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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
  • 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
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)

    Techlock (SL)

    • 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)

                          Brass Ultrasert IV (Flanged) / HFU

                            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

                                    Dodge Insert Flange Type (Brass Cadmium-Less)

                                      Screwsert (Type SCT)

                                        FLO-TECH (FTC Type)

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

                                            Sprue (Unified) (UNC)

                                              Tangless Insert (SUS304)

                                                Stainless Steel Recoil

                                                  Stainless Steel E-Sert Hemlock-Made

                                                    Stainless Steel E-Sert Fine (Hemlock-Made)

                                                      Stainless Steel E-Sert (Unify) (UNC)

                                                        Stainless Steel E-Sert (Unify) (UNF)

                                                          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

                                                                      Brass Dutch Insert (Flanged) / HFD

                                                                        Brass Ultrasert II/HUD II

                                                                          Nylon Nut Insert / NNI

                                                                          Brand

                                                                          TOKAI METAL INDUSTRY

                                                                          JAPAN DRIVEIT

                                                                          TOKAI METAL INDUSTRY

                                                                          RECOIL

                                                                          HIROSUGI-KEIKI

                                                                          TSUGAMI

                                                                          HIROSUGI-KEIKI

                                                                          NIPPON SPREW

                                                                          HIROSUGI-KEIKI

                                                                          HIROSUGI-KEIKI

                                                                          HIROSUGI-KEIKI

                                                                          HIROSUGI-KEIKI

                                                                          TOKAI METAL INDUSTRY

                                                                          HIROSUGI-KEIKI

                                                                          TSUGAMI

                                                                          TOKAI METAL INDUSTRY

                                                                          HIROSUGI-KEIKI

                                                                          HIROSUGI-KEIKI

                                                                          TOKAI METAL INDUSTRY

                                                                          JAPAN DRIVEIT

                                                                          JAPAN DRIVEIT

                                                                          HIROSUGI-KEIKI

                                                                          NIPPON SPREW

                                                                          RECOIL

                                                                          SUNCO

                                                                          SUNCO

                                                                          SUNCO

                                                                          SUNCO

                                                                          SUNCO

                                                                          SUNCO

                                                                          HIROSUGI-KEIKI

                                                                          HIROSUGI-KEIKI

                                                                          HIROSUGI-KEIKI

                                                                          HIROSUGI-KEIKI

                                                                          HIROSUGI-KEIKI

                                                                          HIROSUGI-KEIKI

                                                                          HIROSUGI-KEIKI

                                                                          HIROSUGI-KEIKI

                                                                          Product Series

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

                                                                          Techlock (SL)

                                                                          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)【1-8,000 Pieces Per Package】

                                                                          Brass Ultrasert IV (Flanged) / HFU

                                                                          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

                                                                          Dodge Insert Flange Type (Brass Cadmium-Less)

                                                                          Screwsert (Type SCT)

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

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

                                                                          Sprue (Unified) (UNC)【1-10 Pieces Per Package】

                                                                          Tangless Insert (SUS304)

                                                                          Stainless Steel Recoil【100 Pieces Per Package】

                                                                          Stainless Steel E-Sert Hemlock-Made【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】

                                                                          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

                                                                          Brass Dutch Insert (Flanged) / HFD

                                                                          Brass Ultrasert II/HUD II

                                                                          Nylon Nut Insert / NNI

                                                                          Days to Ship 4 Day(s) or more 4 Day(s) or more Same day 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 11 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 7 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 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 11 Day(s) or more 11 Day(s) or more
                                                                          Screw Dia. M (after insertion)(mm)1.6 ~ 423 ~ 42 ~ 163 ~ 52.5 ~ 202 ~ 52 ~ 162 ~ 53 ~ 53 ~ 51.6 ~ 41.6 ~ 44 ~ 6102.6 ~ 62 ~ 52 ~ 4362.5 ~ 61.6 ~ 4-2.5 ~ 103 ~ 102 ~ 78 ~ 14--5 ~ 63 ~ 53 ~ 53 ~ 53 ~ 52.6 ~ 52.6 ~ 42.6 ~ 45 ~ 8
                                                                          Environmentally friendly--------------------------------------
                                                                          TypeStandardPress FitStandardStandardSelf-TappingStandardSelf-TappingStandardSelf-TappingSelf-TappingSelf-TappingPress FitStandardPress FitStandardStandardSelf-TappingPress FitStandardSelf-TappingPress FitPress FitStandardTanglessStandardStandardStandardStandardStandardStandardSelf-TappingSelf-TappingSelf-TappingSelf-TappingPress FitPress FitPress FitPress Fit
                                                                          Characteristics/Applications--------------------------------------
                                                                          MaterialBrassBrassBrassStainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304) / Phosphor BronzeBrassBrassStainless Steel (SUS303/304)BrassBrassBrassStainless Steel (SUS303/304)BrassAluminumBrassBrassBrassBrassBrassStainless 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)AluminumBrassBrassBrassBrassNylon
                                                                          Screw TypeMetric (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) ThreadUnified (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Fine) ThreadUnified (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)2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D2.5D
                                                                          ApplicationResin General-Resin GeneralLight MetalCast IronLight Metal / Cast Iron / Resin GeneralCast IronLight MetalLight MetalLight MetalCast IronLight MetalResin GeneralLight MetalLight Metal / Cast Iron / Resin GeneralResin GeneralLight MetalLight MetalResin GeneralResin General-Light MetalLight MetalLight Metal------Light MetalCast IronLight MetalLight MetalLight MetalLight MetalLight MetalResin General
                                                                          NotchNot ProvidedNot ProvidedNot ProvidedProvidedNot ProvidedProvidedNot ProvidedProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedProvidedProvidedProvidedProvidedProvidedProvidedProvidedProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot Provided
                                                                          Thread Dia. (After inserted), Unified(inch)----------------------1/4-20 ~ #4-40----#6-32 ~ 7/8-9#10-32---------
                                                                          ShapeStandardStandardStandard-Slotted-Standard-StandardSlottedSlottedStandardStandardStandard-StandardStandardStandardStandardStandardStandardStandard--StandardStandardStandardSlottedStandard-StandardStandardStandardSlottedStandardStandardStandardStandard
                                                                          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.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.)-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.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.
                                                                          Cleaning Method--------------------------------------

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