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    • Metric K-Lock Nuts - A2 Stainless Steel







  • Keps K Lock Nuts Metric A2 Stainless Steel

    Keps K Lock Nuts Metric A2 Stainless Steel

    Metric Keps K Lock Nuts in A2 Stainless Steel

    Hex Nuts with an Attached Free-Spinning Washer

    A Keps K-lock nut is a nut with an attached or captive, free-spinning washer. They may also be referred to as Keps Nuts, k-lock nuts, star nuts, or captive lock washer nuts. They are used to make an assembly more convenient as they combine both a hex nut and a lock washer into a single fastener.

    K Lock Nuts Feature a conical external tooth washer attached to the bottom of the nut. This integrated lock washer bites into the surface material, providing increased breakaway torque and decreased likelihood of the nut loosening.

    Stainless Steel

    The A2 grade of Stainless steel is suitable for many general purpose applications, especially freshwater and non-salt water wet environments. Corrosion-resistant and durable, A2 stainless steel is equivalent to the 18-8 or 304 grade of stainless steel.


    Nut Size Width Across Flats Overall Thickness Washer Diameter
    M3
    5.5mm
    2.85mm
    6.3mm
    M4 7mm 3.65mm 8mm
    M5 8mm 4.6mm 9.2mm
    M6 10mm 5.6mm 11mm
    M8 13mm 7.3mm 14.9mm
    M10 17mm 8.9mm 19mm

    FAQs

    How do K nuts work?

    Keps K lock nuts are standard hex nuts with a free-spinning captive serrated washer attached. This washer bites into the surface material to help the nut resist vibration. Keps nuts effectively combine hex nuts with external tooth lock washers into a single fastener for ease of use.

    What is the main difference between a KEPS nut and a Nylock nut?

    Keps nuts use a serrated captive washer that's attached to the nut to bite into the surface material to create tension and resist vibration. Nylock nuts use a nylon insert that the screw will cut threads into, creating friction between the screw threads and the nylon to prevent loosening. Both are lock nuts, but their methods of locking are their main difference.

    What are locking nuts for?

    Lock nuts are an easy to use, cost-effective solution to protecting against vibration-related loosening. They're used to protect applications from loosening over time.

    What is stainless steel good for?

    Stainless steel is good for general purpose applications, especially those involving water or freshwater. Suppose you need stainless steel for more corrosive environments, such as marine or salt-water applications. In that case, we recommend the 316 grade of stainless steel.

    Can I use stainless steel nuts with bolts 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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