McMaster-Carr logo
    Filter by
    System of Measurement
    Screw Size
    Industrial Info Compare
    Washer Type
    Thickness
    Attribute Image
    Serration Location
    Material
    For Use With
    DFARS Specialty Metals
    Industrial Info Compare
    Export Control Classification Number (ECCN)
    Overall Height
    Attribute Image
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Comments
    E-mail address (if you would like a response)
    2 Products

    Heavy-Vibration-Resistant Spring Lock Washers for Socket Head Screws

    Image of Product. Front orientation. Lock Washers. Conical Washer, For Socket Head Screws, Spring Lock Washer.
    Stop socket head screws from wiggling loose on equipment with constant, vigorous vibration, such as engines, turbines, and generators. These washers have a small diameter to fit under screws with narrow heads. Similar to a spring, they flatten under pressure to add tension between mating surfaces. As long as the washers aren't deformed or otherwise damaged, you can reuse them indefinitely without losing locking strength. Also known as conical washers and Belleville washers.
    Stack multiple washers in the same direction to double or triple how much weight they can bear. Stack washers in opposite directions for better deflection, which means they compress further and withstand more shock and movement without loosening.
    Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.
    Steel—Best for dry environments since moisture will cause these washers to rust.
    Top-and-Bottom Serration—Adds friction for extra gripping power.
    For Screw
    Size
    ID
    OD
    Thk.
    Overall
    Ht.
    Serration
    Location
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Steel
    9/16", M140.591"0.866"0.043"0.079"Top and Bottom25000000000000000
     
    Steel
    1/2", M120.539"0.748"0.043"0.071"Top and Bottom5000000000000000
     
    back to top