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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)
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)

    Techlock (SL)

      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

          Dodge Bit Insert Standard SD (Brass Cadmium-Less)

            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

                      Dodge Insert Flange Type (Brass Cadmium-Less)

                        Stainless Steel E-Sert Fine (Hemlock-Made)

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

                            E-Certs

                              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

                                    Brass Dutch Insert (Standard) / HSD

                                      Brass Dutch Insert (Flanged) / HFD

                                        Brass Ultrasert IV (Flanged) / HFU

                                          Sprue

                                            Tangless Insert (SUS304)

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

                                                Brass Ultrasert II/HUD II

                                                  Stainless Steel E-Sert (Unify) (UNF)

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

                                                      E-Sert Fine

                                                        Screwsert (Type SCT)

                                                          FLO-TECH (FTC Type)

                                                            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

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

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

                                                                          Nylon Nut Insert / NNI

                                                                          Brand

                                                                          TOKAI METAL INDUSTRY

                                                                          JAPAN DRIVEIT

                                                                          RECOIL

                                                                          TOKAI METAL INDUSTRY

                                                                          HIROSUGI-KEIKI

                                                                          TOKAI METAL INDUSTRY

                                                                          HIROSUGI-KEIKI

                                                                          TOKAI METAL INDUSTRY

                                                                          HIROSUGI-KEIKI

                                                                          HIROSUGI-KEIKI

                                                                          HIROSUGI-KEIKI

                                                                          TOKAI METAL INDUSTRY

                                                                          SUNCO

                                                                          HIROSUGI-KEIKI

                                                                          TSUGAMI

                                                                          HIROSUGI-KEIKI

                                                                          NIPPON SPREW

                                                                          HIROSUGI-KEIKI

                                                                          HIROSUGI-KEIKI

                                                                          HIROSUGI-KEIKI

                                                                          HIROSUGI-KEIKI

                                                                          NIPPON SPREW

                                                                          RECOIL

                                                                          HIROSUGI-KEIKI

                                                                          HIROSUGI-KEIKI

                                                                          SUNCO

                                                                          HIROSUGI-KEIKI

                                                                          TSUGAMI

                                                                          JAPAN DRIVEIT

                                                                          JAPAN DRIVEIT

                                                                          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】

                                                                          Techlock (SL)

                                                                          Recoil-Free (mm) SUS304

                                                                          Dodge Bit Insert Flange Type (Brass Cadmium-Free)

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

                                                                          Dodge Bit Insert Standard SD (Brass Cadmium-Less)

                                                                          Brass Bit Insert (Flange Type) / HFB

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

                                                                          Dodge Insert Flange Type (Brass Cadmium-Less)

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

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

                                                                          E-Certs

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

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

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

                                                                          Brass Dutch Insert (Standard) / HSD

                                                                          Brass Dutch Insert (Flanged) / HFD

                                                                          Brass Ultrasert IV (Flanged) / HFU

                                                                          Sprue【1-100 Pieces Per Package】

                                                                          Tangless Insert (SUS304)

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

                                                                          Brass Ultrasert II/HUD II

                                                                          Stainless Steel E-Sert (Unify) (UNF)

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

                                                                          E-Sert Fine

                                                                          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 (Unify) (UNC)【100 Pieces Per Package】

                                                                          Lock Type Sprew【100 Pieces Per Package】

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

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

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

                                                                          Nylon Nut Insert / NNI

                                                                          Days to Ship 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 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 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 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 7 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
                                                                          Screw Dia. M (after insertion)(mm)1.6 ~ 422 ~ 163 ~ 43 ~ 52.6 ~ 62 ~ 41.6 ~ 42 ~ 53 ~ 51.6 ~ 438 ~ 141.6 ~ 42.5 ~ 203 ~ 5-3 ~ 52.6 ~ 52.6 ~ 44 ~ 62 ~ 162.5 ~ 102 ~ 52.6 ~ 4-3 ~ 51062.5 ~ 63 ~ 102 ~ 7-5 ~ 63 ~ 52 ~ 53 ~ 55 ~ 8
                                                                          TypeStandardPress FitStandardStandardSelf-TappingStandardPress FitStandardSelf-TappingSelf-TappingPress FitStandardStandardPress FitStandardSelf-TappingStandardSelf-TappingPress FitPress FitPress FitStandardTanglessSelf-TappingPress FitStandardSelf-TappingStandardSelf-TappingPress FitStandardStandardStandardStandardSelf-TappingSelf-TappingSelf-TappingPress Fit
                                                                          MaterialBrassBrassStainless Steel (SUS303/304)BrassStainless Steel (SUS303/304)BrassBrassBrassStainless Steel (SUS303/304)Stainless Steel (SUS303/304)BrassBrassStainless Steel (SUS303/304)BrassStainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)BrassBrassBrassBrassStainless Steel (SUS303/304) / Phosphor BronzeStainless Steel (SUS303/304)BrassBrassStainless Steel (SUS303/304)BrassStainless Steel (SUS303/304)BrassBrassStainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)BrassAluminumAluminumNylon
                                                                          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) ThreadUnified (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadUnified (Fine) ThreadMetric (Coarse) ThreadMetric (Fine) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadUnified (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-Light MetalResin GeneralCast IronResin GeneralLight MetalResin GeneralCast IronCast IronLight MetalResin General-Light MetalLight Metal / Cast Iron / Resin GeneralCast IronLight MetalLight MetalLight MetalLight MetalLight MetalLight MetalLight MetalLight MetalLight Metal-Light MetalLight Metal / Cast Iron / Resin GeneralResin General-----Light MetalLight MetalLight MetalResin General
                                                                          NotchNot ProvidedNot ProvidedProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedProvidedNot ProvidedProvidedNot ProvidedProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedProvidedProvidedNot ProvidedNot ProvidedProvidedNot ProvidedProvidedNot ProvidedNot ProvidedProvidedProvidedProvidedProvidedNot ProvidedNot ProvidedNot ProvidedNot Provided
                                                                          Thread Dia. (After inserted), Unified(inch)----------------1/4-20 ~ #4-40--------#10-32------#6-32 ~ 7/8-9-----
                                                                          ShapeStandardStandard-StandardSlottedStandardStandardStandardStandardStandardStandardStandardStandardStandard-Slotted-SlottedStandardStandardStandard--StandardStandardStandardSlotted-StandardStandardStandardStandardSlotted-StandardStandardStandardStandard
                                                                          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.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.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.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.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.

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