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Unified screw, Inch screw(Surface Treatment:Hot Dip Galvanizing)

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 Bolts Fully Threaded JIS

    • On Sale Till 31/03/2026

    Hex Bolt, Fully Threaded, Whitworth

      Witworth Cut Bolt

        Whitworth Slotted Flat Screw

        • On Sale Till 31/03/2026

        Meter-Cut Right Thread Whitworth

        Brand

        SUNCO

        SUNCO

        SUNCO

        SUNCO

        SUNCO

        Product Series

        Hex Bolts Fully Threaded JIS

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

        Witworth Cut Bolt

        Whitworth Slotted Flat Screw【80-120 Pieces Per Package】

        Meter-Cut Right Thread Whitworth

        CAD
        • 2D / 3D
        Days to Ship 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
        Detailed ShapeStandardStandardStandardFlat HeadStandard
        Thread TypeWit CoarseWit CoarseWit CoarseWit CoarseWit Coarse
        Thread Nominal (inch)3/81/2 ~ 5/161/2 ~ 7/83/81/2
        Length L (inch)-----
        Length L (mm)16 ~ 7512 ~ 15020 ~ 22532 ~ 651000
        Mounting Hole Shape-N/AN/ANegativeN/A
        MaterialSteelSteelSteelSteelSteel
        Surface TreatmentHot Dip GalvanizingHot Dip GalvanizingHot Dip GalvanizingHot Dip GalvanizingHot Dip Galvanizing
        Tip ShapeFlat EndFlat EndFlat EndFlat End-
        Sales UnitBulk (Purchasing from 1 pc.)Bulk (Purchasing from 1 pc.) ~ Box / PackageBulk (Purchasing from 1 pc.) ~ Box / PackageBox / PackageBox / Package
        ApplicationStandardStandardStandard--
        Strength Class (Steel)-----

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        Related Categories to Unified screw, Inch screw