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Insert(Length L (after insertion) (D = Thread Dia. M):1.5D)

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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  • 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)
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

                          • On Sale Till 31/03/2025

                          Heat-Lok (HL Type)

                            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)

                                        B-LOK N42 Type

                                          Tangless insert metric coarselocking

                                            Brass Ultrasert IV/HUD IV

                                              Brass Ultrasert IV (Flanged) / HFU

                                                E-Sert Fine

                                                  Dodge Bit Insert Standard SD (Brass Cadmium-Less)

                                                    Recoil Packet (Milli)

                                                      Recoil Free (UNC) SUS304

                                                        Insert, Inconel X-750

                                                          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)

                                                                  Ultrasert 4 FUIV, Flange Type (Brass, Cadmium-Free)

                                                                    Dodge Insert Flange Type (Brass Cadmium-Less)

                                                                      Recoil Packet (UNC)

                                                                        Recoil-Free (UNF) SUS304

                                                                          Flat Head Sonic Lock (Type SHK)

                                                                            Tangless insert metric coarsephosphor bronze

                                                                              Tangless insert metric coarsetaping packaging

                                                                              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

                                                                              JAPAN DRIVEIT

                                                                              HIROSUGI-KEIKI

                                                                              HIROSUGI-KEIKI

                                                                              ACCURATE

                                                                              HIROSUGI-KEIKI

                                                                              MISUMI

                                                                              TOKAI METAL INDUSTRY

                                                                              JAPAN DRIVEIT

                                                                              ACCURATE

                                                                              HIROSUGI-KEIKI

                                                                              HIROSUGI-KEIKI

                                                                              TSUGAMI

                                                                              TOKAI METAL INDUSTRY

                                                                              RECOIL

                                                                              RECOIL

                                                                              RECOIL

                                                                              JAPAN DRIVEIT

                                                                              HIROSUGI-KEIKI

                                                                              HIROSUGI-KEIKI

                                                                              MISUMI

                                                                              NIPPON SPREW

                                                                              TOKAI METAL INDUSTRY

                                                                              TOKAI METAL INDUSTRY

                                                                              RECOIL

                                                                              RECOIL

                                                                              JAPAN DRIVEIT

                                                                              ACCURATE

                                                                              ACCURATE

                                                                              Product Series

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

                                                                              Thread Inserts

                                                                              Ultrasert UD2 / UD4 (Brass Cadmium-Free)【1-600 Pieces Per Package】

                                                                              Techlock (SL)【1-5,000 Pieces Per Package】

                                                                              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

                                                                              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

                                                                              Heat-Lok (HL Type)【1,000 Pieces Per Package】

                                                                              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)【1-10,000 Pieces Per Package】

                                                                              B-LOK N42 Type

                                                                              Tangless insert metric coarselocking

                                                                              Brass Ultrasert IV/HUD IV

                                                                              Brass Ultrasert IV (Flanged) / HFU

                                                                              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

                                                                              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)【1-100 Pieces Per Package】

                                                                              Ultrasert 4 FUIV, Flange Type (Brass, Cadmium-Free)【1,000 Pieces Per Package】

                                                                              Dodge Insert Flange Type (Brass Cadmium-Less)

                                                                              Recoil Packet (UNC)【10 Pieces Per Package】

                                                                              Recoil-Free (UNF) SUS304

                                                                              Flat Head Sonic Lock (Type SHK)

                                                                              Tangless insert metric coarsephosphor bronze

                                                                              Tangless insert metric coarsetaping packaging

                                                                              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 Same day or more Same day or more 11 Day(s) or more 7 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 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 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 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 11 Day(s) or more 4 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 4 Day(s) or more 8 Day(s) or more 8 Day(s) or more
                                                                              Screw Dia. M (after insertion)(mm)2 ~ 83 ~ 163 ~ 82 ~ 82 ~ 63 ~ 122 ~ 422.6 ~ 83 ~ 162.5 ~ 102 ~ 242 ~ 88 ~ 202 ~ 202 ~ 303 ~ 202 ~ 832.6 ~ 82.6 ~ 83 ~ 61.7 ~ 52.5 ~ 81.4 ~ 632.5 ~ 123 ~ 88102.6 ~ 52 ~ 20-3 ~ 125 ~ 62 ~ 82 ~ 53 ~ 810 ~ 2084 ~ 6--83 ~ 62.5 ~ 5
                                                                              Environmentally friendly---------------------------------------------
                                                                              TypeStandardStandardStandardPress FitStandardStandardStandardSelf-TappingStandardTanglessStandardSelf-TappingStandardTanglessStandardStandardSelf-TappingPress FitSelf-TappingSelf-TappingStandardPress FitTanglessStandardPress FitTanglessPress FitPress FitStandardStandardStandardStandardStandardPress FitSelf-TappingPress FitStandardStandardStandardStandardStandardStandardPress FitTanglessTangless
                                                                              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)BrassBrassBrassStainless Steel (SUS303/304)Stainless Steel (SUS303/304)BrassStainless Steel (SUS303/304)BrassBrassStainless Steel (SUS303/304)BrassBrassStainless Steel (SUS303/304)BrassStainless Steel (SUS303/304)Stainless Steel (SUS303/304)Inconel X-750BrassAluminumBrassStainless Steel (SUS303/304)Stainless Steel (SUS303/304)BrassBrassStainless Steel (SUS303/304)Stainless Steel (SUS303/304)BrassPhosphor BronzeStainless 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) 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) ThreadMetric (Coarse) Thread / Metric (Fine) ThreadUnified (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Fine) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadUnified (Coarse) ThreadUnified (Fine) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) Thread
                                                                              Length L (after insertion) (D = Thread Dia. M)1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D1.5D
                                                                              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 MetalResin GeneralLight MetalCast IronLight Metal / Cast Iron / Resin GeneralLight MetalLight MetalResin General-Light Metal / Cast Iron / Resin GeneralLight MetalLight MetalLight Metal / Cast Iron / Resin GeneralResin GeneralLight MetalLight MetalLight Metal / Cast IronResin GeneralLight MetalLight MetalLight MetalLight MetalResin GeneralResin GeneralLight MetalLight Metal-Light Metal / Cast Iron / Resin GeneralLight Metal / Cast Iron / Resin General
                                                                              NotchNot ProvidedProvidedNot ProvidedNot ProvidedNot ProvidedProvidedProvidedNot ProvidedProvidedNot ProvidedProvidedNot ProvidedProvidedNot ProvidedProvidedProvidedNot ProvidedNot ProvidedNot ProvidedNot Provided-Not ProvidedNot ProvidedNot ProvidedNot Provided-Not ProvidedNot ProvidedProvidedNot ProvidedProvidedProvidedProvidedNot ProvidedNot ProvidedNot ProvidedProvidedProvidedNot ProvidedNot ProvidedProvidedProvidedNot Provided--
                                                                              Thread Dia. (After inserted), Unified(inch)-------------------------------1/2-13 ~ #10-24--------1/4-20 ~ 7/16-141"-12 ~ #10-32---
                                                                              ShapeStandard-StandardStandardStandard--Slotted---Standard----StandardStandardSlottedSlotted-Standard-StandardStandard-StandardStandard-Standard---StandardStandardStandard--StandardStandard--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.) / 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.)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.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.) / 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.)--
                                                                              Cleaning Method---------------------------------------------

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