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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
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  • 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)

      Recoil-Free (mm) SUS304

        Sprue

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

            E-Certs

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

                Tangless Insert (SUS304)

                  Dodge Insert Flange Type (Brass Cadmium-Less)

                    Stainless Steel/Insert Nut Threaded Type / IRU

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

                        Stainless Steel E-Sert (Unify) (UNC)

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

                            E-Sert Fine

                              Nylon Nut Insert / NNI

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

                                  Dodge Bit Insert Flange Type  (Brass Cadmium-Free)

                                    Techlock (SL)

                                      Screwsert (Type SCT)

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

                                          Sprue (Unified) (UNC)

                                            Dodge Bit Insert Standard SD (Brass Cadmium-Less)

                                              Stainless Steel E-Sert Hemlock-Made

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

                                                  Brass Bit Insert (Flange Type) / HFB

                                                    FLO-TECH (FTC Type)

                                                      Stainless Steel Recoil

                                                        Stainless Steel E-Sert Fine (Hemlock-Made)

                                                          Stainless Steel E-Sert (Unify) (UNF)

                                                            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

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

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

                                                                        Brass Dutch Insert (Standard) / HSD

                                                                          Brass Dutch Insert (Flanged) / HFD

                                                                            Brass Ultrasert II/HUD II

                                                                              Brass Ultrasert IV (Flanged) / HFU

                                                                              Brand

                                                                              TOKAI METAL INDUSTRY

                                                                              RECOIL

                                                                              NIPPON SPREW

                                                                              HIROSUGI-KEIKI

                                                                              TSUGAMI

                                                                              HIROSUGI-KEIKI

                                                                              RECOIL

                                                                              TOKAI METAL INDUSTRY

                                                                              HIROSUGI-KEIKI

                                                                              HIROSUGI-KEIKI

                                                                              SUNCO

                                                                              HIROSUGI-KEIKI

                                                                              TSUGAMI

                                                                              HIROSUGI-KEIKI

                                                                              TOKAI METAL INDUSTRY

                                                                              TOKAI METAL INDUSTRY

                                                                              JAPAN DRIVEIT

                                                                              JAPAN DRIVEIT

                                                                              HIROSUGI-KEIKI

                                                                              NIPPON SPREW

                                                                              TOKAI METAL INDUSTRY

                                                                              SUNCO

                                                                              HIROSUGI-KEIKI

                                                                              HIROSUGI-KEIKI

                                                                              JAPAN DRIVEIT

                                                                              SUNCO

                                                                              SUNCO

                                                                              SUNCO

                                                                              SUNCO

                                                                              HIROSUGI-KEIKI

                                                                              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】

                                                                              Recoil-Free (mm) SUS304

                                                                              Sprue【1-100 Pieces Per Package】

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

                                                                              E-Certs【1-100 Pieces Per Package】

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

                                                                              Tangless Insert (SUS304)

                                                                              Dodge Insert Flange Type (Brass Cadmium-Less)

                                                                              Stainless Steel/Insert Nut Threaded Type / IRU

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

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

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

                                                                              E-Sert Fine

                                                                              Nylon Nut Insert / NNI

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

                                                                              Dodge Bit Insert Flange Type (Brass Cadmium-Free)

                                                                              Techlock (SL)

                                                                              Screwsert (Type SCT)

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

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

                                                                              Dodge Bit Insert Standard SD (Brass Cadmium-Less)

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

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

                                                                              Brass Bit Insert (Flange Type) / HFB

                                                                              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) (UNF)

                                                                              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

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

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

                                                                              Brass Dutch Insert (Standard) / HSD

                                                                              Brass Dutch Insert (Flanged) / HFD

                                                                              Brass Ultrasert II/HUD II

                                                                              Brass Ultrasert IV (Flanged) / HFU

                                                                              Days to Ship 5 Day(s) or more 4 Day(s) or more 4 Day(s) or more 11 Day(s) or more 5 Day(s) or more 11 Day(s) or more 4 Day(s) or more 5 Day(s) or more 11 Day(s) or more 11 Day(s) or more 5 Day(s) or more 11 Day(s) or more 5 Day(s) or more 11 Day(s) or more 5 Day(s) or more 2 Day(s) or more 5 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 11 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 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 11 Day(s) or more
                                                                              Screw Dia. M (after insertion)(mm)1.6 ~ 42 ~ 162 ~ 161.6 ~ 42.5 ~ 201.6 ~ 42.5 ~ 1032 ~ 52 ~ 5-3 ~ 5105 ~ 81.6 ~ 43 ~ 4263 ~ 5-2.6 ~ 62 ~ 73 ~ 52 ~ 42.5 ~ 63 ~ 108 ~ 14-5 ~ 63 ~ 52 ~ 53 ~ 53 ~ 53 ~ 52.6 ~ 52.6 ~ 42.6 ~ 44 ~ 6
                                                                              Environmentally friendly--------------------------------------
                                                                              TypeStandardStandardStandardPress FitStandardPress FitTanglessStandardSelf-TappingSelf-TappingStandardSelf-TappingStandardPress FitStandardStandardPress FitSelf-TappingSelf-TappingStandardStandardStandardSelf-TappingPress FitPress FitStandardStandardStandardStandardSelf-TappingSelf-TappingSelf-TappingSelf-TappingSelf-TappingPress FitPress FitPress FitPress Fit
                                                                              Characteristics/Applications--------------------------------------
                                                                              MaterialBrassStainless Steel (SUS303/304)Stainless Steel (SUS303/304) / Phosphor BronzeBrassStainless Steel (SUS303/304)BrassStainless Steel (SUS303/304)BrassStainless Steel (SUS303/304)BrassStainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)NylonBrassBrassBrassBrassBrassStainless Steel (SUS303/304)BrassStainless Steel (SUS303/304)Stainless Steel (SUS303/304)BrassBrassStainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)BrassAluminumAluminumBrassStainless Steel (SUS303/304)BrassBrassBrassBrass
                                                                              Screw TypeMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadUnified (Coarse) ThreadMetric (Coarse) ThreadMetric (Fine) 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 (Fine) ThreadMetric (Coarse) 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 GeneralLight MetalLight MetalLight MetalLight Metal / Cast Iron / Resin GeneralLight MetalLight MetalResin GeneralCast IronLight Metal-Cast IronLight Metal / Cast Iron / Resin GeneralResin GeneralResin GeneralResin General-Resin GeneralLight MetalLight MetalResin General-Cast IronLight Metal-----Light MetalLight MetalLight MetalLight MetalCast IronLight MetalLight MetalLight MetalLight Metal
                                                                              NotchNot ProvidedProvidedProvidedNot ProvidedProvidedNot ProvidedProvidedNot ProvidedNot ProvidedNot ProvidedProvidedNot ProvidedProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedProvidedNot ProvidedProvidedNot ProvidedNot ProvidedNot ProvidedProvidedProvidedProvidedProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot Provided
                                                                              Thread Dia. (After inserted), Unified(inch)----------#6-32 ~ 7/8-9--------1/4-20 ~ #4-40-------#10-32----------
                                                                              ShapeStandard--Standard-Standard-StandardStandardStandardSlottedSlotted-StandardStandardStandardStandardStandardSlotted-StandardStandardStandardStandardStandardStandardStandardStandard-StandardStandardStandardSlottedSlottedStandardStandardStandardStandard
                                                                              Sales UnitLow 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.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.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.)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.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.
                                                                              Cleaning Method--------------------------------------

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