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Domed (Acorn) Nuts

Category page for Cap Nuts. For MISUMI, you can select from nominal, type of material and type of surface processing. A range of products are handled, from regular metric thread types through imperial thread types.
In addition to general cap nuts, there are also serrated types, disc spring types, and friction types for preventing screws from loosening.
[Cap Nuts]
Cap nuts are hexagonal nuts closed on one side, so the threaded hole does not extend the whole length. This prevents bolts from sticking out, giving a beautiful appearance and preventing issues caused by snagging on protruding bolts.
These are sometimes called "cosmetic nuts" because they improve appearance and enhance safety. However, since one end of the nut part is blocked, one must consider the length of the thread relative to the bolt length to be used.
Days to Ship
  • All
  • 1 Day(s) or Less
  • 2 Day(s) or Less
  • 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
Brand
Product Series
CAD
Days to Ship
Nominal of Thread (M)
Material
Surface Treatment
Thread Type
Applications, Functions
Sales Unit
Nominal of Thread (inch)
Surface Treatment (Details)
Hex Nut Type
Locking Details

    Domed (Acorn) Nuts

      Wedge Nut with Cap

        Acorn Nut; Unified (UNC)

          Acorn Nut; Unified (UNF)

            Cap Nut

              Cap Nut (Former JIS)

                Terminal Acorn Nut

                  Stable cap nut

                    Acorn Nut, Weight

                      U Nut with Cap, Fine

                        Cap nut (stainless steel)

                          Box Nut Set [Stainless Steel] EA949SG

                            Cap Nut

                              Cap Nut (Left Male Screw)

                                Small Acorn Nut

                                  Cap Nut, Small, Fine

                                    Flanged Acorn Nut with Serrations

                                      Flanged Acorn Nut with no Serrations

                                        Eye Cap Nut

                                          Hex Weld Acorn Nut (Welded Nut) with Pilot

                                            Acorn Nut, 1 shape 1 type, Cutting Brass Low Cadmium (ECO-BS)

                                              Stable cap nut

                                                Self-locking Nut with Cap

                                                  Pure Titanium Class 1 Cap Nut

                                                    Acorn Nut; details

                                                      Acorn Nut; Other details

                                                        Insert Cap Nut

                                                          U Nut with Cap

                                                            Plastic cap nut

                                                              Cap nut (trivalent chromate)

                                                                U Nut With Cap (Thin)

                                                                  Insertion Bag Nut

                                                                    Stable Cap Nut

                                                                      Cap Nut (Import)

                                                                        Cap Nut Left Thread

                                                                          Self-Locking Nut with Cap

                                                                            Cap Nut (Imported Item) (Whitworth)

                                                                              Cap Nut (2 Type Class 2) (Imported Item)

                                                                                [Trivalent Chromate] Box Nut EA949LV-3

                                                                                  [Trivalent Chromate] Box Nut EA949LV-4

                                                                                    [Trivalent Chromate] Box Nut EA949LV-5

                                                                                      [Trivalent Chromate] Box Nut EA949LV-6

                                                                                        [Trivalent Chromate] Box Nut EA949LV-8

                                                                                          Box Nut Set EA949SH

                                                                                            E-LOCK (Hex Nut Type with Cap)

                                                                                            Brand

                                                                                            MISUMI

                                                                                            SUNCO

                                                                                            TSUKUMO

                                                                                            TSUKUMO

                                                                                            SUNCO

                                                                                            TSUKUMO

                                                                                            SUNCO

                                                                                            SOHWA SEISAKUSHO

                                                                                            SUNCO

                                                                                            FUJI SEIMITSU

                                                                                            TRUSCO NAKAYAMA

                                                                                            ESCO

                                                                                            OSUNG

                                                                                            TSUKUMO

                                                                                            TSUKUMO

                                                                                            TSUKUMO

                                                                                            SUNCO

                                                                                            TSUKUMO

                                                                                            SAKAMURA

                                                                                            TSUKUMO

                                                                                            SUNCO

                                                                                            SOHWA SEISAKUSHO

                                                                                            KST

                                                                                            MARUEMU WORKS

                                                                                            TSUKUMO

                                                                                            TSUKUMO

                                                                                            TSUKUMO

                                                                                            FUJI SEIMITSU

                                                                                            YAHATA

                                                                                            TRUSCO NAKAYAMA

                                                                                            SUNCO

                                                                                            SUNCO

                                                                                            SUNCO

                                                                                            SUNCO

                                                                                            SUNCO

                                                                                            SUNCO

                                                                                            SUNCO

                                                                                            SUNCO

                                                                                            ESCO

                                                                                            ESCO

                                                                                            ESCO

                                                                                            ESCO

                                                                                            ESCO

                                                                                            ESCO

                                                                                            SUNCO

                                                                                            Product Series

                                                                                            Domed (Acorn) Nuts

                                                                                            Wedge Nut with Cap

                                                                                            Acorn Nut; Unified (UNC)【1-4,000 Pieces Per Package】

                                                                                            Acorn Nut; Unified (UNF)【1-2,000 Pieces Per Package】

                                                                                            Cap Nut【1-5,000 Pieces Per Package】

                                                                                            Cap Nut (Former JIS)【2,000 Pieces Per Package】

                                                                                            Terminal Acorn Nut【200-500 Pieces Per Package】

                                                                                            Stable cap nut【1-1,000 Pieces Per Package】

                                                                                            Acorn Nut, Weight【1-2,000 Pieces Per Package】

                                                                                            U Nut with Cap, Fine【1-400 Pieces Per Package】

                                                                                            Cap nut (stainless steel)【6-40 Pieces Per Package】

                                                                                            Box Nut Set [Stainless Steel] EA949SG

                                                                                            Cap Nut【5-50 Pieces Per Package】

                                                                                            Cap Nut (Left Male Screw)【1-2,000 Pieces Per Package】

                                                                                            Small Acorn Nut【1-700 Pieces Per Package】

                                                                                            Cap Nut, Small, Fine【1-500 Pieces Per Package】

                                                                                            Flanged Acorn Nut with Serrations【1-2,000 Pieces Per Package】

                                                                                            Flanged Acorn Nut with no Serrations【1-2,000 Pieces Per Package】

                                                                                            Eye Cap Nut【300 Pieces Per Package】

                                                                                            Hex Weld Acorn Nut (Welded Nut) with Pilot【200-1,000 Pieces Per Package】

                                                                                            Acorn Nut, 1 shape 1 type, Cutting Brass Low Cadmium (ECO-BS)【1-500 Pieces Per Package】

                                                                                            Stable cap nut【1-1,000 Pieces Per Package】

                                                                                            Self-locking Nut with Cap【1-1,500 Pieces Per Package】

                                                                                            Pure Titanium Class 1 Cap Nut【200-500 Pieces Per Package】

                                                                                            Acorn Nut; details【1-600 Pieces Per Package】

                                                                                            Acorn Nut; Other details【1-300 Pieces Per Package】

                                                                                            Insert Cap Nut【350-1,500 Pieces Per Package】

                                                                                            U Nut with Cap【1-3,000 Pieces Per Package】

                                                                                            Plastic cap nut【2-4 Pieces Per Package】

                                                                                            Cap nut (trivalent chromate)【5-37 Pieces Per Package】

                                                                                            U Nut With Cap (Thin)

                                                                                            Insertion Bag Nut

                                                                                            Stable Cap Nut【100 Pieces Per Package】

                                                                                            Cap Nut (Import)【1-2,000 Pieces Per Package】

                                                                                            Cap Nut Left Thread

                                                                                            Self-Locking Nut with Cap

                                                                                            Cap Nut (Imported Item) (Whitworth)【1-300 Pieces Per Package】

                                                                                            Cap Nut (2 Type Class 2) (Imported Item)

                                                                                            [Trivalent Chromate] Box Nut EA949LV-3【9 Pieces Per Package】

                                                                                            [Trivalent Chromate] Box Nut EA949LV-4【9 Pieces Per Package】

                                                                                            [Trivalent Chromate] Box Nut EA949LV-5【8 Pieces Per Package】

                                                                                            [Trivalent Chromate] Box Nut EA949LV-6【7 Pieces Per Package】

                                                                                            [Trivalent Chromate] Box Nut EA949LV-8【4 Pieces Per Package】

                                                                                            Box Nut Set EA949SH

                                                                                            E-LOCK (Hex Nut Type with Cap)【45-1,000 Pieces Per Package】

                                                                                            CAD
                                                                                            • 2D / 3D
                                                                                            • 2D / 3D
                                                                                            • 2D / 3D
                                                                                            • 2D / 3D
                                                                                            • 2D / 3D
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                                                                                            • 2D / 3D
                                                                                            • 2D / 3D
                                                                                            • 2D / 3D
                                                                                            • 2D / 3D
                                                                                            • 2D / 3D
                                                                                            • 2D / 3D
                                                                                            • 2D / 3D
                                                                                            • 2D / 3D
                                                                                            • 2D / 3D
                                                                                            • 2D / 3D
                                                                                            • 2D / 3D
                                                                                            • 2D / 3D
                                                                                            Days to Ship 1 Day(s) or more 4 Day(s) or more 3 Day(s) or more 3 Day(s) or more 1 Day(s) or more 4 Day(s) or more 4 Day(s) or more 3 Day(s) or more 1 Day(s) or more 4 Day(s) or more 3 Day(s) or more 4 Day(s) or more 7 Day(s) or more 4 Day(s) or more 3 Day(s) or more 3 Day(s) or more 3 Day(s) or more 3 Day(s) or more 5 Day(s) or more 3 Day(s) or more 3 Day(s) or more 3 Day(s) or more 4 Day(s) or more 4 Day(s) or more 3 Day(s) or more 3 Day(s) or more 4 Day(s) or more 3 Day(s) or more 3 Day(s) or more 3 Day(s) or more 4 Day(s) or more 5 Day(s) or more 14 Day(s) or more 5 Day(s) or more 5 Day(s) or more 4 Day(s) or more 5 Day(s) or more 5 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 14 Day(s) or more
                                                                                            Nominal of Thread (M)3 ~ 244 ~ 12--3 ~ 4846 ~ 84 ~ 20-103 ~ 12-3 ~ 165 ~ 208 ~ 1210 ~ 204 ~ 84 ~ 884 ~ 123 ~ 124 ~ 205 ~ 206 ~ 128 ~ 2210 ~ 125 ~ 105 ~ 244 ~ 83 ~ 12105124 ~ 20245-6 ~ 20------4 ~ 20
                                                                                            MaterialStainless SteelStainless SteelStainless SteelStainless SteelBrass ~ TitaniumSteelSteelStainless Steel ~ SteelBrass ~ SteelSteelStainless Steel-SteelStainless Steel ~ SteelStainless Steel ~ SteelStainless Steel ~ SteelStainless Steel ~ SteelStainless Steel ~ SteelSteelSteelBrassStainless Steel ~ SteelStainless Steel ~ SteelTitaniumStainless Steel ~ SteelSteelSteelStainless Steel ~ SteelPlasticStainless SteelSteelSteelSteelStainless Steel ~ SteelStainless SteelStainless SteelStainless Steel ~ SteelStainless Steel------Stainless Steel ~ Steel
                                                                                            Surface TreatmentNot Provided-Not Provided / Painting, Coating / Silver/Copper/Tin PlatingNot Provided / Painting, Coating / Silver/Copper/Tin PlatingTrivalent Chromate / Bright Chrome Plating / Zinc Plating / Chromate Plating / Nickel Plating / Chrome Plating / Parkerizing / Painting, Coating / Silver/Copper/Tin PlatingNot Provided / Bright Chrome PlatingTrivalent ChromateNot Provided / Bright Chrome Plating / Chromate PlatingTrivalent Chromate / Bright Chrome Plating / Chromate Plating / Nickel Plating / Chrome Plating / Painting, Coating / Silver/Copper/Tin Plating-Not Provided-Not ProvidedNot Provided / Trivalent Chromate / Bright Chrome Plating / Chromate Plating / Nickel Plating / Painting, Coating / Silver/Copper/Tin PlatingNot Provided / Trivalent Chromate / Bright Chrome Plating / Chromate Plating / Nickel Plating / Chrome Plating / Painting, Coating / Silver/Copper/Tin PlatingNot Provided / Trivalent Chromate / Bright Chrome Plating / Chromate Plating / Nickel Plating / Chrome Plating / Painting, Coating / Silver/Copper/Tin PlatingNot Provided / Trivalent Chromate / Bright Chrome Plating / Chromate Plating / Nickel Plating / Chrome Plating / Painting, Coating / Silver/Copper/Tin PlatingNot Provided / Trivalent Chromate / Bright Chrome Plating / Chromate Plating / Nickel Plating / Chrome Plating / Painting, Coating / Silver/Copper/Tin PlatingTrivalent ChromateNot ProvidedNickel PlatingNot Provided / Bright Chrome Plating / Chromate PlatingNot Provided / Trivalent Chromate / Bright Chrome Plating / Zinc Plating / Chromate Plating / Nickel Plating / Painting, Coating / Silver/Copper/Tin PlatingNot ProvidedNot Provided / Trivalent Chromate / Bright Chrome Plating / Chromate Plating / Nickel Plating / Chrome Plating / Painting, Coating / Silver/Copper/Tin PlatingNot Provided / Trivalent Chromate / Bright Chrome Plating / Chromate Plating / Nickel Plating / Chrome Plating / Silver/Copper/Tin PlatingBright Chrome Plating--Trivalent ChromateTrivalent ChromateTrivalent ChromateTrivalent ChromateBright Chrome Plating / Painting, Coating / Silver/Copper/Tin Plating--Bright Chrome Plating / Painting, Coating / Silver/Copper/Tin Plating-------Trivalent Chromate
                                                                                            Thread TypeMetric, CoarseMetric, CoarseUnified, Coarse (UNC)Unified, Coarse (UNC)Metric, CoarseMetric, CoarseMetric, CoarseMetric, CoarseWhit, CoarseMetric, CoarseMetric, Coarse / Whit, Coarse--Metric, Coarse (Left)Metric, CoarseMetric, FineMetric, CoarseMetric, CoarseMetric, CoarseMetric, CoarseMetric, CoarseMetric, CoarseMetric, CoarseMetric, CoarseMetric, FineMetric, FineMetric, CoarseMetric, Coarse-Metric, CoarseMetric, FineMetric, CoarseMetric, CoarseMetric, CoarseMetric, Coarse (Left)Metric, CoarseWhit, CoarseMetric, Coarse------Metric, Coarse
                                                                                            Applications, FunctionsStandardLockStandardStandardStandardStandardStandardLockStandardLockStandard--StandardStandardStandardStandardStandardStandardFor WeldingStandardLockLockStandardStandardStandard-Lock-StandardStandardStandardStandardStandardStandardLockStandardStandard------Lock
                                                                                            Sales UnitLow 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.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.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.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.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.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.)Low Quantity (Available beginning with 1 pc.)Low Quantity (Available beginning with 1 pc.)------Box, Pkg.
                                                                                            Nominal of Thread (inch)--1/2 ~ No. 101/2 ~ No. 10----1 ~ 7/8-3/8-1/2 ~ 5/16-----------------------1/2 ~ 3/8--------
                                                                                            Surface Treatment (Details)Not Provided-Copper Plating / Black Paint / Not ProvidedCopper Plating / Black Paint / Not ProvidedCopper Plating / Black Paint / Trivalent Chromate / Bright Chrome Plating / Hot Zinc Plating / Chromate Plating / Nickel Plating / Chrome Plating / ParkerizingNot Provided / Bright Chrome PlatingTrivalent ChromateNot Provided / Bright Chrome Plating / Chromate PlatingCopper Plating / Black Paint / Trivalent Chromate / Bright Chrome Plating / Chromate Plating / Nickel Plating / Chrome PlatingNot Provided / Bright Chrome Plating / Chromate PlatingNot Provided--Copper Plating / Black Paint / Not Provided / Trivalent Chromate / Bright Chrome Plating / Chromate Plating / Nickel PlatingCopper Plating / Black Paint / Not Provided / Trivalent Chromate / Bright Chrome Plating / Chromate Plating / Nickel Plating / Chrome PlatingCopper Plating / Black Paint / Not Provided / Trivalent Chromate / Bright Chrome Plating / Chromate Plating / Nickel Plating / Chrome PlatingCopper Plating / Black Paint / Not Provided / Trivalent Chromate / Bright Chrome Plating / Chromate Plating / Nickel Plating / Chrome PlatingCopper Plating / Black Paint / Not Provided / Trivalent Chromate / Bright Chrome Plating / Chromate Plating / Nickel Plating / Chrome PlatingTrivalent ChromateNot ProvidedNickel PlatingNot Provided / Bright Chrome Plating / Chromate PlatingCopper Plating / Black Paint / Not Provided / Trivalent Chromate / Bright Chrome Plating / Zinc Plating / Chromate Plating / Nickel PlatingNot ProvidedCopper Plating / Black Paint / Not Provided / Trivalent Chromate / Bright Chrome Plating / Chromate Plating / Nickel Plating / Chrome PlatingCopper Plating / Not Provided / Trivalent Chromate / Bright Chrome Plating / Chromate Plating / Nickel Plating / Chrome PlatingBright Chrome PlatingNot Provided / Trivalent Chromate / Bright Chrome Plating / Chromate PlatingNot ProvidedTrivalent ChromateTrivalent ChromateTrivalent ChromateTrivalent ChromateCopper Plating / Black Paint / Seizure-Against Coating / Bright Chrome Plating--Copper Plating / Black Paint / Seizure-Against Coating / Bright Chrome Plating-------Trivalent Chromate
                                                                                            Hex Nut Type----Class 2---Class 2---------------------Class 2--Class 2Class 2-Class 2Class 2-------
                                                                                            Locking Details-Wedge nut-----Friction Nut-U Nut-----------Friction NutFriction Nut----U Nut-------Friction Nut--------Friction Nut

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