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    358 Products

    Heavy-Vibration-Resistant Spring Lock Washers

    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.
    Acetal—Lightweight, conductive, and naturally rust resistant. These washers won't swell or lose their strength if exposed to moisture.
    Top Serration—Adds friction for extra gripping power.
    DIN 432—These washers have a small tab that presses up against the flats of your nut or screw for extra security.
    For Screw
    Size
    ID
    OD
    Thk.
    Overall
    Ht.
    Serration
    Location
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    1/4"
    0.260"0.683"0.048" to 0.052"0.090"1000000000000000
    5/16"
    0.324"0.807"0.060" to 0.064"0.100"100000000000000
    3/8"
    0.389"0.930"0.070" to 0.076"0.112"100000000000000
    1/2"
    0.519"1.179"0.091" to 0.100"0.152"50000000000000
    5/8"
    0.644"1.500"0.130" to 0.140"0.177"10000000000000
    3/4"
    0.773"1.750"0.130" to 0.140"0.195"10000000000000
    M2
    2.2 mm5.0 mm0.4 mm0.6 mmDIN 67965000000000000000
    M2.5
    2.7 mm6.0 mm0.5 mm0.7 mmDIN 6796100000000000000
    M3
    3.2 mm7.0 mm0.6 mm0.9 mmDIN 67961000000000000000
    M4
    4.3 mm9.0 mm1.0 mm1.3 mmDIN 6796250000000000000
    M5
    5.3 mm11.0 mm1.2 mm1.6 mmDIN 67962500000000000000
    M6
    6.2 mm14.3 mm1.0 mm1.8 mm1000000000000000
    M6
    6.4 mm14.0 mm1.5 mm2.0 mmDIN 6796250000000000000
    M8
    8.4 mm18.0 mm2.0 mm2.6 mmDIN 6796100000000000000
    M10
    10.2 mm20.7 mm1.5 mm2.3 mm1000000000000000
    M10
    10.5 mm23.0 mm2.5 mm3.2 mmDIN 6796100000000000000
    M12
    13.0 mm29.0 mm3.0 mm4.0 mmDIN 6796100000000000000
    M14
    15.0 mm35.0 mm3.5 mm4.7 mmDIN 679610000000000000
    M16
    17.0 mm39.0 mm4.0 mm5.3 mmDIN 679610000000000000
    M18
    19.0 mm42.0 mm4.5 mm5.8 mmDIN 6796100000000000000
    M20
    21.0 mm45.0 mm5.0 mm6.4 mmDIN 6796100000000000000
     
    Black-Oxide 18-8 Stainless Steel
    M3
    3.2 mm8.0 mm0.5 mm0.7 mm100000000000000
    M4
    4.2 mm10.0 mm0.5 mm0.8 mm100000000000000
    M5
    5.2 mm10.0 mm0.5 mm0.8 mm100000000000000
    M6
    6.2 mm12.0 mm0.5 mm0.9 mm100000000000000
    M6
    6.4 mm14.0 mm1.5 mm2.0 mmDIN 679650000000000000
    M7
    7.2 mm14.0 mm0.5 mm0.9 mm50000000000000
    M8
    8.2 mm16.0 mm0.6 mm1.1 mm50000000000000
    M8
    8.4 mm18.0 mm2.0 mm2.6 mmDIN 679650000000000000
    M10
    10.5 mm23.0 mm2.5 mm3.2 mmDIN 6796500000000000000
    M12
    13.0 mm29.0 mm3.0 mm4.0 mmDIN 6796500000000000000
    M16
    17.0 mm39.0 mm4.0 mm5.3 mmDIN 6796100000000000000
     
    Super-Corrosion-Resistant 316 Stainless Steel
    M2
    2.2 mm5.0 mm0.4 mm0.6 mmDIN 67962500000000000000
    M3
    3.2 mm7.0 mm0.6 mm0.9 mmDIN 67962500000000000000
    M4
    4.3 mm9.0 mm1.0 mm1.3 mmDIN 6796100000000000000
    M4
    4.3 mm14.0 mm0.4 mm2.0 mmDIN 4325000000000000000
    M5
    5.3 mm11.0 mm1.2 mm1.6 mmDIN 67961000000000000000
    M5
    5.3 mm17.0 mm0.8 mm2.5 mmDIN 4322500000000000000
    M6
    6.4 mm14.0 mm1.5 mm2.0 mmDIN 67961000000000000000
    M6
    6.4 mm19.0 mm0.8 mm3.0 mmDIN 4322500000000000000
    M8
    8.4 mm18.0 mm2.0 mm2.6 mmDIN 6796500000000000000
    M8
    8.4 mm22.0 mm1.0 mm4.0 mmDIN 4321000000000000000
    M10
    10.5 mm23.0 mm2.5 mm3.2 mmDIN 679610000000000000
    M10
    10.5 mm26.0 mm1.0 mm4.0 mmDIN 4321000000000000000
    M12
    13.0 mm29.0 mm3.0 mm4.0 mmDIN 679610000000000000
    M12
    13.0 mm30.0 mm1.2 mm4.5 mmDIN 4321000000000000000
    M14
    15.0 mm33.0 mm1.2 mm4.5 mmDIN 432500000000000000
    M14
    15.0 mm35.0 mm3.5 mm4.7 mmDIN 6796100000000000000
    M16
    17.0 mm36.0 mm1.2 mm4.5 mmDIN 432500000000000000
    M16
    17.0 mm39.0 mm4.0 mm5.3 mmDIN 6796100000000000000
    M20
    21.0 mm42.0 mm1.6 mm4.5 mmDIN 43210000000000000
    M20
    21.0 mm45.0 mm5.0 mm6.4 mmDIN 6796100000000000000
    M22
    23.0 mm50.0 mm1.6 mm6.5 mmDIN 43210000000000000
    M24
    25.0 mm50.0 mm1.6 mm6.5 mmDIN 43210000000000000
    M27
    28.0 mm58.0 mm1.6 mm9.5 mmDIN 432100000000000000
    M30
    31.0 mm63.0 mm1.6 mm9.5 mmDIN 43210000000000000
     
    High-Strength 17-7 PH Stainless Steel
    No. 6
    0.143"0.341"0.023" to 0.027"0.042"5000000000000000
    No. 8
    0.169"0.403"0.029" to 0.033"0.050"5000000000000000
    No. 10
    0.197"0.465"0.033" to 0.037"0.057"250000000000000
    1/4"
    0.252"0.551"0.048" to 0.052"0.067"250000000000000
    5/16"
    0.331"0.709"0.074" to 0.082"0.102"100000000000000
    3/8"
    0.413"0.906"0.074" to 0.082"0.106"100000000000000
    1/2"
    0.512"1.142"0.093" to 0.103"0.130"500000000000000
    5/8"
    0.669"1.535"0.131" to 0.145"0.185"10000000000000
    M3
    3.2 mm7.0 mm0.6 mm0.9 mm1000000000000000
    M4
    4.2 mm8.0 mm0.4 mm0.8 mm2500000000000000
    M4
    4.2 mm9.0 mm0.9 mm1.3 mm1000000000000000
    M4
    4.3 mm9.0 mm1.0 mm1.3 mmDIN 6796500000000000000
    M5
    5.2 mm11.9 mm0.8 mm1.4 mm50000000000000
    M5
    5.3 mm11.0 mm0.9 mm1.4 mm1000000000000000
    M5
    5.3 mm11.0 mm1.2 mm1.6 mmDIN 6796500000000000000
    M6
    6.2 mm13.9 mm1.0 mm1.8 mm100000000000000
    M12
    12.3 mm23.8 mm1.8 mm2.7 mm10000000000000
    M16
    16.1 mm38.7 mm3.8 mm5.7 mm10000000000000
     
    Zinc-Plated Steel
    No. 6
    0.142"0.362"0.025" to 0.031"0.047"Top500000000000000
    No. 8
    0.161"0.402"0.036" to 0.042"0.059"Top100000000000000
    No. 10
    0.201"0.481"0.047" to 0.053"0.073"Top100000000000000
    1/4"
    0.254"0.559"0.049" to 0.055"0.087"Top500000000000000
    5/16"
    0.323"0.717"0.052" to 0.058"0.095"Top250000000000000
    3/8"
    0.402"0.877"0.059" to 0.065"0.108"Top250000000000000
    7/16"
    0.489"1.074"0.075" to 0.082"0.120"Top100000000000000
    5/8"
    0.646"1.273"0.095" to 0.101"0.156"Top500000000000000
    3/4"
    0.773"1.750"0.127" to 0.141"0.171"500000000000000
    7/8"
    0.901"2.000"0.146" to 0.162"0.196"10000000000000
    1"
    1.030"2.250"0.163" to 0.181"0.219"10000000000000
    1 1/8"
    1.155"2.500"0.182" to 0.202"0.243"100000000000000
    1 1/4"
    1.280"2.750"0.200" to 0.222"0.267"100000000000000
    1 3/8"
    1.405"3.000"0.219" to 0.243"0.292"100000000000000
    1 1/2"
    1.530"3.250"0.238" to 0.263"0.315"100000000000000
    M2
    2.2 mm5.0 mm0.4 mm0.6 mmDIN 679610000000000000000
    M3
    3.2 mm7.0 mm0.6 mm0.9 mmDIN 679610000000000000000
    M4
    4.3 mm9.0 mm1.0 mm1.3 mmDIN 679610000000000000000
    M5
    5.3 mm11.0 mm1.2 mm1.6 mmDIN 6796500000000000000
    M6
    6.2 mm14.3 mm1.1 mm1.7 mm2500000000000000
    M6
    6.4 mm14.0 mm1.5 mm2.0 mmDIN 6796250000000000000
    M8
    8.4 mm18.0 mm2.0 mm2.4 mm100000000000000
    M8
    8.4 mm18.0 mm2.0 mm2.6 mmDIN 6796250000000000000
    M10
    10.3 mm20.5 mm1.5 mm2.6 mm100000000000000
    M10
    10.3 mm26.9 mm2.0 mm3.7 mm1000000000000000
    M10
    10.5 mm23.0 mm2.5 mm3.2 mmDIN 67961000000000000000
    M12
    13.0 mm29.0 mm3.0 mm4.0 mmDIN 6796500000000000000
    M14
    15.0 mm35.0 mm3.4 mm4.3 mmDIN 6796100000000000000
    M16
    16.4 mm39.0 mm3.9 mm5.3 mmDIN 6796500000000000000
    M18
    19.0 mm42.0 mm4.5 mm5.8 mmDIN 6796100000000000000
    M20
    20.5 mm44.5 mm3.3 mm4.3 mm10000000000000
    M20
    21.0 mm45.0 mm5.0 mm6.4 mmDIN 6796100000000000000
    M24
    25.0 mm56.0 mm6.0 mm7.8 mmDIN 6796100000000000000
     
    Phosphate-Coated Steel
    M2
    2.2 mm5.0 mm0.4 mm0.6 mmDIN 679610000000000000000
    M3
    3.2 mm7.0 mm0.6 mm0.9 mmDIN 679610000000000000000
    M4
    4.3 mm9.0 mm1.0 mm1.3 mmDIN 679610000000000000000
    M5
    5.3 mm11.0 mm1.2 mm1.6 mmDIN 679610000000000000000
    M6
    6.4 mm14.0 mm1.5 mm2.0 mmDIN 67965000000000000000
    M8
    8.4 mm18.0 mm2.0 mm2.6 mmDIN 67965000000000000000
    M10
    10.5 mm23.0 mm2.5 mm3.2 mmDIN 67961000000000000000
    M12
    13.0 mm29.0 mm3.0 mm4.0 mmDIN 67961000000000000000
    M14
    15.0 mm35.0 mm3.5 mm4.7 mmDIN 6796300000000000000
    M16
    17.0 mm39.0 mm4.0 mm5.3 mmDIN 6796300000000000000
    M18
    19.0 mm42.0 mm4.5 mm5.8 mmDIN 6796200000000000000
    M20
    21.0 mm45.0 mm5.0 mm6.4 mmDIN 6796100000000000000
    M24
    25.0 mm56.0 mm6.0 mm7.8 mmDIN 6796100000000000000
     
    Steel
    No. 6
    0.142"0.362"0.025" to 0.031"0.047"Top10000000000000000
    No. 8
    0.161"0.402"0.036" to 0.042"0.059"Top10000000000000000
    No. 10
    0.201"0.481"0.047" to 0.053"0.073"Top500000000000000
    1/4"
    0.254"0.559"0.049" to 0.055"0.087"Top500000000000000
    5/16"
    0.323"0.717"0.052" to 0.058"0.095"Top5000000000000000
    3/8"
    0.402"0.877"0.059" to 0.065"0.108"Top2500000000000000
    7/16"
    0.489"1.074"0.075" to 0.081"0.120"Top100000000000000
    1/2"
    0.512"1.074"0.075" to 0.081"0.120"Top100000000000000
    5/8"
    0.646"1.273"0.095" to 0.101"0.156"Top50000000000000
    M2
    2.2 mm5.0 mm0.4 mm0.6 mmDIN 67961000000000000000
    M3
    3.2 mm7.0 mm0.6 mm0.9 mmDIN 67961000000000000000
    M4
    4.3 mm9.0 mm1.0 mm1.3 mmDIN 67961000000000000000
    M4
    4.3 mm14.0 mm0.4 mm2.0 mmDIN 4321000000000000000
    M5
    5.3 mm11.0 mm1.2 mm1.6 mmDIN 679610000000000000000
    M5
    5.3 mm17.0 mm0.8 mm2.5 mmDIN 4321000000000000000
    M6
    6.4 mm14.0 mm1.5 mm2.0 mmDIN 6796500000000000000
    M6
    6.4 mm19.0 mm0.8 mm3.0 mmDIN 43250000000000000
    M8
    8.4 mm18.0 mm2.0 mm2.6 mmDIN 6796250000000000000
    M8
    8.4 mm22.0 mm1.0 mm4.0 mmDIN 43250000000000000
    M10
    10.5 mm23.0 mm2.5 mm3.2 mmDIN 6796100000000000000
    M10
    10.5 mm26.0 mm1.0 mm4.0 mmDIN 43250000000000000
    M12
    13.0 mm29.0 mm3.0 mm4.0 mmDIN 67961000000000000000
    M12
    13.0 mm30.0 mm1.2 mm4.5 mmDIN 432500000000000000
    M14
    15.0 mm33.0 mm1.2 mm4.5 mmDIN 43210000000000000
    M14
    15.0 mm35.0 mm3.4 mm4.3 mmDIN 67961000000000000000
    M16
    16.4 mm39.0 mm3.9 mm5.3 mmDIN 6796500000000000000
    M16
    17.0 mm36.0 mm1.2 mm4.5 mmDIN 43210000000000000
    M18
    19.0 mm42.0 mm4.5 mm5.8 mmDIN 679610000000000000
    M20
    21.0 mm42.0 mm1.6 mm4.5 mmDIN 43210000000000000
    M20
    21.0 mm45.0 mm5.0 mm6.4 mmDIN 679610000000000000
    M24
    25.0 mm50.0 mm1.6 mm6.5 mmDIN 43210000000000000
    M24
    25.0 mm56.0 mm6.0 mm7.8 mmDIN 6796100000000000000
    M30
    31.0 mm63.0 mm1.6 mm9.5 mmDIN 43210000000000000
     
    Acetal
    No. 6, M3.50.152"0.316"0.022" to 0.032"0.045"100000000000000
    No. 8, M40.173"0.297"0.023" to 0.033"0.046"100000000000000
    No. 10, M50.204"0.365"0.025" to 0.035"0.053"100000000000000
    No. 10, M50.235"0.416"0.030" to 0.040"0.062"100000000000000
    1/4", M60.264"0.564"0.033" to 0.043"0.066"100000000000000
    1/4", M60.276"0.448"0.030" to 0.040"0.062"100000000000000
    5/16", M80.328"0.660"0.043" to 0.053"0.080"100000000000000
    3/8", M100.451"0.848"0.034" to 0.044"0.080"25000000000000
    3/8", M100.451"0.848"0.050" to 0.060"0.095"2500000000000
     

    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
    No. 5, M30.126"0.217"0.020"0.037"Top and Bottom50000000000000000
    No. 6, M3.50.146"0.236"0.028"0.045"Top and Bottom5000000000000000
    No. 8, M40.169"0.276"0.028"0.047"Top and Bottom5000000000000000
    No. 10, M50.209"0.354"0.028"0.047"Top and Bottom2500000000000000
    1/4", M60.264"0.374"0.028"0.047"Top and Bottom100000000000000
    5/16", M80.331"0.512"0.039"0.063"Top and Bottom100000000000000
    3/8", M100.413"0.630"0.039"0.063"Top and Bottom50000000000000
    7/16", M110.457"0.626"0.051"0.073"Top and Bottom50000000000000
    1/2", M120.539"0.748"0.051"0.073"Top and Bottom500000000000000
    9/16", M140.591"0.866"0.059"0.091"Top and Bottom10000000000000
    5/8", M160.669"0.945"0.059"0.091"Top and Bottom10000000000000
    3/4", M190.787"1.181"0.071"0.102"Top and Bottom10000000000000
    7/8", M220.906"1.299"0.071"0.118"Top and Bottom10000000000000
    1", M251.063"1.496"0.098"0.142"Top and Bottom100000000000000
    1 1/8", M301.244"1.772"0.098"0.161"Top and Bottom100000000000000
    1 3/8", M361.496"2.126"0.118"0.185"Top and Bottom100000000000000
    M1.6
    0.067"0.126"0.020"0.030"Top and Bottom5000000000000000
    M2
    0.087"0.157"0.014"0.024"Top and Bottom5000000000000000
    M2.5
    0.106"0.189"0.018"0.035"Top and Bottom5000000000000000
    M3
    0.126"0.217"0.018"0.035"Top and Bottom5000000000000000
    M4
    0.169"0.278"0.020"0.039"Top and Bottom5000000000000000
    M6
    0.252"0.394"0.024"0.047"Top and Bottom100000000000000
    M7
    0.291"0.472"0.028"0.051"Top and Bottom500000000000000
    M8
    0.331"0.512"0.028"0.055"Top and Bottom1000000000000000
    M10
    0.413"0.630"0.035"0.063"Top and Bottom500000000000000
    M18
    0.748"1.063"0.059"0.091"Top and Bottom10000000000000
    M20
    0.827"1.181"0.059"0.098"Top and Bottom10000000000000
     
    Zinc-Plated Steel
    No. 4
    0.126"0.217"0.020"0.037"Top and Bottom10000000000000000
    No. 5, M30.126"0.217"0.018"0.035"Top and Bottom1000000000000000
    No. 6, M3.50.146"0.236"0.020"0.035"Top and Bottom10000000000000000
    No. 8, M40.169"0.276"0.020"0.039"Top and Bottom10000000000000000
    No. 10, M50.209"0.354"0.024"0.043"Top and Bottom10000000000000000
    No. 12
    0.252"0.394"0.028"0.047"Top and Bottom5000000000000000
    1/4", M60.264"0.374"0.024"0.047"Top and Bottom5000000000000000
    5/16", M80.331"0.512"0.028"0.055"Top and Bottom5000000000000000
    3/8", M100.413"0.630"0.035"0.063"Top and Bottom250000000000000
    7/16", M110.457"0.626"0.035"0.063"Top and Bottom250000000000000
    1/2", M120.539"0.748"0.039"0.071"Top and Bottom250000000000000
    9/16", M140.591"0.866"0.043"0.079"Top and Bottom2500000000000000
    5/8", M160.669"0.945"0.047"0.083"Top and Bottom2500000000000000
    3/4", M190.787"1.181"0.055"0.098"Top and Bottom1000000000000000
    7/8", M220.906"1.299"0.055"0.106"Top and Bottom500000000000000
    1", M251.063"1.496"0.071"0.122"Top and Bottom500000000000000
    1 1/16", M271.126"1.535"0.071"0.122"Top and Bottom500000000000000
    1 1/8", M301.244"1.772"0.071"0.142"Top and Bottom500000000000000
    1 3/8", M361.496"2.126"0.098"0.165"Top and Bottom10000000000000
    M1.6
    0.067"0.126"0.014"0.024"Top and Bottom1000000000000000
    M2
    0.087"0.157"0.014"0.024"Top and Bottom1000000000000000
    M2.5
    0.106"0.189"0.018"0.035"Top and Bottom1000000000000000
    M18
    0.748"1.063"0.055"0.091"Top and Bottom1000000000000000
    M20
    0.827"1.181"0.055"0.098"Top and Bottom500000000000000
    M24
    1.008"1.417"0.063"0.114"Top and Bottom500000000000000
     
    Steel
    No. 5, M30.126"0.217"0.018"0.035"Top and Bottom1000000000000000
    No. 6, M3.50.146"0.236"0.018"0.035"Top and Bottom1000000000000000
    No. 8, M40.169"0.276"0.020"0.039"Top and Bottom1000000000000000
    No. 10, M50.209"0.354"0.024"0.043"Top and Bottom1000000000000000
    1/4", M60.264"0.374"0.028"0.047"Top and Bottom10000000000000000
    5/16", M80.331"0.512"0.031"0.055"Top and Bottom10000000000000000
    3/8", M100.413"0.630"0.039"0.063"Top and Bottom10000000000000000
    7/16", M110.457"0.626"0.039"0.063"Top and Bottom10000000000000000
    1/2", M120.539"0.748"0.043"0.071"Top and Bottom5000000000000000
    9/16", M140.591"0.866"0.047"0.079"Top and Bottom5000000000000000
    5/8", M160.669"0.945"0.051"0.083"Top and Bottom5000000000000000
    3/4", M190.787"1.181"0.059"0.098"Top and Bottom2500000000000000
    7/8", M220.906"1.299"0.059"0.106"Top and Bottom2000000000000000
    1", M251.063"1.496"0.079"0.122"Top and Bottom1000000000000000
    1 1/8", M301.244"1.772"0.079"0.142"Top and Bottom500000000000000
    1 3/8", M361.496"2.126"0.098"0.165"Top and Bottom500000000000000
    M1.6
    0.067"0.126"0.014"0.024"Top and Bottom1000000000000000
    M2
    0.087"0.157"0.014"0.024"Top and Bottom1000000000000000
    M2.5
    0.106"0.189"0.018"0.035"Top and Bottom1000000000000000
    M6
    0.252"0.394"0.024"0.047"Top and Bottom10000000000000000
    M12
    0.512"0.709"0.039"0.067"Top and Bottom5000000000000000
    M18
    0.748"1.063"0.059"0.091"Top and Bottom100000000000000
    M20
    0.827"1.181"0.059"0.098"Top and Bottom1000000000000000
    M24
    1.008"1.417"0.063"0.114"Top and Bottom500000000000000
    M27
    1.126"1.535"0.071"0.122"Top and Bottom500000000000000
     

    Extreme-Vibration-Resistant Wedge Lock Washers

    When it's critical to keep bolted assemblies secure, choose these two-piece lock washers with the tightest grip of all. They stop nuts and screws from loosening in heavy machinery that experiences jarring starts and stops, such as compressors and compactors. Serrations on the outside bite into the fastener and mating surfaces, while wedges on the inside lock the two pieces together. When the nut or screw starts to loosen, the wedges drive more tightly together to maintain tension. You can reuse these washers up to fifteen times, as long as the serrations and wedges are not worn down. They are comparable to NORD-LOCK® or Sherex TEC® washers.
    Spring/Wedge Lock
    Image of Product. Bottom orientation. Lock Washers. Wedge-Lock Washer.
    More flexible than standard wedge lock washers to withstand stronger shocks and vibration. They have a cone shape that expands and compresses to maintain tension in the joint, similar to a heavy duty spring.
    Super-Corrosion-Resistant Zinc-Flake-Coated Steel—With 40 times the corrosion resistance of zinc-plated steel, these withstand rust as well as 316 stainless steel. They have been tested to extreme standards, including 1,000 hours of salt spray. They are similar to Magni-coated washers.
    For Screw
    Size
    ID
    OD
    Thk.
    Pkg.
    Qty.
    Pkg.
    Super-Corrosion-Resistant Zinc-Flake-Coated Steel
    5/16", M80.340"0.530"0.080" to 0.090"100000000000000
    5/16", M80.340"0.650"0.080" to 0.090"10000000000000
    3/8"
    0.410"0.650"0.090" to 0.100"10000000000000
    1/2"
    0.530"0.770"0.130" to 0.140"10000000000000
    5/8", M160.670"1.000"0.170" to 0.180"10000000000000
    3/4"
    0.790"1.210"0.210" to 0.220"10000000000000
    M6
    0.260"0.430"0.070" to 0.080"10000000000000
    M10
    0.420"0.650"0.100" to 0.110"10000000000000
    M12
    0.510"0.770"0.13"10000000000000
    M20
    0.840"1.210"0.220" to 0.230"10000000000000
     

    Tab Lock Washers

    Image of Product. Front orientation. Lock Washers. Tab-Lock Washer, 1 Tab.

    1 Tab

    Instead of relying on friction, these washers lock mechanically for more holding power than split and tooth lock washers. Bend the tabs with a wrench to stop both the fastener and washer from rotating. They are often used in applications with moderate vibration, such as motors, mixers, and pumps. These washers are not reusable because the tabs will weaken if you bend them repeatedly.
    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.
    1 Tab—Bend the tab down over the edge of your mounting surface, and bend the side of the washer up against the nut or screw.
    For Screw
    Size
    ID,
    mm
    OD,
    mm
    Thk.,
    mm
    No. of
    Tabs
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    M4
    4.314.00.41DIN 93100000000000000000
    M5
    5.317.00.51DIN 935000000000000000
    M6
    6.419.00.51DIN 935000000000000000
    M8
    8.422.00.81DIN 932500000000000000
    M10
    10.526.00.81DIN 932500000000000000
    M12
    13.030.01.01DIN 93100000000000000
     

    Spring Lock Washers for Slotted Bearing Nuts

    Designed for use with bearing nuts, these lock washers have a conical shape that presses like a spring against bearings, bushings, gears, and pulleys to hold them in place on your threaded shaft or spindle. They also have an inner tab that sits in the shaft or spindle’s keyway to prevent the nut from loosening.
    Steel—Steel washers are strong and flexible.
    Stainless Steel—Stainless steel washers are more corrosion and chemical resistant than steel washers.
    External Tooth—Washers with external teeth grip components using their teeth, in addition to spring tension.
    DIN 462 and DIN 5406—DIN 462 and DIN 5406 washers meet international standards for lock washer dimensions. Pair DIN 462 washers with DIN 1804 bearing nuts, and DIN 5406 washers with DIN 981 bearing nuts.
    Tab
    For Screw
    Size
    ID
    OD
    Thk.
    Wd.
    Dp.
    Overall
    Ht.
    Tooth
    Location
    Hardness
    Specs. Met
    For Bearing Nut
    Specs. Met
    Each
    For Chamfered Nuts
    Image of System. Front orientation. Contains Annotated. For Chamfered Nuts. Spring Lock Washer.
    Image of Attribute. Front orientation. Contains MultipleImages. For Chamfered Nuts.

     
    Steel
    3/8"
    0.406"0.875"0.046"0.120"0.063"0.125"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.200000000000000
    7/16"
    0.484"1.016"0.046"0.120"0.064"0.148"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.20000000000000
    9/16"
    0.601"1.156"0.046"0.120"0.066"0.172"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.20000000000000
    5/8"
    0.679"1.328"0.046"0.120"0.067"0.195"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.20000000000000
    3/4"
    0.801"1.531"0.046"0.176"0.062"0.203"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.20000000000000
    15/16"
    0.989"1.719"0.054"0.176"0.072"0.221"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.20000000000000
    1 1/8"
    1.193"1.922"0.054"0.176"0.093"0.213"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.20000000000000
    1 5/16"
    1.333"2.234"0.067"0.176"0.106"0.217"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.20000000000000
    1 3/8"
    1.396"2.250"0.054"0.176"0.094"0.221"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.20000000000000
    1 1/2"
    1.583"2.469"0.063"0.290"0.095"0.232"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.20000000000000
    1 3/4"
    1.792"2.734"0.063"0.290"0.096"0.224"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.20000000000000
    1 7/8"
    1.992"2.922"0.063"0.290"0.097"0.239"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.20000000000000
    2 1/8"2.182"3.109"0.068"0.290"0.103"0.225"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.20000000000000
    2 3/8"2.400"3.344"0.068"0.290"0.124"0.249"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.20000000000000
    2 1/2"
    2.588"3.578"0.068"0.290"1/8"0.256"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.20000000000000
    2 3/4"
    2.791"3.828"0.068"0.290"1/8"0.256"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.20000000000000
    2 7/8"2.973"4.109"0.077"0.290"0.135"0.274"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.20000000000000
    3 1/8"3.177"4.375"0.077"0.353"0.132"0.267"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.20000000000000
    3 3/8"3.395"4.625"0.077"0.353"0.133"0.298"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.20000000000000
    3 1/2"3.582"4.938"0.100"0.353"0.155"0.329"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.20000000000000
    3 3/4"3.800"5.219"0.100"0.353"0.156"0.329"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.200000000000000
    3 7/8"3.988"5.500"0.100"0.353"0.171"0.344"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.200000000000000
    4 3/8"4.395"6.063"0.132"0.353"0.203"0.401"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.200000000000000
    4 3/4"4.801"6.469"0.132"0.353"0.204"0.400"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.200000000000000
    M10
    10.000 mm21.000 mm1.000 mm3.000 mm1.500 mm3.000 mmExternalNot RatedDIN 5406DIN 9810000000000000
    M12
    12.000 mm25.000 mm1.000 mm3.000 mm1.500 mm3.000 mmExternalNot RatedDIN 5406DIN 9810000000000000
    M15
    15.000 mm28.000 mm1.000 mm4.000 mm1.500 mm2.500 mmExternalNot RatedDIN 5406DIN 9810000000000000
    M17
    17.000 mm32.000 mm1.000 mm4.000 mm1.500 mm3.000 mmExternalNot RatedDIN 5406DIN 9810000000000000
    M20
    20.000 mm36.000 mm1.000 mm4.000 mm1.500 mm3.500 mmExternalNot RatedDIN 5406DIN 9810000000000000
    M25
    25.000 mm42.000 mm1.250 mm5.000 mm2.000 mm3.500 mmExternalNot RatedDIN 5406DIN 9810000000000000
    M30
    30.000 mm49.000 mm1.250 mm5.000 mm2.500 mm4.000 mmExternalNot RatedDIN 5406DIN 9810000000000000
    M35
    35.000 mm57.000 mm1.250 mm6.000 mm2.500 mm4.500 mmExternalNot RatedDIN 5406DIN 9810000000000000
    M40
    40.000 mm62.000 mm1.250 mm6.000 mm2.500 mm4.000 mmExternalNot RatedDIN 5406DIN 9810000000000000
    M45
    45.000 mm69.000 mm1.250 mm6.000 mm2.500 mm4.500 mmExternalNot RatedDIN 5406DIN 9810000000000000
    M50
    50.000 mm74.000 mm1.250 mm6.000 mm2.500 mm4.500 mmExternalNot RatedDIN 5406DIN 9810000000000000
    M55
    55.000 mm81.000 mm1.250 mm8.000 mm2.500 mm4.500 mmExternalNot RatedDIN 5406DIN 9810000000000000
    M60
    60.000 mm86.000 mm1.500 mm8.000 mm2.500 mm4.500 mmExternalNot RatedDIN 5406DIN 9810000000000000
    M65
    65.000 mm92.000 mm1.500 mm8.000 mm2.500 mm4.500 mmExternalNot RatedDIN 5406DIN 9810000000000000
    M70
    70.000 mm98.000 mm1.500 mm8.000 mm3.500 mm4.500 mmExternalNot RatedDIN 5406DIN 9810000000000000
    M75
    75.000 mm104.000 mm1.500 mm8.000 mm3.500 mm5.000 mmExternalNot RatedDIN 5406DIN 9810000000000000
    M80
    80.000 mm112.000 mm1.750 mm10.000 mm3.500 mm5.500 mmExternalNot RatedDIN 5406DIN 9810000000000000
    M85
    85.000 mm119.000 mm1.750 mm10.000 mm3.500 mm5.500 mmExternalNot RatedDIN 5406DIN 9810000000000000
    M90
    90.000 mm126.000 mm1.750 mm10.000 mm3.500 mm6.000 mmExternalNot RatedDIN 5406DIN 98100000000000000
    M95
    95.000 mm133.000 mm1.750 mm10.000 mm3.500 mm6.500 mmExternalNot RatedDIN 5406DIN 98100000000000000
    M100
    100.000 mm142.000 mm1.750 mm12.000 mm3.500 mm7.000 mmExternalNot RatedDIN 5406DIN 9810000000000000
    M105
    105.000 mm145.000 mm1.750 mm12.000 mm4.500 mm6.000 mmExternalNot RatedDIN 5406DIN 9810000000000000
    M110
    110.000 mm154.000 mm1.750 mm12.000 mm4.500 mm6.500 mmExternalNot RatedDIN 5406DIN 98100000000000000
    M115
    115.000 mm159.000 mm2.000 mm12.000 mm4.500 mm7.000 mmExternalNot RatedDIN 5406DIN 98100000000000000
    M120
    120.000 mm164.000 mm2.000 mm14.000 mm5.000 mm8.000 mmExternalNot RatedDIN 5406DIN 98100000000000000
    M125
    125.000 mm170.000 mm2.000 mm14.000 mm5.000 mm7.000 mmExternalNot RatedDIN 5406DIN 98100000000000000
    M130
    130.000 mm175.000 mm2.000 mm14.000 mm5.000 mm8.000 mmExternalNot RatedDIN 5406DIN 98100000000000000
    M135
    135.000 mm185.000 mm2.000 mm14.000 mm5.000 mm8.000 mmExternalNot RatedDIN 5406DIN 98100000000000000
    M140
    140.000 mm192.000 mm2.000 mm16.000 mm5.000 mm9.500 mmExternalNot RatedDIN 5406DIN 98100000000000000
    M145
    145.000 mm202.000 mm2.000 mm16.000 mm5.000 mm9.000 mmExternalNot RatedDIN 5406DIN 98100000000000000
    M150
    150.000 mm205.000 mm2.000 mm16.000 mm5.000 mm10.000 mmExternalNot RatedDIN 5406DIN 98100000000000000
    M160
    160.000 mm217.000 mm2.500 mm18.000 mm6.000 mm10.500 mmExternalNot RatedDIN 5406DIN 981000000000000000
    M170
    170.000 mm232.000 mm2.500 mm18.000 mm6.000 mm11.500 mmExternalNot RatedDIN 5406DIN 981000000000000000
    M180
    180.000 mm242.000 mm2.500 mm20.000 mm6.000 mm11.500 mmExternalNot RatedDIN 5406DIN 981000000000000000
    M220
    220.000 mm292.000 mm3.000 mm24.000 mm7.000 mm13.000 mmExternalNot RatedDIN 5406DIN 981000000000000000
     
    Stainless Steel
    3/8"
    0.406"0.875"0.046"0.120"0.063"0.125"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.20000000000000
    7/16"
    0.484"1.106"0.046"0.120"0.064"0.148"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.20000000000000
    9/16"
    0.601"1.156"0.046"0.120"0.066"0.172"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.20000000000000
    5/8"
    0.679"1.328"0.046"0.120"0.067"0.195"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.20000000000000
    3/4"
    0.801"1.531"0.046"0.176"0.062"0.203"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.20000000000000
    15/16"
    0.989"1.719"0.054"0.176"0.072"0.221"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.20000000000000
    1 1/8"
    1.193"1.922"0.054"0.176"0.093"0.213"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.200000000000000
    1 3/8"
    1.396"2.250"0.054"0.176"0.094"0.221"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.200000000000000
    1 1/2"
    1.583"2.469"0.063"0.290"0.095"0.232"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.200000000000000
    1 3/4"
    1.792"2.734"0.063"0.290"0.096"0.224"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.200000000000000
    1 7/8"
    1.992"2.922"0.063"0.290"0.097"0.239"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.200000000000000
    2 1/8"2.182"3.109"0.068"0.290"0.103"0.225"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.200000000000000
    2 3/8"2.400"3.344"0.068"0.290"0.124"0.249"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.200000000000000
    2 1/2"
    2.588"3.578"0.068"0.290"1/8"0.256"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.200000000000000
    2 3/4"
    2.791"3.828"0.068"0.290"1/8"0.256"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.200000000000000
    2 7/8"2.973"4.109"0.077"0.290"0.135"0.274"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.200000000000000
    3 1/8"3.177"4.375"0.077"0.353"0.132"0.267"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.2000000000000000
    3 3/8"3.395"4.625"0.077"0.353"0.133"0.298"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.2000000000000000
    3 1/2"3.582"4.938"0.100"0.353"0.155"0.329"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.2000000000000000
    3 3/4"3.800"5.219"0.100"0.353"0.156"0.329"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.2000000000000000
    3 7/8"3.988"5.500"0.100"0.353"0.171"0.344"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.2000000000000000
    4 3/8"4.395"6.063"0.132"0.353"0.203"0.401"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.2000000000000000
    4 3/4"4.801"6.469"0.132"0.353"0.204"0.400"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.2000000000000000
     
    For Stepped Nuts
    Image of System. Front orientation. Contains Annotated. For Stepped Nuts. Spring Lock Washer.
    Image of Attribute. Front orientation. Contains MultipleImages. For Stepped Nuts.

     
    Steel
    M8
    8.000 mm20.000 mm0.800 mm3.000 mm2.000 mm2.500 mmNot RatedDIN 462DIN 18040000000000000
    M10
    10.000 mm25.000 mm0.800 mm4.000 mm2.500 mm3.000 mmNot RatedDIN 462DIN 18040000000000000
    M12
    12.000 mm28.000 mm0.800 mm5.000 mm2.500 mm3.000 mmNot RatedDIN 462DIN 18040000000000000
    M14
    14.000 mm30.000 mm0.800 mm5.000 mm2.500 mm3.000 mmNot RatedDIN 462DIN 18040000000000000
    M15
    15.000 mm30.000 mm0.800 mm5.000 mm2.500 mm3.000 mmNot Rated0000000000000
    M16
    16.000 mm32.000 mm1.000 mm5.000 mm2.500 mm3.000 mmNot RatedDIN 462DIN 18040000000000000
    M18
    18.000 mm34.000 mm1.000 mm5.000 mm2.500 mm4.000 mmNot RatedDIN 462DIN 18040000000000000
    M20
    20.000 mm36.000 mm1.000 mm6.000 mm2.500 mm4.000 mmNot RatedDIN 462DIN 18040000000000000
    M22
    22.000 mm40.000 mm1.000 mm6.000 mm2.500 mm4.000 mmNot RatedDIN 462DIN 18040000000000000
    M24
    24.000 mm42.000 mm1.000 mm6.000 mm2.500 mm4.000 mmNot RatedDIN 462DIN 18040000000000000
    M25
    25.000 mm42.000 mm1.000 mm6.000 mm2.500 mm4.000 mmNot Rated0000000000000
    M28
    28.000 mm50.000 mm1.000 mm7.000 mm2.500 mm5.000 mmNot RatedDIN 462DIN 18040000000000000
    M30
    30.000 mm50.000 mm1.200 mm7.000 mm2.500 mm5.000 mmNot RatedDIN 462DIN 18040000000000000
    M32
    32.000 mm52.000 mm1.200 mm7.000 mm2.500 mm5.000 mmNot RatedDIN 462DIN 18040000000000000
    M35
    35.000 mm55.000 mm1.200 mm7.000 mm2.500 mm5.000 mmNot RatedDIN 462DIN 18040000000000000
    M38
    38.000 mm58.000 mm1.200 mm8.000 mm2.500 mm5.000 mmNot RatedDIN 462DIN 18040000000000000
    M40
    40.000 mm62.000 mm1.200 mm8.000 mm2.500 mm5.000 mmNot RatedDIN 462DIN 18040000000000000
    M42
    42.000 mm62.000 mm1.200 mm8.000 mm2.500 mm5.000 mmNot RatedDIN 462DIN 18040000000000000
    M45
    45.000 mm68.000 mm1.200 mm8.000 mm2.500 mm5.000 mmNot RatedDIN 462DIN 18040000000000000
    M48
    48.000 mm75.000 mm1.200 mm8.000 mm2.500 mm5.000 mmNot RatedDIN 462DIN 18040000000000000
    M50
    50.000 mm75.000 mm1.200 mm8.000 mm2.500 mm5.000 mmNot RatedDIN 462DIN 18040000000000000
     
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