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Unified screw, Inch screw

Category page for Unified / Imperial / Whitworth Screws. This category has a lineup of screws using international standards such as UNC / UNF / Whitworth. Sizes can be selected from nominal No. 0 to 12, 3/16 to 1 inch, length 1/16 to 10 inches, with 3 kinds of materials and 11 kinds of surface processing.

[Unified / Imperial / Whitworth Threads]
Products with threads cut in imperial units instead of metric units like those of parts regularly sold in Japan. These standards are commonly used in the US and the UK. These may be used for aircraft and import/export items.
Whitworth screw products originated in England and have threads cut at 55 degrees. Although this thread type has been removed from JIS standards, it is still currently used in buildings, electrical, water, and air conditioning facilities even in Japan.

Detailed Shape

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Brand
Product Series
CAD
Days to Ship
Detailed Shape
Thread Type
Thread Nominal (inch)
Length L (inch)
Length L (mm)
Mounting Hole Shape
Material
Surface Treatment
Tip Shape
Sales Unit
Application
Strength Class (Steel)

    Hex Socket Head Bolt (UNC) (Cap Screw)

    • On Sale Till 31/03/2026

    Hex Socket Head Cap Screws UNC

      Flat Bolt with Hex Socket Bolt (UNC) (Flat Cap Screw)

      • On Sale Till 31/03/2026

      Coarse Unified Hex Bolt, G-5

      • On Sale Till 31/03/2026

      Phillips Pan Head Screw UNC

      • On Sale Till 31/03/2026

      Hex Socket Head Cap Screws UNF

      • On Sale Till 31/03/2026

      Hex Bolt, Fully Threaded, Whitworth

      • On Sale Till 31/03/2026

      Whitworth Hex Bolt

        Hex Bolts Fully Threaded JIS

        • On Sale Till 31/03/2026

        Hex Socket Button Head Cap Screw UNC

        • On Sale Till 31/03/2026

        Hex Socket Set Screw Cup Point UNC (Unified Coarse Threads)

          Button Bolt with Hex Socket (UNF) (Button Cap Screw)

            Flat Bolt With Hex Socket (UNF) (Flat Cap Screw)

              Hex Bolt, Partially Threaded, Whitworth

                Whitworth Fully Threaded Hex Bolt - Strength Classification = 10.9

                • On Sale Till 31/03/2026

                UNC Flat Unified Screw

                • On Sale Till 31/03/2026

                Hex Socket Head Bolt (Imperial Thread) SNSS

                • On Sale Till 31/03/2026

                Hex Socket Button Head Cap Screw (Inch Thread) - SNBS

                • On Sale Till 31/03/2026

                Phillips Flat Head Screw

                • On Sale Till 31/03/2026

                Phillips Pan Head Screw UNF

                • On Sale Till 31/03/2026

                Phillips Flat Head Screw UNF

                • On Sale Till 31/03/2026

                Fine Unified Hex Bolt, G-5

                • On Sale Till 31/03/2026

                Hex Socket Button Head Cap Screw UNF

                • On Sale Till 31/03/2026

                Hex Socket Flat Head Cap Screws UNC

                  Hex Socket Flat Head Cap Screws UNF

                  • On Sale Till 31/03/2026

                  Hex Socket Set Screw Cup Point UNF (Unified Fine Threads)

                    Witworth Cut Bolt

                      Hex Socket Head Bolt (UNRF) (Cap Screw)

                        Set Screw with Hex Socket (UNC), (Hollow Set), (Serrated Teeth)

                          Set Screw with Hex Socket (UNF), (Hollow Set), (Serrated Teeth)

                            Button Bolt with Hex Socket (UNC) (Button Cap Screw)

                              Whitworth Slotted Flat Screw

                              • On Sale Till 31/03/2026

                              Whitworth Slotted Round Screw

                                Whitworth Hex Bolt - Strength Classification = 10.9

                                  UNC Slotted Flat Screw

                                    Standard Head-Cut Left Screw Whitworth

                                    • On Sale Till 31/03/2026

                                    Meter-Cut Right Thread Whitworth

                                      Hexagonal-Hole Bolt Set [Inch] EA949AD-14

                                      Brand

                                      SPS/UNBRAKO

                                      SUNCO

                                      SPS/UNBRAKO

                                      SUNCO

                                      SUNCO

                                      SUNCO

                                      SUNCO

                                      SUNCO

                                      SUNCO

                                      SUNCO

                                      SUNCO

                                      SPS/UNBRAKO

                                      SPS/UNBRAKO

                                      SUNCO

                                      SUNCO

                                      SUNCO

                                      NABEYA BI-TECH

                                      NABEYA BI-TECH

                                      SUNCO

                                      SUNCO

                                      SUNCO

                                      SUNCO

                                      SUNCO

                                      SUNCO

                                      SUNCO

                                      SUNCO

                                      SUNCO

                                      SPS/UNBRAKO

                                      SPS/UNBRAKO

                                      SPS/UNBRAKO

                                      SPS/UNBRAKO

                                      SUNCO

                                      SUNCO

                                      SUNCO

                                      SUNCO

                                      SUNCO

                                      SUNCO

                                      ESCO

                                      Product Series

                                      Hex Socket Head Bolt (UNC) (Cap Screw)【1-100 Pieces Per Package】

                                      Hex Socket Head Cap Screws UNC【1-100 Pieces Per Package】

                                      Flat Bolt with Hex Socket Bolt (UNC) (Flat Cap Screw)【1-100 Pieces Per Package】

                                      Coarse Unified Hex Bolt, G-5【1-650 Pieces Per Package】

                                      Phillips Pan Head Screw UNC【1-5,000 Pieces Per Package】

                                      Hex Socket Head Cap Screws UNF【1-100 Pieces Per Package】

                                      Hex Bolt, Fully Threaded, Whitworth【1-1,000 Pieces Per Package】

                                      Whitworth Hex Bolt【1-100 Pieces Per Package】

                                      Hex Bolts Fully Threaded JIS【1-300 Pieces Per Package】

                                      Hex Socket Button Head Cap Screw UNC【1-100 Pieces Per Package】

                                      Hex Socket Set Screw Cup Point UNC (Unified Coarse Threads)【1-100 Pieces Per Package】

                                      Button Bolt with Hex Socket (UNF) (Button Cap Screw)

                                      Flat Bolt With Hex Socket (UNF) (Flat Cap Screw)【1-100 Pieces Per Package】

                                      Hex Bolt, Partially Threaded, Whitworth【1-25 Pieces Per Package】

                                      Whitworth Fully Threaded Hex Bolt - Strength Classification = 10.9

                                      UNC Flat Unified Screw【1-100 Pieces Per Package】

                                      Hex Socket Head Bolt (Imperial Thread) SNSS【1-10 Pieces Per Package】

                                      Hex Socket Button Head Cap Screw (Inch Thread) - SNBS【1-10 Pieces Per Package】

                                      Phillips Flat Head Screw【1-500 Pieces Per Package】

                                      Phillips Pan Head Screw UNF【1-500 Pieces Per Package】

                                      Phillips Flat Head Screw UNF【1-100 Pieces Per Package】

                                      Fine Unified Hex Bolt, G-5【1-650 Pieces Per Package】

                                      Hex Socket Button Head Cap Screw UNF【1-100 Pieces Per Package】

                                      Hex Socket Flat Head Cap Screws UNC【1-100 Pieces Per Package】

                                      Hex Socket Flat Head Cap Screws UNF【1-100 Pieces Per Package】

                                      Hex Socket Set Screw Cup Point UNF (Unified Fine Threads)【1-100 Pieces Per Package】

                                      Witworth Cut Bolt【1-1,000 Pieces Per Package】

                                      Hex Socket Head Bolt (UNRF) (Cap Screw)【1-100 Pieces Per Package】

                                      Set Screw with Hex Socket (UNC), (Hollow Set), (Serrated Teeth)【1-100 Pieces Per Package】

                                      Set Screw with Hex Socket (UNF), (Hollow Set), (Serrated Teeth)【1-100 Pieces Per Package】

                                      Button Bolt with Hex Socket (UNC) (Button Cap Screw)【1-100 Pieces Per Package】

                                      Whitworth Slotted Flat Screw【1-1,100 Pieces Per Package】

                                      Whitworth Slotted Round Screw【1-1,200 Pieces Per Package】

                                      Whitworth Hex Bolt - Strength Classification = 10.9【1-120 Pieces Per Package】

                                      UNC Slotted Flat Screw【100 Pieces Per Package】

                                      Standard Head-Cut Left Screw Whitworth

                                      Meter-Cut Right Thread Whitworth

                                      Hexagonal-Hole Bolt Set [Inch] EA949AD-14

                                      CAD
                                      • 2D / 3D
                                      • 2D / 3D
                                      • 2D / 3D
                                      • 2D / 3D
                                      • 2D / 3D
                                      • 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 8 Day(s) or more Same day or more 8 Day(s) or more Same day or more Same day or more Same day or more Same day or more Same day or more 8 Day(s) or more Same day or more Same day or more 8 Day(s) or more 8 Day(s) or more 8 Day(s) or more 8 Day(s) or more Same day or more Same day or more Same day or more Same day or more Same day or more Same day or more Same day or more Same day or more Same day or more 8 Day(s) or more Same day or more 8 Day(s) or more 8 Day(s) or more 8 Day(s) or more 8 Day(s) or more 8 Day(s) or more 8 Day(s) or more Same day or more 8 Day(s) or more 8 Day(s) or more 8 Day(s) or more Same day or more 8 Day(s) or more
                                      Detailed ShapeStandardStandardFlat HeadStandardPan HeadStandardStandardStandardStandardButton Head Cap-Button Head CapFlat HeadStandardStandardFlat HeadStandardButton Head CapFlat HeadPan HeadFlat HeadStandardButton Head CapFlat HeadFlat Head-StandardStandardStandardStandardButton Head CapFlat HeadPan HeadStandardFlat HeadStandardStandard-
                                      Thread TypeUnified Coarse UNCUnified Coarse UNCUnified Coarse UNCUnified Coarse UNCUnified Coarse UNCUnified Fine UNFWit CoarseWit CoarseWit CoarseUnified Coarse UNCUnified Coarse UNCUnified Fine UNFUnified Fine UNFWit CoarseWit CoarseUnified Coarse UNCUnified Coarse UNC / Unified Fine UNFUnified Coarse UNCUnified Coarse UNCUnified Fine UNFUnified Fine UNFUnified Fine UNFUnified Fine UNFUnified Coarse UNCUnified Fine UNFUnified Fine UNFWit CoarseUnified Fine UNFUnified Coarse UNCUnified Fine UNFUnified Coarse UNCWit CoarseWit CoarseWit CoarseUnified Coarse UNCWhitworth Coarse Thread (Left)Wit Coarse-
                                      Thread Nominal (inch)NO.10 ~ 7/16NO.1 ~ 9/16NO.10 ~ 5/16NO.10 ~ 9/16NO.1 ~ 5/16NO.0 ~ 9/161 ~ 7/161/2 ~ 7/161/2 ~ 5/16NO.10 ~ 5/16NO.10 ~ 7/16NO.10 ~ 5/16NO.101 ~ 7/85/8NO.10 ~ 3/8NO.10 ~ 5/16NO.10 ~ 1/4NO.10 ~ 5/16NO.0 ~ 1/4NO.0 ~ 1/41/2 ~ 9/16NO.0 ~ 5/16NO.10 ~ 7/16NO.0 ~ 5/16NO.0 ~ 7/161/2 ~ 7/8NO.0 ~ 7/16NO.10 ~ 5/16NO.10 ~ 5/16NO.10 ~ 5/161/2 ~ 5/161/2 ~ 5/161 ~ 5/16NO.23/81 1/2 ~ 5/8-
                                      Length L (inch)1 ~ 81 ~ 101 ~ 5/81 ~ 101 ~ 9/161 ~ 9/161 ~ 7/8--1 ~ 7/161 ~ 7/161/2 ~ 5/81/2 ~ 5/8--1 ~ 7/16--1 ~ 7/161 ~ 7/161 ~ 7/161 ~ 7/81 ~ 7/161 ~ 7/161 ~ 7/161 ~ 7/16-1 ~ 7/81 ~ 7/81 ~ 5/161 ~ 5/8---1/4---
                                      Length L (mm)-14 ~ 16----8 ~ 30010 ~ 15016 ~ 150----40 ~ 30060------45----20 ~ 345----10 ~ 1506 ~ 10020 ~ 230-2851000 ~ 1500-
                                      Mounting Hole ShapeHex SocketHex SocketHex SocketN/ACross RecessedHex SocketN/AHex Socket-Hex SocketHex SocketHex SocketHex SocketN/AN/ACross RecessedHex SocketHex SocketCross RecessedCross RecessedCross RecessedN/AHex SocketHex SocketHex SocketHex SocketN/AHex SocketHex SocketHex SocketHex SocketNegativeNegativeN/ANegative-N/A-
                                      MaterialSteelStainless ~ SteelSteelStainless ~ SteelStainless ~ SteelStainless ~ SteelBrass ~ SteelStainless ~ SteelSteelStainless ~ SteelStainless ~ SteelSteelSteelStainless ~ SteelSteelStainlessStainlessStainlessStainless ~ SteelStainless ~ SteelStainlessStainless ~ SteelStainless ~ SteelStainless ~ SteelStainless ~ SteelStainless ~ SteelSteelSteelSteelSteelSteelBrass ~ SteelBrass ~ SteelSteelStainlessSteelStainless ~ Steel-
                                      Surface TreatmentN/AN/A / Black Oxide CoatingN/AN/A / Black Oxide Coating / Trivalent Chromate / UniChrome Plating / Chromate Plating / Chrome Plating / Stainless CoatingBlack Painted / N/A / Non-chrome / Trivalent Chromate / UniChrome Plating / Chromate Plating / Nickel Plating / Chrome Plating / Stainless CoatingBlack Oxide CoatingN/A / Black Oxide Coating / Trivalent Chromate / UniChrome Plating / Hot Dip Galvanizing / Chromate Plating / Nickel Plating / Parker / Stainless CoatingN/A / Black Oxide CoatingBlack Oxide Coating / Trivalent Chromate / UniChrome Plating / Hot Dip Galvanizing / Chromate Plating / Nickel Plating / Chrome Plating / ParkerN/A / Black Oxide CoatingBlack Oxide CoatingN/AN/AN/A / Black Oxide Coating / UniChrome Plating / Chromate Plating / Stainless CoatingBlack Oxide Coating-N/AN/ANickel PlatingBlack Painted / N/A / Non-chrome / Trivalent Chromate / UniChrome Plating / Chromate Plating / Stainless CoatingN/AN/A / Black Oxide Coating / Trivalent Chromate / UniChrome Plating / Chromate Plating / Nickel Plating / Chrome Plating / Stainless CoatingBlack Oxide CoatingN/A / Black Oxide CoatingN/A / Black Oxide CoatingBlack Oxide CoatingBlack Oxide Coating / UniChrome Plating / Hot Dip Galvanizing / Stainless CoatingN/AN/AN/AN/AN/A / Trivalent Chromate / UniChrome Plating / Hot Dip Galvanizing / Chromate Plating / Nickel PlatingTrivalent Chromate / UniChrome Plating / Chromate Plating / Nickel PlatingBlack Oxide Coating / UniChrome Plating / Chromate Plating / Stainless Coating-UniChrome PlatingN/A / Trivalent Chromate / UniChrome Plating / Hot Dip Galvanizing-
                                      Tip ShapeFlat EndFlat EndFlat EndFlat EndFlat EndFlat EndFlat EndFlat EndFlat EndFlat EndCup PointFlat EndFlat EndFlat End-Flat EndFlat EndFlat EndFlat EndFlat EndFlat EndFlat EndFlat EndFlat EndFlat EndCup PointFlat EndFlat EndOther Special ShapesOther Special ShapesFlat EndFlat EndFlat EndFlat EndFlat EndFlat End--
                                      Sales UnitBulk (Purchasing from 1 pc.) ~ Box / PackageBulk (Purchasing from 1 pc.) ~ Box / PackageBulk (Purchasing from 1 pc.) ~ Box / PackageBulk (Purchasing from 1 pc.) ~ Box / PackageBulk (Purchasing from 1 pc.) ~ Box / PackageBulk (Purchasing from 1 pc.) ~ Box / PackageBulk (Purchasing from 1 pc.) ~ Box / PackageBulk (Purchasing from 1 pc.) ~ Box / PackageBulk (Purchasing from 1 pc.) ~ Box / PackageBulk (Purchasing from 1 pc.) ~ Box / PackageBulk (Purchasing from 1 pc.) ~ Box / PackageBulk (Purchasing from 1 pc.)Bulk (Purchasing from 1 pc.) ~ Box / PackageBulk (Purchasing from 1 pc.) ~ Box / PackageBox / PackageBulk (Purchasing from 1 pc.) ~ Box / PackageBulk (Purchasing from 1 pc.) ~ Box / PackageBulk (Purchasing from 1 pc.) ~ Box / PackageBulk (Purchasing from 1 pc.) ~ Box / PackageBulk (Purchasing from 1 pc.) ~ Box / PackageBulk (Purchasing from 1 pc.) ~ Box / PackageBulk (Purchasing from 1 pc.) ~ Box / PackageBulk (Purchasing from 1 pc.) ~ Box / PackageBulk (Purchasing from 1 pc.) ~ Box / PackageBulk (Purchasing from 1 pc.) ~ Box / PackageBulk (Purchasing from 1 pc.) ~ Box / PackageBulk (Purchasing from 1 pc.) ~ Box / PackageBulk (Purchasing from 1 pc.) ~ Box / PackageBulk (Purchasing from 1 pc.) ~ Box / PackageBulk (Purchasing from 1 pc.) ~ Box / PackageBulk (Purchasing from 1 pc.) ~ Box / PackageBulk (Purchasing from 1 pc.) ~ Box / PackageBulk (Purchasing from 1 pc.) ~ Box / PackageBulk (Purchasing from 1 pc.) ~ Box / PackageBox / PackageBulk (Purchasing from 1 pc.)Bulk (Purchasing from 1 pc.) ~ Box / Package-
                                      ApplicationStandardStandardStandardStandardStandardStandardStandard-StandardStandardStandardStandardStandard-High StrengthStandardStandardStandardStandardStandardStandardStandardStandardStandardStandardStandardStandardStandardStandardStandardStandard--High StrengthStandardStandard--
                                      Strength Class (Steel)--------------10.9------------------10.9----

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                                      Related Categories to Unified screw, Inch screw