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    70 Products

    Heavy-Vibration-Resistant Spring Lock Washers
    3D CAD models available

    Image of Product. Front orientation. Lock Washers. Spring Lock Washer, Conical Washer.
    With a grip that's second only to wedge lock, these washers stop nuts and screws from wiggling loose under constant, vigorous vibration. They are ideal for engines, turbines, generators, and other heavy duty equipment. 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.
    Black-Oxide 18-8 Stainless Steel—Typically chosen for their appearance, these washers have a dark, matte coating to create a finished look. They won't rust in wet and outdoor environments, but can't hold up to harsh chemicals as well as 316 stainless steel.
    Super-Corrosion-Resistant 316 Stainless Steel—Superior to 18-8 stainless steel, these washers won't degrade when exposed to harsh weather, salt water, and most chemicals.
    High-Strength 17-7 PH Stainless Steel—The strongest stainless steel washers we offer, these are comparable to high-strength Grade 8 steel. They won’t rust in wet and outdoor environments, but they can’t handle the harsh chemicals that 316 stainless steel can.
    Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.
    Phosphate-Coated Steel—Paint adheres evenly to the surface of these washers, so you can add your own decorative finish. They are more durable than zinc-plated steel washers to withstand wet and outdoor environments. However, they won't hold up to the harsh chemicals that stainless steel can.
    Steel—Best for dry environments since moisture will cause these washers to rust.
    For Screw
    Size
    ID,
    mm
    OD,
    mm
    Thk.,
    mm
    Overall
    Ht., mm
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    M2
    2.25.00.40.60DIN 679650000000000000000
    M2.5
    2.76.00.50.70DIN 6796100000000000000
    M3
    3.27.00.60.90DIN 67961000000000000000
    M4
    4.39.01.01.30DIN 6796250000000000000
    M5
    5.311.01.21.60DIN 67962500000000000000
    M6
    6.414.01.52.00DIN 6796250000000000000
    M8
    8.418.02.02.60DIN 6796100000000000000
    M10
    10.523.02.53.20DIN 6796100000000000000
    M12
    13.029.03.04.00DIN 6796100000000000000
    M14
    15.035.03.54.70DIN 679610000000000000
    M16
    17.039.04.05.30DIN 679610000000000000
    M18
    19.042.04.55.80DIN 6796100000000000000
    M20
    21.045.05.06.40DIN 6796100000000000000
     
    Black-Oxide 18-8 Stainless Steel
    M6
    6.414.01.52.00DIN 679650000000000000
    M8
    8.418.02.02.60DIN 679650000000000000
    M10
    10.523.02.53.20DIN 6796500000000000000
    M12
    13.029.03.03.95DIN 6796500000000000000
    M16
    17.039.04.05.25DIN 6796100000000000000
     
    Super-Corrosion-Resistant 316 Stainless Steel
    M2
    2.25.00.40.60DIN 67962500000000000000
    M3
    3.27.00.60.90DIN 67962500000000000000
    M4
    4.39.01.01.30DIN 6796100000000000000
    M5
    5.311.01.21.60DIN 67961000000000000000
    M6
    6.414.01.52.00DIN 67961000000000000000
    M8
    8.418.02.02.60DIN 6796500000000000000
    M10
    10.523.02.53.20DIN 679610000000000000
    M12
    13.029.03.04.00DIN 679610000000000000
    M14
    15.035.03.54.70DIN 6796100000000000000
    M16
    17.039.04.05.30DIN 6796100000000000000
    M20
    21.045.05.06.40DIN 6796100000000000000
     
    High-Strength 17-7 PH Stainless Steel
    M4
    4.39.01.01.30DIN 6796500000000000000
    M5
    5.311.01.21.55DIN 6796500000000000000
     
    Zinc-Plated Steel
    M2
    2.25.00.40.60DIN 679610000000000000000
    M3
    3.27.00.60.90DIN 679610000000000000000
    M4
    4.39.01.01.30DIN 679610000000000000000
    M5
    5.311.01.21.60DIN 6796500000000000000
    M6
    6.414.01.52.00DIN 6796250000000000000
    M8
    8.418.02.02.60DIN 6796250000000000000
    M10
    10.523.02.53.20DIN 67961000000000000000
    M12
    13.029.03.04.00DIN 6796500000000000000
    M14
    15.035.03.44.30DIN 6796100000000000000
    M16
    16.439.03.95.30DIN 6796500000000000000
    M18
    19.042.04.55.80DIN 6796100000000000000
    M20
    21.045.05.06.40DIN 6796100000000000000
    M24
    25.056.06.07.75DIN 6796100000000000000
     
    Phosphate-Coated Steel
    M2
    2.25.00.40.60DIN 679610000000000000000
    M3
    3.27.00.60.85DIN 679610000000000000000
    M4
    4.39.01.01.30DIN 679610000000000000000
    M5
    5.311.01.21.55DIN 679610000000000000000
    M6
    6.414.01.52.00DIN 67965000000000000000
    M8
    8.418.02.02.60DIN 67965000000000000000
    M10
    10.523.02.53.20DIN 67961000000000000000
    M12
    13.029.03.03.95DIN 67961000000000000000
    M14
    15.035.03.54.65DIN 6796300000000000000
    M16
    17.039.04.05.25DIN 6796300000000000000
    M18
    19.042.04.55.80DIN 6796200000000000000
    M20
    21.045.05.06.40DIN 6796100000000000000
    M24
    25.056.06.07.75DIN 6796100000000000000
     
    Steel
    M2
    2.25.00.40.60DIN 67961000000000000000
    M3
    3.27.00.60.90DIN 67961000000000000000
    M4
    4.39.01.01.30DIN 67961000000000000000
    M5
    5.311.01.21.60DIN 679610000000000000000
    M6
    6.414.01.52.00DIN 6796500000000000000
    M8
    8.418.02.02.60DIN 6796250000000000000
    M10
    10.523.02.53.20DIN 6796100000000000000
    M12
    13.029.03.04.00DIN 67961000000000000000
    M14
    15.035.03.44.30DIN 67961000000000000000
    M16
    16.439.03.95.30DIN 6796500000000000000
    M18
    19.042.04.55.80DIN 679610000000000000
    M20
    21.045.05.06.40DIN 679610000000000000
    M24
    25.056.06.07.75DIN 6796100000000000000
     
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