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Unified screw, Inch screw(Thread Nominal (inch):1/4)

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

  • Standard
  • Pan Head
  • Flat Head
  • Button Head Cap
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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 31/03/2025

    Whitworth Hex Bolt

    • On Sale Till 31/03/2025

    Hex Socket Head Cap Screws UNC

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

      • On Sale Till 31/03/2025

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

      • On Sale Till 31/03/2025

      Hex Socket Head Cap Screws UNF

        Hex Socket Head Bolt (UNRF) (Cap Screw)

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

          • On Sale Till 31/03/2025

          Hex Socket Head Bolt (Imperial Thread) SNSS

          • On Sale Till 31/03/2025

          Phillips Flat Head Screw UNF

          • On Sale Till 31/03/2025

          Coarse Unified Hex Bolt, G-5

          • On Sale Till 31/03/2025

          Fine Unified Hex Bolt, G-5

          • On Sale Till 31/03/2025

          Hex Socket Flat Head Cap Screws UNC

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

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

              • On Sale Till 31/03/2025

              Hex Bolt, Fully Threaded, Whitworth

              • On Sale Till 31/03/2025

              Phillips Pan Head Screw UNC

              • On Sale Till 31/03/2025

              Phillips Flat Head Screw

              • On Sale Till 31/03/2025

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

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

                • On Sale Till 31/03/2025

                UNC Flat Unified Screw

                • On Sale Till 31/03/2025

                Meter-Cut Right Thread Whitworth

                • On Sale Till 31/03/2025

                Phillips Pan Head Screw UNF

                • On Sale Till 31/03/2025

                Hex Socket Button Head Cap Screw UNC

                • On Sale Till 31/03/2025

                Hex Socket Button Head Cap Screw UNF

                  Hex Socket Flat Head Cap Screws UNF

                  • On Sale Till 31/03/2025

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

                    Whitworth Slotted Flat Screw

                      Whitworth Slotted Round Screw

                      Brand

                      SPS/UNBRAKO

                      SUNCO

                      SUNCO

                      SPS/UNBRAKO

                      NABEYA BI-TECH

                      SUNCO

                      SPS/UNBRAKO

                      SPS/UNBRAKO

                      NABEYA BI-TECH

                      SUNCO

                      SUNCO

                      SUNCO

                      SUNCO

                      SPS/UNBRAKO

                      SPS/UNBRAKO

                      SUNCO

                      SUNCO

                      SUNCO

                      SUNCO

                      SPS/UNBRAKO

                      SUNCO

                      SUNCO

                      SUNCO

                      SUNCO

                      SUNCO

                      SUNCO

                      SUNCO

                      SUNCO

                      SUNCO

                      Product Series

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

                      Whitworth Hex Bolt

                      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】

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

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

                      Hex Socket Head Bolt (UNRF) (Cap Screw)

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

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

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

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

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

                      Hex Socket Flat Head Cap Screws UNC【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)

                      Hex Bolt, Fully Threaded, Whitworth【1-500 Pieces Per Package】

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

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

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

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

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

                      Meter-Cut Right Thread Whitworth

                      Phillips Pan Head Screw UNF

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

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

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

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

                      Whitworth Slotted Flat Screw【1-700 Pieces Per Package】

                      Whitworth Slotted Round Screw【1-600 Pieces Per Package】

                      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
                      Days to Ship 8 Day(s) 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 Same day or more 8 Day(s) 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 Same day or more Same day 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 8 Day(s) or more 8 Day(s) or more Same day or more 8 Day(s) or more 8 Day(s) or more
                      Detailed ShapeStandardStandardStandardFlat HeadButton Head CapStandardStandardButton Head CapStandardFlat HeadStandardStandardFlat HeadStandardButton Head CapStandardPan HeadFlat Head-StandardFlat HeadStandardPan HeadButton Head CapButton Head CapFlat Head-Flat HeadPan Head
                      Thread TypeUnified Coarse UNCWit CoarseUnified Coarse UNCUnified Coarse UNCUnified Coarse UNCUnified Fine UNFUnified Fine UNFUnified Fine UNFUnified Coarse UNC / Unified Fine UNFUnified Fine UNFUnified Coarse UNCUnified Fine UNFUnified Coarse UNCUnified Fine UNFUnified Coarse UNCWit CoarseUnified Coarse UNCUnified Coarse UNCUnified Fine UNFUnified Coarse UNCUnified Coarse UNCWit CoarseUnified Fine UNFUnified Coarse UNCUnified Fine UNFUnified Fine UNFUnified Coarse UNCWit CoarseWit Coarse
                      Thread Nominal (inch)1/41/41/41/41/41/41/41/41/41/41/41/41/41/41/41/41/41/41/41/41/41/41/41/41/41/41/41/41/4
                      Length L (inch)1 ~ 7/8-1 ~ 7/161 ~ 5/8-1 ~ 7/161 ~ 7/81/2-1 ~ 5/81 ~ 7/81 ~ 7/81 ~ 7/81 ~ 5/161/2 ~ 5/8-1 ~ 7/161 ~ 7/81 ~ 7/161/2 ~ 7/81 ~ 7/8-1 ~ 5/81 ~ 7/81 ~ 7/81 ~ 7/81 ~ 7/16--
                      Length L (mm)-10 ~ 50-------------8 ~ 100-----1000-----10 ~ 10010 ~ 100
                      Mounting Hole ShapeHex SocketHex SocketHex SocketHex SocketHex SocketHex SocketHex SocketHex SocketHex SocketCross RecessedN/AN/AHex SocketHex SocketHex SocketN/ACross RecessedCross RecessedHex SocketHex SocketCross RecessedN/ACross RecessedHex SocketHex SocketHex SocketHex SocketNegativeNegative
                      MaterialSteelStainless ~ SteelStainless ~ SteelSteelStainlessStainless ~ SteelSteelSteelStainlessStainlessStainless ~ SteelStainless ~ SteelStainless ~ SteelSteelSteelBrass ~ SteelStainlessStainlessStainless ~ SteelSteelStainlessSteelStainlessStainless ~ SteelStainless ~ SteelStainless ~ SteelStainless ~ SteelBrass ~ SteelBrass ~ Steel
                      Surface TreatmentN/ABlack Oxide CoatingBlack Oxide CoatingN/AN/ABlack Oxide CoatingN/AN/AN/A-N/A / Black Oxide Coating / Trivalent Chromate / UniChrome Plating / Chromate Plating / Chrome Plating / Stainless CoatingN/A / Black Oxide Coating / UniChrome Plating / Chromate Plating / Chrome Plating / Stainless CoatingN/A / Black Oxide CoatingN/AN/AN/A / Black Oxide Coating / Trivalent Chromate / UniChrome Plating / Hot Dip Galvanizing / Chromate Plating / Nickel Plating / Parker / Stainless CoatingBlack Painted-Black Oxide CoatingN/A-N/A-N/A / Black Oxide CoatingBlack Oxide CoatingBlack Oxide CoatingBlack Oxide CoatingN/A / Trivalent Chromate / UniChrome Plating / Chromate PlatingTrivalent Chromate / UniChrome Plating / Chromate Plating / Nickel Plating
                      Tip ShapeFlat EndFlat EndFlat EndFlat EndFlat EndFlat EndFlat EndFlat EndFlat EndFlat EndFlat EndFlat EndFlat EndOther Special ShapesFlat EndFlat EndFlat EndFlat EndCup PointOther Special ShapesFlat End-Flat EndFlat EndFlat EndFlat EndCup PointFlat 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.)Bulk (Purchasing from 1 pc.)Bulk (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 / 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 / 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 / Package
                      ApplicationStandard-StandardStandardStandardStandardStandardStandardStandardStandardStandardStandardStandardStandardStandardStandardStandardStandardStandardStandardStandard-StandardStandardStandardStandardStandard--
                      Strength Class (Steel)-----------------------------

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                      Related Categories to Unified screw, Inch screw