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    22 Products

    Nylon-Insert Locknuts

    Image of Product. Front orientation. Locknuts. Nylon-Insert Locknuts.
    Versatile yet economical, these are the most commonly used locknuts. The nylon insert grips the screw to prevent loosening from moderate vibration without damaging threads. However, the insert may become brittle if exposed to high temperatures. These locknuts are reusable a handful of times, but the holding power decreases with each use.
    Brass
    Brass—Conductive and nonmagnetic, brass locknuts are typically used to secure electrical equipment, such as circuit board assemblies and mounting brackets inside enclosures. They're also softer than most metals, so they won't damage other fastening components.
    Thread
    Size
    Wd.
    Ht.
    Insert Max.
    Temp., ° F
    Pkg.
    Qty.
    Pkg.
    Brass
    4-40
    		1/4"9/64"1855092092A101000000
    6-32
    		5/16"11/64"1852592092A0210000
    8-32
    		11/32"15/64"1852592092A0230000
    10-24
    		3/8"15/64"1852592092A0250000
    10-32
    		3/8"15/64"1852592092A0270000
    1/4"-20
    		7/16"5/16"1851092092A0290000
    5/16"-18
    		1/2"11/32"1851092092A03000000
    3/8"-16
    		9/16"29/64"185592092A0310000
    1/2"-13
    		3/4"19/32"185192092A0330000
    5/8"-11
    		15/16"3/4"185192092A03500000
    3/4"-10
    		1 1/16"7/8"185192092A03600000
     

    Low-Pressure Brass and Bronze Threaded Pipe Locknuts

    Image of Product. Front orientation. Pipe Locknuts. Low-Pressure Brass and Bronze Threaded Pipe Locknuts.
    Use these locknuts in low-pressure flow applications. They have good corrosion resistance.
    Locknuts thread onto the male end of a fitting to provide extra holding power so the fitting won’t loosen from vibration.
    DIN 431—Locknuts that meet DIN 431 comply with international standards for pipe locknut dimensions.
    Pipe
    Size
    Hex Wd.,
    mm
    Lg.,
    mm
    Max. Pressure
    @ Temp.
    For Use With
    Material
    For Pipe
    Material
    For Flange
    Material
    Specs.
    Met
    Each
    BSPP Female
    1/8
    		196Not RatedAir, Natural Gas, OilBrassBrassBrassDIN 4313538N1100000
    1/4
    		226Not RatedAir, Natural Gas, OilBrassBrassBrassDIN 4313538N120000
    3/8
    		277Not RatedAir, Natural Gas, OilBrassBrassBrassDIN 4313538N130000
    1/2
    		328Not RatedAir, Natural Gas, OilBrassBrassBrassDIN 4313538N140000
    3/4
    		369Not RatedAir, Natural Gas, OilBrassBrassBrassDIN 4313538N150000
    1
    		4610Not RatedAir, Natural Gas, OilBrassBrassBrassDIN 4313538N1600000
    1 1/4
    		5511Not RatedAir, Natural Gas, OilBrassBrassBrassDIN 4313538N1700000
    1 1/2
    		6012Not RatedAir, Natural Gas, OilBrassBrassBrassDIN 4313538N1800000
     

    Serrated Flange Nuts

    Image of Product. Bottom orientation. Flange Nuts. Serrated Flange Nuts.
    Serrations bite into material for mild vibration resistance while the flange eliminates the need for a separate washer. These nuts are ideal for securing screws in oversized or irregularly shaped holes since the flange covers a larger area than standard nuts. You can use them again and again without sacrificing strength. However, the serrations may mar the surface of your material. Also known as collar nuts.
    Brass
    Brass—Conductive and nonmagnetic, brass nuts are commonly used to secure electrical equipment, such as circuit board assemblies and mounting brackets, inside enclosures. They're also softer than most metals, so they won't damage other fastening components.
    Flange
    Thread
    Size
    Wd.
    Ht.
    Dia.
    Thk.
    Pkg.
    Qty.
    Pkg.
    Brass
    1/4"-20
    		7/16"15/64"19/32"0.04"593051A110000000
    5/16"-18
    		1/2"9/32"43/64"0.04"593051A12000000
    3/8"-16
    		9/16"11/32"3/4"0.04"593051A13000000
     
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