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Insert(Length L (after insertion) (D = Thread Dia. M):1D)

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
Brand
Product Series
CAD
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)

  • On Sale Till 31/03/2025

Thread Inserts

    Ultrasert UD2 / UD4 (Brass Cadmium-Free)

      Techlock (SL)

        Nitronic 60 Insert

          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

              Insert SUS316

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

                  Dodge Bit Insert Standard SD (Brass Cadmium-Less)

                    Brass Bit Insert (Flange Type) / HFB

                      Stainless Steel/Insert Nut Threaded Type / IRU

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

                        • On Sale Till 31/03/2025

                        Thread Insert (Box)

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

                            Stainless Steel E-Sert Fine (Hemlock-Made)

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

                                Tangless Insert Unified Coarse

                                • On Sale Till 31/03/2025

                                Thread Inserts/Tangless

                                  E-Certs

                                    Insert Phosphor Bronze

                                      Sparrow (Type SP)

                                        Coil Thread R

                                          Sprue (Unified) (UNC)

                                            Lock Recoil (mm) SUS304

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

                                              • On Sale Till 31/03/2025

                                              Tangless Insert Metric Coarse

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

                                                  Sprue

                                                    Recoil-Free (Specified mm) SUS304

                                                      Tangless Insert (SUS304)

                                                        Tangless insert metric coarsephosphor bronze

                                                          Stainless Steel Tangless Insert

                                                            Lock E-Sert (Fine Mesh)

                                                              Thread Insert (Box)

                                                                Recoil Packet (Milli)

                                                                  Recoil Free (UNC) SUS304

                                                                    Recoil-Free (UNF) SUS304

                                                                      Insert, Inconel X-750

                                                                        Tangless insert metric coarselocking

                                                                          Tangless insert metric coarsetaping packaging

                                                                            Stainless Steel E-Sert (Unify) (UNF)

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

                                                                                Brass Ultrasert IV/HUD IV

                                                                                Brand

                                                                                TOKAI METAL INDUSTRY

                                                                                MISUMI

                                                                                TOKAI METAL INDUSTRY

                                                                                JAPAN DRIVEIT

                                                                                RECOIL

                                                                                RECOIL

                                                                                TOKAI METAL INDUSTRY

                                                                                HIROSUGI-KEIKI

                                                                                RECOIL

                                                                                TOKAI METAL INDUSTRY

                                                                                TOKAI METAL INDUSTRY

                                                                                HIROSUGI-KEIKI

                                                                                HIROSUGI-KEIKI

                                                                                HIROSUGI-KEIKI

                                                                                MISUMI

                                                                                HIROSUGI-KEIKI

                                                                                SUNCO

                                                                                HIROSUGI-KEIKI

                                                                                ACCURATE

                                                                                MISUMI

                                                                                TSUGAMI

                                                                                RECOIL

                                                                                JAPAN DRIVEIT

                                                                                ACCURATE

                                                                                NIPPON SPREW

                                                                                RECOIL

                                                                                HIROSUGI-KEIKI

                                                                                ACCURATE

                                                                                HIROSUGI-KEIKI

                                                                                NIPPON SPREW

                                                                                RECOIL

                                                                                RECOIL

                                                                                ACCURATE

                                                                                SUNCO

                                                                                SUNCO

                                                                                MISUMI

                                                                                RECOIL

                                                                                RECOIL

                                                                                RECOIL

                                                                                RECOIL

                                                                                ACCURATE

                                                                                ACCURATE

                                                                                SUNCO

                                                                                HIROSUGI-KEIKI

                                                                                HIROSUGI-KEIKI

                                                                                Product Series

                                                                                Dodge Bit Insert (Standard) SB Brass (Cadmium-Free)【1-8,000 Pieces Per Package】

                                                                                Thread Inserts

                                                                                Ultrasert UD2 / UD4 (Brass Cadmium-Free)【1-800 Pieces Per Package】

                                                                                Techlock (SL)

                                                                                Nitronic 60 Insert

                                                                                Recoil-Free (mm) SUS304【1-3 Pieces Per Package】

                                                                                Dodge Bit Insert Flange Type (Brass Cadmium-Free)【1-3,000 Pieces Per Package】

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

                                                                                Insert SUS316

                                                                                DODGE BET Insert (Standard), Double Sided Chamfer Type, Brass (Cadmium-Free)【1-15,000 Pieces Per Package】

                                                                                Dodge Bit Insert Standard SD (Brass Cadmium-Less)

                                                                                Brass Bit Insert (Flange Type) / HFB

                                                                                Stainless Steel/Insert Nut Threaded Type / IRU

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

                                                                                Thread Insert (Box)【100 Pieces Per Package】

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

                                                                                Stainless Steel E-Sert Fine (Hemlock-Made)【1-100 Pieces Per Package】

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

                                                                                Tangless Insert Unified Coarse

                                                                                Thread Inserts/Tangless

                                                                                E-Certs

                                                                                Insert Phosphor Bronze

                                                                                Sparrow (Type SP)

                                                                                Coil Thread R

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

                                                                                Lock Recoil (mm) SUS304

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

                                                                                Tangless Insert Metric Coarse【1-50 Pieces Per Package】

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

                                                                                Sprue【1-100 Pieces Per Package】

                                                                                Recoil-Free (Specified mm) SUS304

                                                                                Tangless Insert (SUS304)

                                                                                Tangless insert metric coarsephosphor bronze

                                                                                Stainless Steel Tangless Insert

                                                                                Lock E-Sert (Fine Mesh)【1-100 Pieces Per Package】

                                                                                Thread Insert (Box)【100 Pieces Per Package】

                                                                                Recoil Packet (Milli)【5-10 Pieces Per Package】

                                                                                Recoil Free (UNC) SUS304

                                                                                Recoil-Free (UNF) SUS304

                                                                                Insert, Inconel X-750

                                                                                Tangless insert metric coarselocking

                                                                                Tangless insert metric coarsetaping packaging

                                                                                Stainless Steel E-Sert (Unify) (UNF)【1-100 Pieces Per Package】

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

                                                                                Brass Ultrasert IV/HUD IV

                                                                                CAD
                                                                                • 2D / 3D
                                                                                • 2D / 3D
                                                                                • 2D / 3D
                                                                                • 2D / 3D
                                                                                • 2D / 3D
                                                                                Days to Ship Same day or more Same day or more Same day or more 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 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 Same day or more 11 Day(s) or more 4 Day(s) or more 11 Day(s) or more 8 Day(s) or more 4 Day(s) or more 4 Day(s) or more 4 Day(s) or more 4 Day(s) or more 8 Day(s) or more 4 Day(s) or more 4 Day(s) or more 11 Day(s) or more Same day or more 11 Day(s) or more 4 Day(s) or more 4 Day(s) or more 4 Day(s) or more 8 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 7 Day(s) or more 4 Day(s) or more 7 Day(s) or more 4 Day(s) or more 4 Day(s) or more 11 Day(s) or more 11 Day(s) or more
                                                                                Screw Dia. M (after insertion)(mm)2 ~ 63 ~ 162.6 ~ 103 ~ 103 ~ 122 ~ 423 ~ 82.6 ~ 83 ~ 161.7 ~ 653 ~ 42 ~ 82 ~ 53 ~ 82.6 ~ 86 ~ 302 ~ 5-2.5 ~ 102 ~ 243 ~ 2443 ~ 6-3 ~ 202.6 ~ 82 ~ 242.6 ~ 82 ~ 308 ~ 242.5 ~ 123 ~ 62 ~ 168 ~ 332.5 ~ 83 ~ 16--3 ~ 122.5 ~ 122.5 ~ 5-2 ~ 83 ~ 10
                                                                                TypeStandardStandardStandardPress FitStandardStandardStandardSelf-TappingStandardStandardStandardPress FitSelf-TappingPress FitStandardSelf-TappingStandardPress FitTanglessTanglessStandardStandardPress FitStandardStandardStandardSelf-TappingTanglessSelf-TappingStandardStandardTanglessTanglessTanglessStandardTanglessStandardStandardStandardStandardTanglessTanglessStandardSelf-TappingPress Fit
                                                                                MaterialBrassStainless Steel (SUS303/304)BrassBrassNitrox 60Stainless Steel (SUS303/304)BrassStainless Steel (SUS303/304)Stainless Steel (SUS316)BrassBrassBrassStainless Steel (SUS303/304)BrassStainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)BrassStainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)Phosphor BronzeBrassStainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)BrassStainless Steel (SUS303/304) / Phosphor BronzeStainless Steel (SUS303/304)Stainless Steel (SUS303/304)Phosphor BronzeStainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)Inconel X-750Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)BrassBrass
                                                                                Screw TypeMetric (Coarse) ThreadMetric (Coarse) Thread / Metric (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) ThreadMetric (Fine) ThreadMetric (Coarse) ThreadUnified (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadUnified (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) Thread / Metric (Fine) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Fine) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Fine) ThreadMetric (Coarse) ThreadMetric (Coarse) Thread / Metric (Fine) ThreadUnified (Coarse) ThreadUnified (Fine) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadUnified (Fine) ThreadMetric (Coarse) ThreadMetric (Coarse) Thread
                                                                                Length L (after insertion) (D = Thread Dia. M)1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D
                                                                                ApplicationResin GeneralLight MetalResin General-Light MetalLight MetalResin GeneralCast IronLight MetalResin GeneralResin GeneralLight MetalCast IronLight MetalLight MetalCast Iron-Light MetalLight Metal / Cast Iron / Resin GeneralLight MetalLight Metal / Cast Iron / Resin GeneralLight MetalResin GeneralLight Metal / Cast Iron / Resin GeneralLight MetalLight MetalCast IronLight Metal / Cast Iron / Resin GeneralLight MetalLight MetalLight MetalLight MetalLight Metal / Cast Iron / Resin General--Light MetalLight MetalLight MetalLight MetalLight Metal / Cast IronLight Metal / Cast Iron / Resin GeneralLight Metal / Cast Iron / Resin General-Light MetalLight Metal
                                                                                NotchNot ProvidedProvidedNot ProvidedNot ProvidedProvidedProvidedNot ProvidedNot ProvidedProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedProvidedNot ProvidedProvidedNot Provided-Not ProvidedProvidedProvidedNot Provided-ProvidedProvidedNot ProvidedNot ProvidedNot ProvidedProvidedProvidedNot Provided-ProvidedProvidedNot ProvidedProvidedProvidedProvidedProvided--ProvidedNot ProvidedNot Provided
                                                                                Thread Dia. (After inserted), Unified(inch)------------------1/4 ~ 10-----1/2-13 ~ #10-24------------1/2-13 ~ #10-241/4-28 ~ #10-32---1/2-20 ~ #8-36--
                                                                                ShapeStandard-StandardStandard--StandardSlotted-StandardStandardStandardStandardStandard-StandardStandardStandard----Standard---Slotted-Slotted----Standard--------StandardStandardStandard
                                                                                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.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.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.Low Quantity (Available beginning with 1 pc.) / 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.)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.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.)Low Quantity (Available beginning with 1 pc.) / Box, Pkg.Box, Pkg.Box, Pkg.Low Quantity (Available beginning with 1 pc.)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.

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