Insert(Sales Unit:Box, Pkg.)

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

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Brand
Product Series
CAD
Days to Ship
Type
Application
Material
Screw Type
Screw Dia. M (after insertion)(mm)
Thread Dia. (After inserted), Unified(inch)
Length L (after insertion) (D = Thread Dia. M)
Notch
Shape
Sales Unit

    Ultrasert UD2 / UD4 (Brass Cadmium-Free)

      Dodge Bit Insert, Standard, SB (Brass, Cadmium-Free)

        Dodge Bit Insert Flange Type  (Brass Cadmium-Free)

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

            Stainless Steel/Insert Nut Threaded Type (Slotted) / IRU-S

              Brass Bit Insert (Flanged) / HFB

                Dodge Bit Insert Standard SD (Brass Cadmium-Less)

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

                    Recoil-Free (mm) SUS304

                      Thread Insert (Box)

                        Sparrow (Type SP)

                          Male Screw Repair Coil Thread -R

                            Stainless Steel/Insert Nut Threaded Type / IRU

                              Techlock (SL)

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

                                  Dodge Bit Inserts (Standard) SB (Z) Type (Double Side Finishing) Brass (Cadmium-Free)

                                    Recoil Packet (mm)

                                      Brass/Insert Nuts, Screw-In Type / IRB-C

                                        Sprue

                                          Screwsert (Type SCT)

                                            Stainless Steel E-Sert Fine (Hemlock-Made)

                                              Screw Reinforcement Tangless Insert

                                                Brass Ultrasert II/HUD II

                                                  Sprue (Unified) (UNC)

                                                    Sprue (Unify) (UNF)

                                                      C Lock (CL Type)

                                                        Sonic Lock (SL-4)

                                                          Stainless Steel Recoil

                                                            Lock E-Sert

                                                              Lock Type Sprew (Fine)

                                                                Lock Recoil

                                                                  Aluminum Insert Nut Threaded Type / IRL-K

                                                                    Aluminum Insert Nut Threaded Type (Locking Application) / IRL-KW

                                                                      Brass/Insert Nut, Screw-In Type (With Slotting) / IRB-SC

                                                                        Brass/Insert Nut, Screw-In Type (Loosening Prevention Coating) / IRB-CW

                                                                          Brass Bit Insert (Standard, One Sided) / HSB

                                                                            Brass Bit Insert (Standard, Both Faces) / HSB-Z

                                                                              Brass Ultrasert IV (Flanged) / HFU

                                                                                Thread Insert (Box)

                                                                                  Self Floating Fastener

                                                                                    Sel Locking Fastener SLN (Non-Lock)

                                                                                      Sprue (Fine, P=1.25)

                                                                                        Lock Sprue

                                                                                          E-Certs

                                                                                            E-Sert Fine

                                                                                            Brand

                                                                                            TOKAI METAL INDUSTRY

                                                                                            TOKAI METAL INDUSTRY

                                                                                            TOKAI METAL INDUSTRY

                                                                                            HIROSUGI-KEIKI

                                                                                            HIROSUGI-KEIKI

                                                                                            HIROSUGI-KEIKI

                                                                                            TOKAI METAL INDUSTRY

                                                                                            HIROSUGI-KEIKI

                                                                                            RECOIL

                                                                                            MISUMI

                                                                                            JAPAN DRIVEIT

                                                                                            KS SANGYO

                                                                                            HIROSUGI-KEIKI

                                                                                            JAPAN DRIVEIT

                                                                                            HIROSUGI-KEIKI

                                                                                            TOKAI METAL INDUSTRY

                                                                                            RECOIL

                                                                                            HIROSUGI-KEIKI

                                                                                            NIPPON SPREW

                                                                                            JAPAN DRIVEIT

                                                                                            SUNCO

                                                                                            KS SANGYO

                                                                                            HIROSUGI-KEIKI

                                                                                            NIPPON SPREW

                                                                                            NIPPON SPREW

                                                                                            BOHSEI

                                                                                            JAPAN DRIVEIT

                                                                                            SUNCO

                                                                                            SUNCO

                                                                                            SUNCO

                                                                                            SUNCO

                                                                                            HIROSUGI-KEIKI

                                                                                            HIROSUGI-KEIKI

                                                                                            HIROSUGI-KEIKI

                                                                                            HIROSUGI-KEIKI

                                                                                            HIROSUGI-KEIKI

                                                                                            HIROSUGI-KEIKI

                                                                                            HIROSUGI-KEIKI

                                                                                            MISUMI

                                                                                            SEL JAPAN

                                                                                            SEL JAPAN

                                                                                            NIPPON SPREW

                                                                                            NIPPON SPREW

                                                                                            TSUGAMI

                                                                                            TSUGAMI

                                                                                            Product Series

                                                                                            Ultrasert UD2 / UD4 (Brass Cadmium-Free)【1-2,000 Pieces Per Package】

                                                                                            Dodge Bit Insert, Standard, SB (Brass, Cadmium-Free)【1,000-10,000 Pieces Per Package】

                                                                                            Dodge Bit Insert Flange Type (Brass Cadmium-Free)【3,000-5,000 Pieces Per Package】

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

                                                                                            Stainless Steel/Insert Nut Threaded Type (Slotted) / IRU-S

                                                                                            Brass Bit Insert (Flanged) / HFB

                                                                                            Dodge Bit Insert Standard SD (Brass Cadmium-Less)【500-2,000 Pieces Per Package】

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

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

                                                                                            Thread Insert (Box)【100 Pieces Per Package】

                                                                                            Sparrow (Type SP)【5,000 Pieces Per Package】

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

                                                                                            Stainless Steel/Insert Nut Threaded Type / IRU

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

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

                                                                                            Dodge Bit Inserts (Standard) SB (Z) Type (Double Side Finishing) Brass (Cadmium-Free)【400-15,000 Pieces Per Package】

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

                                                                                            Brass/Insert Nuts, Screw-In Type / IRB-C

                                                                                            Sprue【1-100 Pieces Per Package】

                                                                                            Screwsert (Type SCT)【200 Pieces Per Package】

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

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

                                                                                            Brass Ultrasert II/HUD II

                                                                                            Sprue (Unified) (UNC)【10-100 Pieces Per Package】

                                                                                            Sprue (Unify) (UNF)【10-100 Pieces Per Package】

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

                                                                                            Sonic Lock (SL-4)【2,000 Pieces Per Package】

                                                                                            Stainless Steel Recoil【25-100 Pieces Per Package】

                                                                                            Lock E-Sert【100 Pieces Per Package】

                                                                                            Lock Type Sprew (Fine)【10 Pieces Per Package】

                                                                                            Lock Recoil【20-500 Pieces Per Package】

                                                                                            Aluminum Insert Nut Threaded Type / IRL-K

                                                                                            Aluminum Insert Nut Threaded Type (Locking Application) / IRL-KW

                                                                                            Brass/Insert Nut, Screw-In Type (With Slotting) / IRB-SC

                                                                                            Brass/Insert Nut, Screw-In Type (Loosening Prevention Coating) / IRB-CW

                                                                                            Brass Bit Insert (Standard, One Sided) / HSB

                                                                                            Brass Bit Insert (Standard, Both Faces) / HSB-Z

                                                                                            Brass Ultrasert IV (Flanged) / HFU

                                                                                            Thread Insert (Box)【100 Pieces Per Package】

                                                                                            Self Floating Fastener【1,000 Pieces Per Package】

                                                                                            Sel Locking Fastener SLN (Non-Lock)【1,000 Pieces Per Package】

                                                                                            Sprue (Fine, P=1.25)【1-100 Pieces Per Package】

                                                                                            Lock Sprue【1-10 Pieces Per Package】

                                                                                            E-Certs【100 Pieces Per Package】

                                                                                            E-Sert Fine

                                                                                            CAD
                                                                                            • 2D / 3D
                                                                                            • 2D / 3D
                                                                                            Days to Ship 4 Day(s) or more 10 Day(s) or more 4 Day(s) or more 8 Day(s) or more 8 Day(s) or more 3 Day(s) or more 10 Day(s) or more 8 Day(s) or more 33 Day(s) or more Same day or more Quote 4 Day(s) or more 8 Day(s) or more 13 Day(s) or more 8 Day(s) or more 4 Day(s) or more 3 Day(s) or more 8 Day(s) or more 3 Day(s) or more 13 Day(s) or more 4 Day(s) or more 4 Day(s) or more 8 Day(s) or more 4 Day(s) or more 4 Day(s) or more 3 Day(s) or more 14 Day(s) or more 4 Day(s) or more 14 Day(s) or more 14 Day(s) or more 14 Day(s) or more 8 Day(s) or more 11 Day(s) or more 8 Day(s) or more 11 Day(s) or more 3 Day(s) or more 8 Day(s) or more 10 Day(s) or more 3 Day(s) or more 10 Day(s) or more 5 Day(s) or more 4 Day(s) or more 4 Day(s) or more 10 Day(s) or more 3 Day(s) or more
                                                                                            TypeStandardStandardStandardSelf-TappingSelf-TappingPress FitStandardSelf-TappingStandardStandardPress FitStandardSelf-TappingPress FitSelf-TappingStandardStandardSelf-TappingStandardSelf-TappingStandardTanglessPress FitStandardStandardPress FitPress FitStandardStandardStandardStandardSelf-TappingSelf-TappingSelf-TappingSelf-TappingPress FitPress FitPress FitTanglessSwagedSwagedStandardStandardStandardStandard
                                                                                            ApplicationResin GeneralResin GeneralResin GeneralLight MetalCast IronLight MetalResin GeneralCast IronLight MetalLight MetalResin GeneralLight Metal / Cast Iron / Resin GeneralCast Iron-Cast IronResin GeneralLight MetalLight MetalLight MetalResin General-Light Metal / Cast Iron / Resin GeneralLight MetalLight MetalLight MetalResin General-----Light MetalLight MetalLight MetalLight MetalLight MetalLight MetalLight MetalLight MetalLight MetalLight MetalLight MetalLight MetalLight Metal / Cast Iron / Resin GeneralLight Metal / Cast Iron / Resin General
                                                                                            MaterialBrassBrassBrassBrassStainless Steel (SUS303/304)BrassBrassStainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)BrassStainless 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)BrassStainless Steel (SUS303/304)Stainless Steel (SUS303/304)BrassBrassStainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)AluminumAluminumBrassBrassBrassBrassBrassStainless Steel (SUS303/304)Steel / Stainless Steel (SUS303/304)Stainless 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 (Coarse) ThreadMetric (Coarse) Thread / Metric (Fine) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Fine) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadUnified (Coarse) ThreadUnified (Fine) 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 (Fine) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Fine) Thread
                                                                                            Screw Dia. M (after insertion)(mm)2.6 ~ 101.7 ~ 42 ~ 42.6 ~ 82.6 ~ 82 ~ 53 ~ 52.6 ~ 827 ~ 423 ~ 83.53 ~ 62 ~ 83.52.6 ~ 81.4 ~ 82 ~ 202 ~ 82.6 ~ 18106 ~ 392 ~ 122.6 ~ 8--2 ~ 632 ~ 242.5 ~ 3610 ~ 222.5 ~ 242 ~ 82.6 ~ 82.6 ~ 82.6 ~ 81.4 ~ 51.4 ~ 53 ~ 82.5 ~ 83 ~ 43 ~ 418 ~ 224 ~ 82.616
                                                                                            Thread Dia. (After inserted), Unified(inch)-----------------------1/2-13 ~ #12-241/2-20 ~ #10-32--------------------
                                                                                            Length L (after insertion) (D = Thread Dia. M)1D / 1.5D / 2D1D / 1.5D / 2D / 2.5D / 3D1D / 2D1D / 1.5D / 2D / 2.5D / 3D / 0.8D / 3.5D1D / 1.5D / 2D / 2.5D / 3D / 0.8D / 3.5D1D / 1.5D / 2D / 2.5D / 3D2D / 3D1D / 1.5D / 2D / 2.5D / 3D / 0.8D / 3.5D1D / 1.5D / 2D1D / 1.5D / 2D2D1D / 1.5D / 2D1D / 1.5D / 2D / 2.5D / 3D / 0.7D / 0.8D / 3.5D1.5D1D / 1.5D / 2D / 2.5D / 3D / 0.8D / 3.5D1D / 1.5D / 2D / 2.5D / 3D / 0.7D1D / 1.5D / 2D1D / 1.5D / 2D / 2.5D / 3D / 0.7D / 0.8D / 3.5D1.5D / 2D / 2.5D2D1D / 1.5D / 2D / 2.5D / 3D1D / 1.5D / 2D1.5D / 2D / 2.5D1D / 1.5D / 2D / 2.5D / 3D1D / 1.5D / 2D / 2.5D / 3D-1D / 2D / 2.5D1D / 1.5D / 2D / 2.5D / 3D1D / 1.5D / 2D1D / 1.5D / 2D1D / 1.5D / 2D / 2.5D / 3D1D / 1.5D / 2D / 2.5D / 3D / 0.7D / 0.8D / 3.5D1D / 1.5D / 2D / 2.5D / 3D / 0.8D / 3.5D1D / 1.5D / 2D / 2.5D / 3D / 0.8D / 3.5D1D / 1.5D / 2D / 2.5D / 3D / 0.8D / 3.5D1D / 1.5D / 2D / 2.5D / 3D / 0.7D / 0.8D / 3.5D / 4D1D / 1.5D / 2D / 2.5D / 3D / 0.7D / 0.8D / 3.5D / 4D1.5D / 2D / 2.5D1D / 1.5D / 2D--1D / 1.5D / 2D1.5D / 3D2.5D1D
                                                                                            NotchNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedProvidedProvidedNot ProvidedProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedProvidedNot ProvidedProvidedNot ProvidedProvidedProvidedNot ProvidedProvidedProvided-Not ProvidedProvidedProvidedProvidedProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedProvidedProvidedProvidedProvided
                                                                                            ShapeStandardStandardStandardSlottedSlottedStandardStandardSlotted--StandardStandardStandardStandardStandardStandard-Standard-StandardStandardStandardStandard--StandardStandardStandard---StandardStandardSlottedStandardStandardStandardStandard-------
                                                                                            Sales UnitBox, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.

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