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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
  • 3 Day(s) or Less
  • 4 Day(s) or Less
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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

    Ultrasert UD2 / UD4 (Brass Cadmium-Free)

      Techlock (SL)

      • On Sale Till 31/03/2025

      Dodge Bit Insert Flange Type  (Brass Cadmium-Free)

        Nitronic 60 Insert

          Recoil-Free (mm) SUS304

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

              Insert SUS316

              • On Sale Till 31/03/2025

              Thread Inserts/Tangless

                E-Certs

                  Stainless Steel/Insert Nut Threaded Type / IRU

                    Recoil-Free (Specified mm) SUS304

                    • On Sale Till 31/03/2025

                    Tangless Insert Metric Coarse

                      Sprue

                        Lock Recoil (mm) SUS304

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

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

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

                                Coil Thread R

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

                                    Thread Insert (Box)

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

                                        Tangless insert metric coarselocking

                                          Brass Ultrasert IV/HUD IV

                                            E-Sert Fine

                                              Dodge Bit Insert Standard SD (Brass Cadmium-Less)

                                                Recoil Packet (Milli)

                                                  Recoil Free (UNC) SUS304

                                                    Insert, Inconel X-750

                                                      Recoil Packet (METRIC)

                                                        Sparrow (Type SP)

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

                                                            Brass Bit Insert (Flange Type) / HFB

                                                            • On Sale Till 31/03/2025

                                                            Thread Insert (Box)

                                                              Sprue (Fine, P=1.25)

                                                                Recoil-Free (UNF) SUS304

                                                                  Tangless insert metric coarsephosphor bronze

                                                                    Tangless insert metric coarsetaping packaging

                                                                      Stainless Steel Sprue (Other, Fine)

                                                                        Lock E-Sert

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

                                                                            Tangless Insert Unified Coarse

                                                                              Tangless Insert Unified Fine

                                                                                Sprue (Unified) (UNC)

                                                                                Brand

                                                                                TOKAI METAL INDUSTRY

                                                                                MISUMI

                                                                                TOKAI METAL INDUSTRY

                                                                                JAPAN DRIVEIT

                                                                                TOKAI METAL INDUSTRY

                                                                                RECOIL

                                                                                RECOIL

                                                                                HIROSUGI-KEIKI

                                                                                RECOIL

                                                                                MISUMI

                                                                                TSUGAMI

                                                                                HIROSUGI-KEIKI

                                                                                RECOIL

                                                                                ACCURATE

                                                                                NIPPON SPREW

                                                                                RECOIL

                                                                                HIROSUGI-KEIKI

                                                                                HIROSUGI-KEIKI

                                                                                HIROSUGI-KEIKI

                                                                                ACCURATE

                                                                                HIROSUGI-KEIKI

                                                                                MISUMI

                                                                                TOKAI METAL INDUSTRY

                                                                                ACCURATE

                                                                                HIROSUGI-KEIKI

                                                                                TSUGAMI

                                                                                TOKAI METAL INDUSTRY

                                                                                RECOIL

                                                                                RECOIL

                                                                                RECOIL

                                                                                RECOIL

                                                                                JAPAN DRIVEIT

                                                                                HIROSUGI-KEIKI

                                                                                HIROSUGI-KEIKI

                                                                                MISUMI

                                                                                NIPPON SPREW

                                                                                RECOIL

                                                                                ACCURATE

                                                                                ACCURATE

                                                                                SUNCO

                                                                                SUNCO

                                                                                HIROSUGI-KEIKI

                                                                                ACCURATE

                                                                                ACCURATE

                                                                                NIPPON SPREW

                                                                                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)

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

                                                                                Nitronic 60 Insert

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

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

                                                                                Insert SUS316

                                                                                Thread Inserts/Tangless

                                                                                E-Certs

                                                                                Stainless Steel/Insert Nut Threaded Type / IRU

                                                                                Recoil-Free (Specified mm) SUS304

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

                                                                                Sprue【1-100 Pieces Per Package】

                                                                                Lock Recoil (mm) SUS304

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

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

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

                                                                                Coil Thread R

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

                                                                                Thread Insert (Box)【100 Pieces Per Package】

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

                                                                                Tangless insert metric coarselocking

                                                                                Brass Ultrasert IV/HUD IV

                                                                                E-Sert Fine

                                                                                Dodge Bit Insert Standard SD (Brass Cadmium-Less)

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

                                                                                Recoil Free (UNC) SUS304

                                                                                Insert, Inconel X-750

                                                                                Recoil Packet (METRIC)【10 Pieces Per Package】

                                                                                Sparrow (Type SP)

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

                                                                                Brass Bit Insert (Flange Type) / HFB

                                                                                Thread Insert (Box)【100 Pieces Per Package】

                                                                                Sprue (Fine, P=1.25)

                                                                                Recoil-Free (UNF) SUS304

                                                                                Tangless insert metric coarsephosphor bronze

                                                                                Tangless insert metric coarsetaping packaging

                                                                                Stainless Steel Sprue (Other, Fine)

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

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

                                                                                Tangless Insert Unified Coarse

                                                                                Tangless Insert Unified Fine

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

                                                                                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 Same day 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 4 Day(s) or more 11 Day(s) or more 4 Day(s) or more Same day 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 8 Day(s) or more 4 Day(s) or more 4 Day(s) or more 4 Day(s) or more 7 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 7 Day(s) or more 4 Day(s) or more 11 Day(s) or more 11 Day(s) or more Same day or more 4 Day(s) or more 7 Day(s) or more 8 Day(s) or more 4 Day(s) or more 4 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
                                                                                Screw Dia. M (after insertion)(mm)2 ~ 63 ~ 162.6 ~ 103 ~ 103 ~ 83 ~ 122 ~ 422.6 ~ 83 ~ 162.5 ~ 102 ~ 242 ~ 88 ~ 242 ~ 242 ~ 303 ~ 202 ~ 82.6 ~ 82.6 ~ 83 ~ 62 ~ 52.5 ~ 81.7 ~ 62.5 ~ 123 ~ 1010 ~ 1653 ~ 16-3 ~ 12242 ~ 83 ~ 43 ~ 810 ~ 20-3 ~ 62.5 ~ 5243 ~ 162 ~ 5---
                                                                                Environmentally friendly---------------------------------------------
                                                                                TypeStandardStandardStandardPress FitStandardStandardStandardSelf-TappingStandardTanglessStandardSelf-TappingStandardTanglessStandardStandardSelf-TappingSelf-TappingSelf-TappingStandardPress FitTanglessStandardTanglessPress FitStandardStandardStandardStandardStandardStandardPress FitSelf-TappingPress FitStandardStandardStandardTanglessTanglessStandardStandardPress FitTanglessTanglessStandard
                                                                                Characteristics/Applications---------------------------------------------
                                                                                MaterialBrassStainless Steel (SUS303/304)BrassBrassBrassNitrox 60Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS316)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304) / Phosphor BronzeStainless Steel (SUS303/304)BrassBrassStainless Steel (SUS303/304)Stainless Steel (SUS303/304)BrassStainless Steel (SUS303/304)BrassStainless Steel (SUS303/304)BrassStainless Steel (SUS303/304)BrassStainless Steel (SUS303/304)Stainless Steel (SUS303/304)Inconel X-750Stainless Steel (SUS303/304)BrassAluminumBrassStainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless 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)
                                                                                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 (Fine) 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 (Fine) ThreadMetric (Coarse) ThreadMetric (Coarse) Thread / Metric (Fine) ThreadUnified (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Fine) ThreadUnified (Fine) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Fine) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadUnified (Coarse) ThreadUnified (Fine) ThreadUnified (Coarse) Thread
                                                                                Length L (after insertion) (D = Thread Dia. M)1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D1D
                                                                                ApplicationResin GeneralLight MetalResin General-Resin GeneralLight MetalLight MetalCast IronLight MetalLight MetalLight Metal / Cast Iron / Resin GeneralCast IronLight MetalLight Metal / Cast Iron / Resin GeneralLight MetalLight MetalLight MetalLight MetalCast IronLight Metal / Cast Iron / Resin GeneralLight MetalLight MetalResin GeneralLight Metal / Cast Iron / Resin GeneralLight MetalLight Metal / Cast Iron / Resin GeneralResin GeneralLight MetalLight MetalLight Metal / Cast Iron-Resin GeneralLight MetalLight MetalLight MetalLight MetalLight MetalLight Metal / Cast Iron / Resin GeneralLight Metal / Cast Iron / Resin General--Light MetalLight Metal / Cast Iron / Resin GeneralLight Metal / Cast Iron / Resin GeneralLight Metal
                                                                                NotchNot ProvidedProvidedNot ProvidedNot ProvidedNot ProvidedProvidedProvidedNot ProvidedProvidedNot ProvidedProvidedNot ProvidedProvidedNot ProvidedProvidedProvidedNot ProvidedNot ProvidedNot Provided-Not ProvidedNot ProvidedNot Provided-Not ProvidedProvidedNot ProvidedProvidedProvidedProvided-Not ProvidedNot ProvidedNot ProvidedProvidedProvidedProvided--ProvidedProvidedNot Provided--Provided
                                                                                Thread Dia. (After inserted), Unified(inch)----------------------------1/2-13 ~ #10-24-------1/4-28 ~ #10-32-----1/4 ~ 101/4 ~ 101/2-13 ~ #10-24
                                                                                ShapeStandard-StandardStandardStandard--Slotted---Standard----StandardSlottedSlotted-Standard-Standard-Standard-Standard----StandardStandardStandard-----Standard-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.) / 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.) / 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.)-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.-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.)Box, Pkg.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.--Low Quantity (Available beginning with 1 pc.) / Box, Pkg.
                                                                                Cleaning Method---------------------------------------------

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