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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
  • 1 Day(s) or Less
  • 2 Day(s) or Less
  • 4 Day(s) or Less
  • 5 Day(s) or Less
  • 6 Day(s) or Less
  • 7 Day(s) or Less
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  • 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)

      E-Certs

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

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

            Recoil-Free (mm) SUS304

              Brass Bit Insert (Flange Type) / HFB

                Dodge Bit Insert Flange Type  (Brass Cadmium-Free)

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

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

                      Tangless Insert (SUS304)

                        Stainless Steel/Insert Nut Threaded Type / IRU

                          Sprue

                            E-Sert Fine

                              Brass Dutch Insert (Standard) / HSD

                                Dodge Insert Flange Type (Brass Cadmium-Less)

                                  Dodge Bit Insert Standard SD (Brass Cadmium-Less)

                                    Techlock (SL)

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

                                        Sprue (Unified) (UNC)

                                          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) IRL-B/IRL-K

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

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

                                                    Screwsert (Type SCT)

                                                      FLO-TECH (FTC Type)

                                                        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

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

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

                                                                        Brass Dutch Insert (Flanged) / HFD

                                                                          Brass Ultrasert II/HUD II

                                                                            Brass Ultrasert IV (Flanged) / HFU

                                                                              Nylon Nut Insert / NNI

                                                                              Brand

                                                                              TOKAI METAL INDUSTRY

                                                                              TSUGAMI

                                                                              HIROSUGI-KEIKI

                                                                              HIROSUGI-KEIKI

                                                                              RECOIL

                                                                              HIROSUGI-KEIKI

                                                                              TOKAI METAL INDUSTRY

                                                                              HIROSUGI-KEIKI

                                                                              TOKAI METAL INDUSTRY

                                                                              RECOIL

                                                                              HIROSUGI-KEIKI

                                                                              NIPPON SPREW

                                                                              TSUGAMI

                                                                              HIROSUGI-KEIKI

                                                                              TOKAI METAL INDUSTRY

                                                                              TOKAI METAL INDUSTRY

                                                                              JAPAN DRIVEIT

                                                                              HIROSUGI-KEIKI

                                                                              NIPPON SPREW

                                                                              HIROSUGI-KEIKI

                                                                              HIROSUGI-KEIKI

                                                                              HIROSUGI-KEIKI

                                                                              HIROSUGI-KEIKI

                                                                              HIROSUGI-KEIKI

                                                                              JAPAN DRIVEIT

                                                                              JAPAN DRIVEIT

                                                                              SUNCO

                                                                              SUNCO

                                                                              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)【1-1,000 Pieces Per Package】

                                                                              E-Certs

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

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

                                                                              Recoil-Free (mm) SUS304

                                                                              Brass Bit Insert (Flange Type) / HFB

                                                                              Dodge Bit Insert Flange Type (Brass Cadmium-Free)

                                                                              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】

                                                                              Tangless Insert (SUS304)

                                                                              Stainless Steel/Insert Nut Threaded Type / IRU

                                                                              Sprue【1-100 Pieces Per Package】

                                                                              E-Sert Fine

                                                                              Brass Dutch Insert (Standard) / HSD

                                                                              Dodge Insert Flange Type (Brass Cadmium-Less)

                                                                              Dodge Bit Insert Standard SD (Brass Cadmium-Less)

                                                                              Techlock (SL)

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

                                                                              Sprue (Unified) (UNC)【1-100 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) IRL-B/IRL-K

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

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

                                                                              Screwsert (Type SCT)

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

                                                                              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】

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

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

                                                                              Brass Dutch Insert (Flanged) / HFD

                                                                              Brass Ultrasert II/HUD II

                                                                              Brass Ultrasert IV (Flanged) / HFU

                                                                              Nylon Nut Insert / NNI

                                                                              Days to Ship 5 Day(s) or more 5 Day(s) or more 11 Day(s) or more 11 Day(s) or more 4 Day(s) or more 11 Day(s) or more 2 Day(s) or more 11 Day(s) or more 5 Day(s) or more 4 Day(s) or more 11 Day(s) or more 4 Day(s) or more 5 Day(s) or more 11 Day(s) or more 5 Day(s) or more 5 Day(s) or more 5 Day(s) or more 11 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 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 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
                                                                              Screw Dia. M (after insertion)(mm)1.6 ~ 42.5 ~ 201.6 ~ 43 ~ 52 ~ 162 ~ 43 ~ 41.6 ~ 41.6 ~ 42.5 ~ 102 ~ 52 ~ 16102.6 ~ 532.6 ~ 622 ~ 5-3 ~ 53 ~ 52 ~ 53 ~ 53 ~ 562.5 ~ 63 ~ 102 ~ 78 ~ 14--5 ~ 63 ~ 53 ~ 52.6 ~ 42.6 ~ 44 ~ 65 ~ 8
                                                                              Environmentally friendly--------------------------------------
                                                                              TypeStandardStandardPress FitSelf-TappingStandardPress FitStandardPress FitStandardTanglessSelf-TappingStandardStandardPress FitStandardStandardPress FitSelf-TappingStandardSelf-TappingSelf-TappingSelf-TappingSelf-TappingSelf-TappingSelf-TappingPress FitStandardStandardStandardStandardStandardStandardSelf-TappingSelf-TappingPress FitPress FitPress FitPress Fit
                                                                              Characteristics/Applications--------------------------------------
                                                                              MaterialBrassStainless Steel (SUS303/304)BrassStainless Steel (SUS303/304)Stainless Steel (SUS303/304)BrassBrassBrassBrassStainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304) / Phosphor BronzeStainless Steel (SUS303/304)BrassBrassBrassBrassBrassStainless Steel (SUS303/304)BrassStainless Steel (SUS303/304)AluminumBrassBrassBrassBrassStainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)AluminumStainless Steel (SUS303/304)BrassBrassBrassNylon
                                                                              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 (Fine) 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 (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) 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 GeneralLight Metal / Cast Iron / Resin GeneralLight MetalCast IronLight MetalLight MetalResin GeneralLight MetalResin GeneralLight MetalCast IronLight MetalLight Metal / Cast Iron / Resin GeneralLight MetalResin GeneralResin General-Light MetalLight MetalLight MetalCast IronLight MetalLight MetalLight MetalResin General-------Light MetalCast IronLight MetalLight MetalLight MetalResin General
                                                                              NotchNot ProvidedProvidedNot ProvidedNot ProvidedProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedProvidedNot ProvidedProvidedProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedProvidedProvidedProvidedProvidedProvidedProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot Provided
                                                                              Thread Dia. (After inserted), Unified(inch)------------------1/4-20 ~ #4-40----------#6-32 ~ 7/8-9#10-32-------
                                                                              ShapeStandard-StandardSlotted-StandardStandardStandardStandard-Standard--StandardStandardStandardStandardStandard-StandardStandardStandardSlottedSlottedStandardStandardStandardStandardStandardSlottedStandard-StandardSlottedStandardStandardStandardStandard
                                                                              Sales UnitLow Quantity (Available beginning with 1 pc.) / Box, Pkg.Low Quantity (Available beginning with 1 pc.)Box, Pkg.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.) / 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.) / 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.Low Quantity (Available beginning with 1 pc.)Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.
                                                                              Cleaning Method--------------------------------------

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