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Insert

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
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)

    Ultrasert UD2 / UD4 (Brass Cadmium-Free)

      Techlock (SL)

      • On Sale Till 31/03/2025

      Dodge Bit Insert Flange Type  (Brass Cadmium-Free)

        Dodge Bit Insert Standard SD (Brass Cadmium-Less)

        • On Sale Till 31/03/2025

        Heat-Lok (HL Type)

          Brass Bit Insert (Flange Type) / HFB

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

              Stainless Steel/Insert Nut Threaded Type / IRU

                C-Lock (HCL Type)

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

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

                      TEC Sonic (TEC Type)

                        Dodge Insert Flange Type (Brass Cadmium-Less)

                          C Lock (CL Type)

                            Stainless Steel E-Sert Fine (Hemlock-Made)

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

                                Sparrow (Type SP)

                                  Brass Sonic Lock (SL Type)

                                    Brass Dutch Insert (Standard) / HSD

                                      Brass Dutch Insert (Flanged) / HFD

                                        Brass Ultrasert IV (Flanged) / HFU

                                          Mini TEC (MT Type)

                                            Stainless Steel Tangless Insert

                                              Brass Flat Head Sonic Lock (SHK Type)

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

                                                  Brass Ultrasert II/HUD II

                                                    Brass Ensat Thread Plastic Deformation Type, Model 305

                                                      Flat Head Sonic Lock (Type SHK)

                                                        B-LOK N42 Type

                                                          Fin-Lok (FL Type)

                                                            Stainless Steel E-Sert (Unify) (UNF)

                                                              Brass Ultrasert IV/HUD IV

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

                                                                  C TEC (CT Type)

                                                                  • On Sale Till 31/03/2025

                                                                  Ensat Extra Coarse External Thread Type, Model 309

                                                                    Sparrow Insert With Flat Head (HSR Type)

                                                                      Press-Lok (PLK Type)

                                                                        Screwsert (Type SCT)

                                                                          FLO-TECH (FTC Type)

                                                                            Stainless Steel Sprue (Other, Fine)

                                                                              Stainless Steel Sprue (Unify) (UNC)

                                                                                Stainless Steel Sprue (Unify) (UNF)

                                                                                  Stainless Steel Recoil

                                                                                    Stainless Steel E-Sert Hemlock-Made

                                                                                    Brand

                                                                                    TOKAI METAL INDUSTRY

                                                                                    TOKAI METAL INDUSTRY

                                                                                    JAPAN DRIVEIT

                                                                                    TOKAI METAL INDUSTRY

                                                                                    TOKAI METAL INDUSTRY

                                                                                    JAPAN DRIVEIT

                                                                                    HIROSUGI-KEIKI

                                                                                    TOKAI METAL INDUSTRY

                                                                                    HIROSUGI-KEIKI

                                                                                    BOHSEI

                                                                                    HIROSUGI-KEIKI

                                                                                    HIROSUGI-KEIKI

                                                                                    JAPAN DRIVEIT

                                                                                    TOKAI METAL INDUSTRY

                                                                                    BOHSEI

                                                                                    SUNCO

                                                                                    HIROSUGI-KEIKI

                                                                                    JAPAN DRIVEIT

                                                                                    SUNCO

                                                                                    HIROSUGI-KEIKI

                                                                                    HIROSUGI-KEIKI

                                                                                    HIROSUGI-KEIKI

                                                                                    JAPAN DRIVEIT

                                                                                    SUNCO

                                                                                    SUNCO

                                                                                    HIROSUGI-KEIKI

                                                                                    HIROSUGI-KEIKI

                                                                                    KKV

                                                                                    JAPAN DRIVEIT

                                                                                    JAPAN DRIVEIT

                                                                                    JAPAN DRIVEIT

                                                                                    SUNCO

                                                                                    HIROSUGI-KEIKI

                                                                                    TOKAI METAL INDUSTRY

                                                                                    BOHSEI

                                                                                    KKV

                                                                                    JAPAN DRIVEIT

                                                                                    JAPAN DRIVEIT

                                                                                    JAPAN DRIVEIT

                                                                                    JAPAN DRIVEIT

                                                                                    SUNCO

                                                                                    SUNCO

                                                                                    SUNCO

                                                                                    SUNCO

                                                                                    SUNCO

                                                                                    Product Series

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

                                                                                    Ultrasert UD2 / UD4 (Brass Cadmium-Free)【1-5,000 Pieces Per Package】

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

                                                                                    Dodge Bit Insert Flange Type (Brass Cadmium-Free)【1-5,000 Pieces Per Package】

                                                                                    Dodge Bit Insert Standard SD (Brass Cadmium-Less)【1-2,000 Pieces Per Package】

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

                                                                                    Brass Bit Insert (Flange Type) / HFB

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

                                                                                    Stainless Steel/Insert Nut Threaded Type / IRU

                                                                                    C-Lock (HCL Type)【10-100 Pieces Per Package】

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

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

                                                                                    TEC Sonic (TEC Type)【1-500 Pieces Per Package】

                                                                                    Dodge Insert Flange Type (Brass Cadmium-Less)【1-600 Pieces Per Package】

                                                                                    C Lock (CL Type)【100 Pieces Per Package】

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

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

                                                                                    Sparrow (Type SP)

                                                                                    Brass Sonic Lock (SL Type)

                                                                                    Brass Dutch Insert (Standard) / HSD

                                                                                    Brass Dutch Insert (Flanged) / HFD

                                                                                    Brass Ultrasert IV (Flanged) / HFU

                                                                                    Mini TEC (MT Type)【5,000 Pieces Per Package】

                                                                                    Stainless Steel Tangless Insert

                                                                                    Brass Flat Head Sonic Lock (SHK Type)

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

                                                                                    Brass Ultrasert II/HUD II

                                                                                    Brass Ensat Thread Plastic Deformation Type, Model 305

                                                                                    Flat Head Sonic Lock (Type SHK)

                                                                                    B-LOK N42 Type

                                                                                    Fin-Lok (FL Type)

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

                                                                                    Brass Ultrasert IV/HUD IV

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

                                                                                    C TEC (CT Type)【100 Pieces Per Package】

                                                                                    Ensat Extra Coarse External Thread Type, Model 309

                                                                                    Sparrow Insert With Flat Head (HSR Type)

                                                                                    Press-Lok (PLK Type)

                                                                                    Screwsert (Type SCT)

                                                                                    FLO-TECH (FTC Type)【1-1,000 Pieces Per Package】

                                                                                    Stainless Steel Sprue (Other, Fine)【1-100 Pieces Per Package】

                                                                                    Stainless Steel Sprue (Unify) (UNC)【100 Pieces Per Package】

                                                                                    Stainless Steel Sprue (Unify) (UNF)

                                                                                    Stainless Steel Recoil【1-100 Pieces Per Package】

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

                                                                                    Days to Ship Same day or more 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 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 11 Day(s) 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 17 Day(s) or more 4 Day(s) or more 7 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 11 Day(s) or more 4 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 7 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
                                                                                    Screw Dia. M (after insertion)(mm)1.6 ~ 82 ~ 102 ~ 102 ~ 82.6 ~ 83 ~ 62 ~ 51.4 ~ 62 ~ 83 ~ 62.6 ~ 81.4 ~ 52 ~ 82.6 ~ 82 ~ 66 ~ 391.4 ~ 52 ~ 62.5 ~ 42.6 ~ 52.6 ~ 53 ~ 81.62 ~ 2032 ~ 82.6 ~ 83 ~ 62 ~ 83 ~ 63 ~ 4-2 ~ 103 ~ 833 ~ 163 ~ 83 ~ 53 ~ 82.5 ~ 68 ~ 24--2 ~ 162 ~ 36
                                                                                    TypeStandardStandardPress FitStandardStandardPress FitPress FitStandardSelf-TappingPress FitSelf-TappingPress FitPress FitStandardPress FitStandardPress FitPress FitPress FitPress FitPress FitPress FitPress FitTanglessPress FitSelf-TappingPress FitSelf-TappingPress FitPress FitPress FitStandardPress FitStandardPress FitSelf-TappingPress FitPress FitSelf-TappingPress FitStandardStandardStandardStandardStandard
                                                                                    MaterialBrassBrassBrassBrassBrassBrassBrassBrassStainless Steel (SUS303/304)BrassStainless Steel (SUS303/304)BrassBrassBrassBrassStainless Steel (SUS303/304)BrassBrassBrassBrassBrassBrassBrassStainless Steel (SUS303/304)BrassBrassBrassBrassBrassBrassBrassStainless Steel (SUS303/304)BrassBrassBrassStainless Steel (SUS303/304) / BrassBrassBrassBrassBrassStainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)
                                                                                    Screw TypeMetric (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) 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) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Fine) ThreadUnified (Coarse) ThreadUnified (Fine) ThreadMetric (Coarse) ThreadMetric (Coarse) Thread
                                                                                    Length L (after insertion) (D = Thread Dia. M)1D / 1.5D / 2D / 2.5D / 3D1D / 1.5D / 2D1D / 1.5D / 2D / 2.5D1D / 1.5D / 2D / 2.5D / 3D1D / 1.5D / 2D / 2.5D / 3D1.5D / 2D1D / 1.5D / 2D / 2.5D / 3D1D / 1.5D / 2D / 2.5D / 3D / 0.7D1D / 1.5D / 2D / 2.5D / 3D / 0.7D / 0.8D / 3.5D-1D / 1.5D / 2D / 2.5D / 3D / 0.8D / 3.5D1D / 1.5D / 2D / 2.5D / 3D / 0.7D / 0.8D / 3.5D / 4D1.5D / 2D1.5D / 2D / 2.5D-1D / 1.5D / 2D / 2.5D1D / 1.5D / 2D / 2.5D / 3D / 0.7D / 0.8D / 3.5D / 4D1D / 1.5D / 2D-1.5D / 2D / 2.5D / 3D / 3.5D2D / 2.5D1.5D / 2D / 2.5D2D1D / 1.5D / 2D-1D / 1.5D / 2D / 2.5D / 3D / 0.7D / 0.8D / 3.5D1.5D / 2D / 2.5D-1.5D / 2D1.5D / 2D1.5D / 2D1D / 1.5D / 2D / 2.5D1D / 1.5D / 2D1.5D / 2D--1.5D / 2D2D2D / 2.5D2.5D1D / 1.5D / 2D1D / 1.5D1D1D / 1.5D / 2D / 2.5D / 3D / 0.5D1D / 1.5D / 2D / 2.5D / 3D
                                                                                    ApplicationResin GeneralResin General-Resin GeneralResin GeneralResin GeneralLight MetalResin GeneralCast IronResin GeneralCast IronLight Metal-Resin GeneralResin General-Light MetalResin General-Light MetalLight MetalLight Metal---Light MetalLight Metal-----Light MetalResin GeneralResin General---Resin General------
                                                                                    NotchNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot Provided-Not ProvidedNot ProvidedNot ProvidedNot Provided-ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedProvidedNot ProvidedNot ProvidedNot Provided-Not ProvidedNot ProvidedNot ProvidedProvidedNot ProvidedNot Provided--Not ProvidedNot ProvidedNot ProvidedNot ProvidedProvidedProvidedProvidedProvidedProvided
                                                                                    Thread Dia. (After inserted), Unified(inch)-------------------------------1/2-20 ~ #10-32---------#2-563/8-24--
                                                                                    ShapeStandardStandardStandardStandardStandardStandardStandardStandardStandardStandardStandardStandardStandardStandardStandardStandardStandardStandardStandardStandardStandardStandardStandardStandardStandardStandardStandardStandardStandardStandardStandardStandardStandardStandardStandardStandardStandardStandardStandardStandardStandardStandardStandardStandardStandard
                                                                                    Sales UnitLow 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.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.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.Box, Pkg.Low Quantity (Available beginning with 1 pc.) / Box, Pkg.Box, Pkg.Low Quantity (Available beginning with 1 pc.)Low Quantity (Available beginning with 1 pc.)Box, Pkg.Box, Pkg.Box, Pkg.-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.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.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.

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