel (SUS303/304)BrassStainless Steel (SUS303/304)BrassStainless Steel (SUS303/304)Stainless Steel (SUS303/304)BrassBrassStainless Steel (SUS303/304)BrassStainless Steel (SUS303/304)BrassStainless Steel (SUS303/304) / Phosphor BronzeBrassStainless Steel (SUS303/304)BrassAluminumBrassBrassBrassStainless Steel (SUS303/304)BrassBrassBrassBrassBrassStainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)AluminumBrassBrassNylon
                                                                            Screw TypeMetric (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) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadUnified (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Fine) ThreadUnified (Coarse) ThreadUnified (Fine) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) Thread
                                                                            Length L (after insertion) (D = Thread Dia. M)2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D
                                                                            ApplicationResin GeneralCast IronCast IronLight MetalLight Metal / Cast Iron / Resin GeneralResin GeneralLight MetalLight Metal / Cast Iron / Resin GeneralLight MetalLight MetalCast IronLight MetalCast IronLight MetalLight MetalResin General-Light MetalLight MetalLight MetalLight MetalLight MetalLight MetalResin GeneralResin General-Resin General------Light MetalLight MetalLight MetalResin General
                                                                            NotchNot ProvidedNot ProvidedNot ProvidedNot ProvidedProvidedNot ProvidedProvidedProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedProvidedNot ProvidedProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedProvidedProvidedProvidedProvidedProvidedNot ProvidedNot ProvidedNot ProvidedNot Provided
                                                                            Thread Dia. (After inserted), Unified(inch)----------------------1/4-20 ~ #4-40-------#6-32#10-32-----
                                                                            ShapeStandardStandardSlottedStandard-Standard--StandardStandardStandardSlottedSlottedStandard-StandardStandardStandardStandardSlottedStandardStandard-StandardStandardStandardStandardStandardStandardStandardSlottedStandard-StandardStandardStandardStandard
                                                                            Sales UnitLow Quantity (Available beginning with 1 pc.) / Box, Pkg.Box, Pkg.Box, Pkg.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.Box, Pkg.Box, Pkg.Box, Pkg.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.Box, Pkg.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.)Low Quantity (Available beginning with 1 pc.)-Box, Pkg.Box, Pkg.Box, Pkg.Low Quantity (Available beginning with 1 pc.)Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.
                                                                            Cleaning Method-------------------------------------

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