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    9 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.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these washers won't rust when exposed to moisture. However, they can't hold up to the harsh chemicals that 316 stainless steel can.
    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.
    18-8 Stainless Steel
    M6
    0.252"0.394"0.024"0.047"Top and Bottom1000000000000000
     
    Zinc-Plated Steel
    No. 10, M50.209"0.354"0.024"0.043"Top and Bottom10000000000000000
    1/4", M60.264"0.374"0.024"0.047"Top and Bottom5000000000000000
     
    Steel
    No. 10, M50.209"0.354"0.024"0.043"Top and Bottom1000000000000000
    M6
    0.252"0.394"0.024"0.047"Top and Bottom10000000000000000
     

    Shims for Keyed Shafts

    With a notch or tab, these shims fit snugly on keyed shafts to align and space gears, sprockets, and bearings. On keyed arbors, they’re often used to accurately space saw blades and cutters.
    You can stack multiple shims to achieve your exact thickness, but stacking more than four may cause them to shift. Remember, fewer shims are better, so a couple of thicker shims are more stable than a bunch of thin shims.
    Notch
    Image of Product. Front orientation. Shims. For Keyed Shafts, Sold Individually, Round, Notch.
    Fit these shims around keyed shafts and arbors that have a key inserted. They’re often referred to as arbor spacers.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these shims resist rust. However, they’ll corrode or pit when exposed to salt water and chemicals.
    Notch
    Thk.
    Thk. Tolerance
    ID
    ID
    Tolerance
    OD
    OD Tolerance
    Wd.
    Dp.
    Min.
    Hardness
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
     
    For 1" Diameter Shafts
    0.024"-0.0025" to 0.0025"1"0" to 0.011"1 1/2"-0.002" to 0.002"1/4"3/32"Rockwell B8010000000000000000
     
    For 1 1/4" Diameter Shafts
    0.024"-0.0025" to 0.0025"1 1/4"0" to 0.011"1 3/4"-0.002" to 0.002"5/16"1/8"Rockwell B80500000000000000
     
    For 1 1/2" Diameter Shafts
    0.024"-0.0025" to 0.0025"1 1/2"0" to 0.011"2 1/8"-0.002" to 0.002"3/8"5/32"Rockwell B80500000000000000
     
    For 2" Diameter Shafts
    0.024"-0.0025" to 0.0025"2"0" to 0.011"2 3/4"-0.002" to 0.002"1/2"3/16"Rockwell B8010000000000000
     
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