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Insert(Type:Self-Tapping)

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
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Brand
Product Series
CAD
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

    Self-Tapping Inserts - Slotted

    • On Sale Till 31/03/2025

    Ensat Expanded Slot Type, Model 302

      Ensat 3 Holes Short Type, Model 307

      • On Sale Till 31/03/2025

      Steel Ensat Small Outer Diameter Expanded Slot Type, Model 303

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

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

            Stainless Steel/Insert Nut Threaded Type / IRU

              Ensat, Type 308, 3-Hole / Long Size

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

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

                    Brass Ensat Thread Plastic Deformation Type, Model 305

                      Steel Ensat With Pin Short Type, Model 317

                        Ensat Chip Free Short Type, Model 337

                          Ensat Chip Free Long Type, Model 338

                            Ensat Expanded Slot Type, Model 302, Inch Type

                            • On Sale Till 31/03/2025

                            Ensat Extra Coarse External Thread Type, Model 309

                              Steel Ensat With Pin Long Type, Model 318

                                Steel Ensat Small Outer Diameter, 3 Hole Short Type, Model 347

                                  Steel Ensat Small Outer Diameter, 3 Hole Long Type, Model 348

                                    Screwsert (Type SCT)

                                      Ensat, 3-Hole / Long Size, 308 Type, Stainless Steel

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

                                          Brass Insert Nut (Screw-In Type) IRB-W/-CW

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

                                              Aluminum Insert Nut (Screw-In Type / Coated With Loosening Prevention Agent) IRL-BW/-KW

                                                Brass Insert Nut (Screw-In Type / Slotted) IRB-SW/-SCW

                                                Brand

                                                MISUMI

                                                KKV

                                                KKV

                                                KKV

                                                HIROSUGI-KEIKI

                                                HIROSUGI-KEIKI

                                                HIROSUGI-KEIKI

                                                KKV

                                                HIROSUGI-KEIKI

                                                HIROSUGI-KEIKI

                                                KKV

                                                KKV

                                                KKV

                                                KKV

                                                KKV

                                                KKV

                                                KKV

                                                KKV

                                                KKV

                                                JAPAN DRIVEIT

                                                SUNCO

                                                HIROSUGI-KEIKI

                                                HIROSUGI-KEIKI

                                                HIROSUGI-KEIKI

                                                HIROSUGI-KEIKI

                                                HIROSUGI-KEIKI

                                                Product Series

                                                Self-Tapping Inserts - Slotted

                                                Ensat Expanded Slot Type, Model 302

                                                Ensat 3 Holes Short Type, Model 307

                                                Steel Ensat Small Outer Diameter Expanded Slot Type, Model 303

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

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

                                                Stainless Steel/Insert Nut Threaded Type / IRU

                                                Ensat, Type 308, 3-Hole / Long Size

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

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

                                                Brass Ensat Thread Plastic Deformation Type, Model 305

                                                Steel Ensat With Pin Short Type, Model 317

                                                Ensat Chip Free Short Type, Model 337

                                                Ensat Chip Free Long Type, Model 338

                                                Ensat Expanded Slot Type, Model 302, Inch Type

                                                Ensat Extra Coarse External Thread Type, Model 309

                                                Steel Ensat With Pin Long Type, Model 318

                                                Steel Ensat Small Outer Diameter, 3 Hole Short Type, Model 347

                                                Steel Ensat Small Outer Diameter, 3 Hole Long Type, Model 348

                                                Screwsert (Type SCT)

                                                Ensat, 3-Hole / Long Size, 308 Type, Stainless Steel

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

                                                Brass Insert Nut (Screw-In Type) IRB-W/-CW

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

                                                Aluminum Insert Nut (Screw-In Type / Coated With Loosening Prevention Agent) IRL-BW/-KW

                                                Brass Insert Nut (Screw-In Type / Slotted) IRB-SW/-SCW

                                                CAD
                                                • 2D / 3D
                                                Days to Ship Same day or more Same day or more 4 Day(s) or more Same day or more 11 Day(s) or more 11 Day(s) or more 11 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 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 11 Day(s) or more 11 Day(s) or more 11 Day(s) or more 11 Day(s) or more 11 Day(s) or more
                                                Screw Dia. M (after insertion)(mm)3 ~ 122.5 ~ 303 ~ 163 ~ 102.6 ~ 82.6 ~ 82 ~ 83 ~ 162.6 ~ 82.6 ~ 83 ~ 64 ~ 143 ~ 123 ~ 16-3 ~ 164 ~ 164 ~ 164 ~ 123 ~ 8162 ~ 82.6 ~ 82 ~ 82.6 ~ 82.6 ~ 8
                                                TypeSelf-TappingSelf-TappingSelf-TappingSelf-TappingSelf-TappingSelf-TappingSelf-TappingSelf-TappingSelf-TappingSelf-TappingSelf-TappingSelf-TappingSelf-TappingSelf-TappingSelf-TappingSelf-TappingSelf-TappingSelf-TappingSelf-TappingSelf-TappingSelf-TappingSelf-TappingSelf-TappingSelf-TappingSelf-TappingSelf-Tapping
                                                MaterialSteel / Stainless Steel (SUS303/304)Steel / Stainless Steel (SUS303/304) / Stainless Steel (SUS430F) / BrassSteel / Stainless Steel (SUS303/304) / Stainless Steel (SUS430F)SteelStainless Steel (SUS303/304)Stainless Steel (SUS303/304)Stainless Steel (SUS303/304)Steel / Stainless Steel (SUS303/304) / Stainless Steel (SUS430F)Stainless Steel (SUS303/304)BrassBrassSteelSteel / Stainless Steel (SUS303/304) / Stainless Steel (SUS430F)Steel / Stainless Steel (SUS303/304) / Stainless Steel (SUS430F)SteelStainless Steel (SUS303/304) / BrassSteelSteelSteelBrassStainless Steel (SUS303/304)BrassBrassAluminumAluminumBrass
                                                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) ThreadUnified (Coarse) Thread / Unified (Fine) Thread / BSW (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Fine) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) ThreadMetric (Coarse) Thread
                                                Length L (after insertion) (D = Thread Dia. M)----1D / 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-1D / 1.5D / 2D / 2.5D / 3D / 0.8D / 3.5D1D / 1.5D / 2D / 2.5D / 3D / 0.8D / 3.5D---------2D / 2.5D-1D / 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 / 0.7D / 0.8D / 3.5D1D / 1.5D / 2D / 2.5D / 3D / 0.8D / 3.5D1D / 1.5D / 2D / 2.5D / 3D / 0.8D / 3.5D
                                                ApplicationLight Metal---Cast IronCast IronCast Iron-Cast IronLight Metal---------Resin General-Light MetalLight MetalLight MetalLight MetalLight Metal
                                                NotchNot Provided---Not ProvidedNot ProvidedNot Provided-Not ProvidedNot Provided----Not Provided----Not ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot ProvidedNot Provided
                                                Thread Dia. (After inserted), Unified(inch)--------------1/2 ~ No. 10-----------
                                                ShapeSlottedSlotted3-Hole TypeSmall O.D. Slotted TypeSlottedStandardStandard3-Hole TypeSlottedSlottedStandardWith Pin TypeTip Free TypeTip Free TypeSlottedStandardWith Pin TypeSmall O.D. 3-Hole TypeSmall O.D. 3-Hole TypeStandard3-Hole TypeStandardStandardStandardStandardSlotted
                                                Sales UnitLow 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.Box, Pkg.Low Quantity (Available beginning with 1 pc.)Box, Pkg.Box, Pkg.Low Quantity (Available beginning with 1 pc.)-Low Quantity (Available beginning with 1 pc.)-Low Quantity (Available beginning with 1 pc.)Low Quantity (Available beginning with 1 pc.)---Low Quantity (Available beginning with 1 pc.)Low Quantity (Available beginning with 1 pc.)Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.Box, Pkg.

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