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    • Machine Screw Nuts - 18-8 Stainless Steel Black Oxide








  • Hex Machine Screw Nuts Black Oxide 18-8 Stainless Steel

    Hex Machine Screw Nuts Black Oxide 18-8 Stainless Steel

    Black Oxide Stainless Steel Machine Screw Nuts

    Machine Screw Nuts in Black Oxide 18-8 Stainless Steel

    Hex Finish Nuts for Diameters Under - 1/4"

    A machine nut is used with machine screws to connect materials together mechanically. This type of nut is used with smaller machine screw sizes under 1/4". Hex Machine nuts are used for many fastening applications. Machine screw nuts are often used with hex cap screws, socket screws, and bolts.

    Small Diameter Machine Screw Nuts

    A machine screw small pattern nut (micro) is used with machine screws to connect materials together in small tight areas mechanically. Small Pattern Machine Screw Nuts have a smaller outside diameter than standard Machine Screw Nuts. For example, a #0-80 Machine Screw Nut has 5/32 (0.15625) inch flats, whereas a #0-80 Small Pattern Machine Screw Nut has 1/8 (0.125) inch flats.


    18-8 stainless steel is suitable for many general purpose applications, especially freshwater and non-salt water wet environments. Corrosion-resistant and durable, 18-8 stainless steel is equivalent to the A2 grade of stainless steel.

    Black oxide fasteners are stainless steel fasteners that have been chemically treated to alter certain qualities of the material, most notably the color. The treatment adds a mild corrosion and abrasion resistance and reduces the now black oxide stainless steel fasteners reflective properties.


    FAQs

    Do machine screws need nuts?

    Machine screws typically only need nuts if the hole they are being fastened into isn't tapped or the screw goes through completely, leaving the end sticking out on the other side. Even in the latter scenario, a nut is not always needed but is usually recommended. Ultimately, it depends on the application. We recommend using nuts where applicable since they can help secure your application better than the screw alone.

    What is a screw nut?

    A screw nut is a type of mating fastener to bolts. It has a threaded hole, which fastens multiple parts together when used with a bolt or machine screw. These two parts are kept together through friction and compression.

    What is a machine screw nut?

    Machine screw nuts are finish nuts designed for use with smaller (under 1/4 inch) diameter bolts. They are most often used with machine screws.

    What does 18-8 mean?

    In regards to stainless steel, 18-8 (sometimes written as 18/8) is the composition of chromium (18%) and nickel (8%) in the stainless steel alloy. 18-8 also refers to the 300 series of stainless steel grades, including 302, 303, 304, & 316. Though you'll often find it used interchangeably with the 304 grade because it's the best known stainless grade in the series.

    Can I use stainless steel machine screws with nuts of a different metal?

    Depends on the material. Some materials, such as zinc plated steel, are safe to mix with stainless steel. However, aluminum is not safe to use because it risks galvanic corrosion of the materials. We recommend keeping like-metals together in applications.

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