McMaster-Carr logo
    Filter by
    Product Family
    System of Measurement
    Nut Type
    Industrial Info Compare
    Locking Type
    Thread Type
    Industrial Info Compare
    Hex Nut Profile
    Thread Spacing
    Industrial Info Compare
    Insert Maximum Temperature
    Sold As
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    DFARS Specialty Metals
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    Industrial Info Snippet
    Forward
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Print
    How can we improve?
    Comments
    E-mail address (if you would like a response)
    11 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"1852592092A02500000
    10-32
    		3/8"15/64"1852592092A02700000
    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
     
    back to top