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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
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  • Same day
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  • 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)
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)

  • On Sale Till 31/03/2025

Thread Inserts

    Techlock (SL)

      Dodge Bit Insert Flange Type  (Brass Cadmium-Free)

        Recoil-Free (mm) SUS304

          Ultrasert UD2 / UD4 (Brass Cadmium-Free)

            Brass Bit Insert (Flange Type) / HFB

              Insert SUS316

                Nitronic 60 Insert

                • On Sale Till 31/03/2025

                Thread Inserts/Tangless

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

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

                      Lock Recoil (mm) SUS304

                        Sparrow (Type SP)

                        • On Sale Till 31/03/2025

                        Thread Insert (Box)

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

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

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

                                E-Certs

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

                                    Coil Thread R

                                      Tangless Insert Unified Fine

                                        Tangless insert metric coarsetaping packaging

                                          Stainless Steel/Insert Nut Threaded Type / IRU

                                            Sprue

                                              Dodge Bit Insert Standard SD (Brass Cadmium-Less)

                                                Recoil Packet (Milli)

                                                  Insert Phosphor Bronze

                                                    Tangless Insert (SUS304)

                                                      Stainless Steel E-Sert Fine (Hemlock-Made)

                                                        Screw Reinforcement Tangless Insert

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

                                                          • On Sale Till 31/03/2025

                                                          Tangless Insert Metric Coarse

                                                            Sprue (Unified) (UNC)

                                                              E-Sert Fine

                                                                E-Sert Unified (UNC)

                                                                  Recoil-Free (Specified mm) SUS304

                                                                    Insert, Inconel X-750

                                                                      Tangless insert metric coarselocking

                                                                        Tangless insert metric coarsephosphor bronze

                                                                          Male Screw Repair Coil Thread -R

                                                                            Lock E-Sert

                                                                              Tangless Insert Unified Coarse

                                                                                Thread Insert (Box)

                                                                                  Sprue (Fine, P=1.25)

                                                                                  Brand

                                                                                  TOKAI METAL INDUSTRY

                                                                                  MISUMI

                                                                                  JAPAN DRIVEIT

                                                                                  TOKAI METAL INDUSTRY

                                                                                  RECOIL

                                                                                  TOKAI METAL INDUSTRY

                                                                                  HIROSUGI-KEIKI

                                                                                  RECOIL

                                                                                  RECOIL

                                                                                  MISUMI

                                                                                  HIROSUGI-KEIKI

                                                                                  TOKAI METAL INDUSTRY

                                                                                  RECOIL

                                                                                  JAPAN DRIVEIT

                                                                                  MISUMI

                                                                                  HIROSUGI-KEIKI

                                                                                  HIROSUGI-KEIKI

                                                                                  HIROSUGI-KEIKI

                                                                                  TSUGAMI

                                                                                  HIROSUGI-KEIKI

                                                                                  ACCURATE

                                                                                  ACCURATE

                                                                                  ACCURATE

                                                                                  HIROSUGI-KEIKI

                                                                                  NIPPON SPREW

                                                                                  TOKAI METAL INDUSTRY

                                                                                  RECOIL

                                                                                  RECOIL

                                                                                  RECOIL

                                                                                  SUNCO

                                                                                  KS SANGYO

                                                                                  HIROSUGI-KEIKI

                                                                                  ACCURATE

                                                                                  NIPPON SPREW

                                                                                  TSUGAMI

                                                                                  TSUGAMI

                                                                                  RECOIL

                                                                                  RECOIL

                                                                                  ACCURATE

                                                                                  ACCURATE

                                                                                  KS SANGYO

                                                                                  SUNCO

                                                                                  ACCURATE

                                                                                  MISUMI

                                                                                  NIPPON SPREW

                                                                                  Product Series

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

                                                                                  Thread Inserts

                                                                                  Techlock (SL)

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

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

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

                                                                                  Brass Bit Insert (Flange Type) / HFB

                                                                                  Insert SUS316

                                                                                  Nitronic 60 Insert

                                                                                  Thread Inserts/Tangless

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

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

                                                                                  Lock Recoil (mm) SUS304

                                                                                  Sparrow (Type SP)

                                                                                  Thread Insert (Box)【100 Pieces Per Package】

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

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

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

                                                                                  E-Certs

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

                                                                                  Coil Thread R

                                                                                  Tangless Insert Unified Fine

                                                                                  Tangless insert metric coarsetaping packaging

                                                                                  Stainless Steel/Insert Nut Threaded Type / IRU

                                                                                  Sprue【1-100 Pieces Per Package】

                                                                                  Dodge Bit Insert Standard SD (Brass Cadmium-Less)

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

                                                                                  Insert Phosphor Bronze

                                                                                  Tangless Insert (SUS304)

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

                                                                                  Screw Reinforcement Tangless Insert【10-20 Pieces Per Package】

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

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

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

                                                                                  E-Sert Fine

                                                                                  E-Sert Unified (UNC)

                                                                                  Recoil-Free (Specified mm) SUS304

                                                                                  Insert, Inconel X-750

                                                                                  Tangless insert metric coarselocking

                                                                                  Tangless insert metric coarsephosphor bronze

                                                                                  Male Screw Repair Coil Thread -R【20 Pieces Per Package】

                                                                                  Lock E-Sert【1-100 Pieces Per Package】

                                                                                  Tangless Insert Unified Coarse

                                                                                  Thread Insert (Box)【100 Pieces Per Package】

                                                                                  Sprue (Fine, P=1.25)

                                                                                  CAD
                                                                                  • 2D / 3D
                                                                                  • 2D / 3D
                                                                                  • 2D / 3D
                                                                                  • 2D / 3D
                                                                                  • 2D / 3D
                                                                                  Days to Ship Same day or more Same day or more 4 Day(s) or more Same day 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 4 Day(s) or more 4 Day(s) or more 5 Day(s) or more Same day 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 8 Day(s) or more 6 Day(s) or more 4 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 5 Day(s) or more 11 Day(s) or more Same day 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 8 Day(s) or more 5 Day(s) or more 4 Day(s) or more 8 Day(s) or more 4 Day(s) or more 4 Day(s) or more
                                                                                  Screw Dia. M (after insertion)(mm)2 ~ 63 ~ 163 ~ 103 ~ 82 ~ 422.6 ~ 103 ~ 43 ~ 163 ~ 122.5 ~ 102.6 ~ 81.7 ~ 63 ~ 2443 ~ 82 ~ 52.6 ~ 82.6 ~ 82 ~ 242 ~ 53 ~ 6-2.5 ~ 52 ~ 82 ~ 3053 ~ 163 ~ 242.5 ~ 126 ~ 302 ~ 122 ~ 82 ~ 24-10 ~ 16-8 ~ 243 ~ 122.5 ~ 123 ~ 63 ~ 63 ~ 16-2.5 ~ 810 ~ 20
                                                                                  Environmentally friendly---------------------------------------------
                                                                                  TypeStandardStandardPress FitStandardStandardStandardPress FitStandardStandardTanglessSelf-TappingStandardStandardPress FitStandardPress FitSelf-TappingSelf-TappingStandardPress FitStandardTanglessTanglessSelf-TappingStandardStandardStandardStandardTanglessStandardTanglessSelf-TappingTanglessStandardStandardStandardStandardStandardTanglessTanglessStandardStandardTanglessTanglessStandard
                                                                                  Characteristics/Applications---------------------------------------------
                                                                                  MaterialBrassStainless Steel (SUS303/304)BrassBrassStainless Steel (SUS303/304)BrassBrassStainless Steel (SUS316)Nitrox 60Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)BrassStainless Steel (SUS303/304)BrassStainless Steel (SUS303/304)BrassBrassStainless Steel (SUS303/304)Stainless Steel (SUS303/304)BrassStainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304) / Phosphor BronzeBrassStainless Steel (SUS303/304)Phosphor BronzeStainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)BrassStainless 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)Phosphor BronzeStainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)
                                                                                  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 (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadUnified (Fine) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) Thread / Metric (Fine) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Fine) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) Thread / Metric (Fine) ThreadUnified (Coarse) ThreadMetric (Fine) ThreadUnified (Coarse) ThreadMetric (Fine) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadUnified (Coarse) ThreadMetric (Coarse) ThreadMetric (Fine) Thread
                                                                                  Length L (after insertion) (D = Thread Dia. M)1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D
                                                                                  ApplicationResin GeneralLight Metal-Resin GeneralLight MetalResin GeneralLight MetalLight MetalLight MetalLight MetalCast IronResin GeneralLight MetalResin GeneralLight MetalLight MetalLight MetalCast IronLight Metal / Cast Iron / Resin GeneralLight MetalLight Metal / Cast Iron / Resin GeneralLight Metal / Cast Iron / Resin GeneralLight Metal / Cast Iron / Resin GeneralCast IronLight MetalResin GeneralLight MetalLight MetalLight Metal-Light Metal / Cast Iron / Resin GeneralLight MetalLight Metal / Cast Iron / Resin GeneralLight MetalLight Metal / Cast Iron / Resin GeneralLight Metal / Cast Iron / Resin GeneralLight MetalLight Metal / Cast IronLight Metal / Cast Iron / Resin GeneralLight Metal / Cast Iron / Resin GeneralLight Metal / Cast Iron / Resin General-Light Metal / Cast Iron / Resin GeneralLight MetalLight Metal
                                                                                  NotchNot ProvidedProvidedNot ProvidedNot ProvidedProvidedNot ProvidedNot ProvidedProvidedProvidedNot ProvidedNot ProvidedNot ProvidedProvidedNot ProvidedProvidedNot ProvidedNot ProvidedNot ProvidedProvidedNot Provided---Not ProvidedProvidedNot ProvidedProvidedProvidedNot ProvidedProvidedProvidedNot ProvidedNot ProvidedProvidedProvidedProvidedProvidedProvided--ProvidedProvided-Not ProvidedProvided
                                                                                  Thread Dia. (After inserted), Unified(inch)---------------------1/4 ~ 10-----------1/2-13 ~ #10-24--------1/4 ~ 10--
                                                                                  ShapeStandard-StandardStandard-StandardStandard---SlottedStandard-Standard-StandardSlottedSlotted-Standard---Standard-Standard---StandardStandardStandard--------Standard----
                                                                                  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.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.)Low Quantity (Available beginning with 1 pc.)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.) / 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.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.-Box, Pkg.Low Quantity (Available beginning with 1 pc.)
                                                                                  Cleaning Method---------------------------------------------

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