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    357 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"1091235A11200000
    5/16"
    0.324"0.807"0.060" to 0.064"0.100"1091235A1150000
    3/8"
    0.389"0.930"0.070" to 0.076"0.112"1091235A1200000
    1/2"
    0.519"1.179"0.091" to 0.100"0.152"591235A1260000
    5/8"
    0.644"1.500"0.130" to 0.140"0.177"191235A2160000
    3/4"
    0.773"1.750"0.130" to 0.140"0.195"191235A2170000
    M2
    2.2 mm5.0 mm0.4 mm0.6 mmDIN 67965091477A12200000
    M2.5
    2.7 mm6.0 mm0.5 mm0.7 mmDIN 67961091477A3100000
    M3
    3.2 mm7.0 mm0.6 mm0.9 mmDIN 679610091477A1210000
    M4
    4.3 mm9.0 mm1.0 mm1.3 mmDIN 67962591477A1410000
    M5
    5.3 mm11.0 mm1.2 mm1.6 mmDIN 67962591477A12300000
    M6
    6.2 mm14.3 mm1.0 mm1.8 mm1091235A41500000
    M6
    6.4 mm14.0 mm1.5 mm2.0 mmDIN 67962591477A1610000
    M8
    8.4 mm18.0 mm2.0 mm2.6 mmDIN 67961091477A1810000
    M10
    10.2 mm20.7 mm1.5 mm2.3 mm1091235A41100000
    M10
    10.5 mm23.0 mm2.5 mm3.2 mmDIN 67961091477A1900000
    M12
    13.0 mm29.0 mm3.0 mm4.0 mmDIN 67961091477A2000000
    M14
    15.0 mm35.0 mm3.5 mm4.7 mmDIN 6796191477A1240000
    M16
    17.0 mm39.0 mm4.0 mm5.3 mmDIN 6796191477A1250000
    M18
    19.0 mm42.0 mm4.5 mm5.8 mmDIN 6796191477A19100000
    M20
    21.0 mm45.0 mm5.0 mm6.4 mmDIN 6796191477A19200000
     
    Black-Oxide 18-8 Stainless Steel
    M3
    3.2 mm8.0 mm0.5 mm0.7 mm1091235A6110000
    M4
    4.2 mm10.0 mm0.5 mm0.8 mm1091235A6120000
    M5
    5.2 mm10.0 mm0.5 mm0.8 mm1091235A6130000
    M6
    6.2 mm12.0 mm0.5 mm0.9 mm1091235A6140000
    M6
    6.4 mm14.0 mm1.5 mm2.0 mmDIN 6796592471A1100000
    M7
    7.2 mm14.0 mm0.5 mm0.9 mm591235A6150000
    M8
    8.2 mm16.0 mm0.6 mm1.1 mm591235A6160000
    M8
    8.4 mm18.0 mm2.0 mm2.6 mmDIN 6796592471A1200000
    M10
    10.5 mm23.0 mm2.5 mm3.2 mmDIN 6796592471A13000000
    M12
    13.0 mm29.0 mm3.0 mm4.0 mmDIN 6796592471A14000000
    M16
    17.0 mm39.0 mm4.0 mm5.3 mmDIN 6796192471A15000000
     
    Super-Corrosion-Resistant 316 Stainless Steel
    M2
    2.2 mm5.0 mm0.4 mm0.6 mmDIN 67962593237A10100000
    M3
    3.2 mm7.0 mm0.6 mm0.9 mmDIN 67962593237A10200000
    M4
    4.3 mm9.0 mm1.0 mm1.3 mmDIN 67961093237A1030000
    M4
    4.3 mm14.0 mm0.4 mm2.0 mmDIN 4325097471A12000000
    M5
    5.3 mm11.0 mm1.2 mm1.6 mmDIN 67961093237A10400000
    M5
    5.3 mm17.0 mm0.8 mm2.5 mmDIN 4322597471A12100000
    M6
    6.4 mm14.0 mm1.5 mm2.0 mmDIN 67961093237A10500000
    M6
    6.4 mm19.0 mm0.8 mm3.0 mmDIN 4322597471A12200000
    M8
    8.4 mm18.0 mm2.0 mm2.6 mmDIN 6796593237A10600000
    M8
    8.4 mm22.0 mm1.0 mm4.0 mmDIN 4321097471A12300000
    M10
    10.5 mm23.0 mm2.5 mm3.2 mmDIN 6796193237A1070000
    M10
    10.5 mm26.0 mm1.0 mm4.0 mmDIN 4321097471A12400000
    M12
    13.0 mm29.0 mm3.0 mm4.0 mmDIN 6796193237A1080000
    M12
    13.0 mm30.0 mm1.2 mm4.5 mmDIN 4321097471A12500000
    M14
    15.0 mm33.0 mm1.2 mm4.5 mmDIN 432597471A12600000
    M14
    15.0 mm35.0 mm3.5 mm4.7 mmDIN 6796193237A10900000
    M16
    17.0 mm36.0 mm1.2 mm4.5 mmDIN 432597471A12700000
    M16
    17.0 mm39.0 mm4.0 mm5.3 mmDIN 6796193237A11200000
    M20
    21.0 mm42.0 mm1.6 mm4.5 mmDIN 432197471A1290000
    M20
    21.0 mm45.0 mm5.0 mm6.4 mmDIN 6796193237A11500000
    M22
    23.0 mm50.0 mm1.6 mm6.5 mmDIN 432197471A1300000
    M24
    25.0 mm50.0 mm1.6 mm6.5 mmDIN 432197471A1310000
    M27
    28.0 mm58.0 mm1.6 mm9.5 mmDIN 432197471A13200000
    M30
    31.0 mm63.0 mm1.6 mm9.5 mmDIN 432197471A1330000
     
    High-Strength 17-7 PH Stainless Steel
    No. 6
    0.143"0.341"0.023" to 0.027"0.042"5091235A10200000
    No. 8
    0.169"0.403"0.029" to 0.033"0.050"5091235A10500000
    No. 10
    0.197"0.465"0.033" to 0.037"0.057"2591235A1090000
    1/4"
    0.252"0.551"0.048" to 0.052"0.067"2591235A2110000
    5/16"
    0.331"0.709"0.074" to 0.082"0.102"1091235A2120000
    3/8"
    0.413"0.906"0.074" to 0.082"0.106"1091235A2130000
    1/2"
    0.512"1.142"0.093" to 0.103"0.130"591235A21400000
    5/8"
    0.669"1.535"0.131" to 0.145"0.185"191235A2150000
    M3
    3.2 mm7.0 mm0.6 mm0.9 mm1091235A31300000
    M4
    4.2 mm8.0 mm0.4 mm0.8 mm2591235A31400000
    M4
    4.2 mm9.0 mm0.9 mm1.3 mm1091235A31500000
    M4
    4.3 mm9.0 mm1.0 mm1.3 mmDIN 6796592471A16000000
    M5
    5.2 mm11.9 mm0.8 mm1.4 mm591235A3170000
    M5
    5.3 mm11.0 mm0.9 mm1.4 mm1091235A31600000
    M5
    5.3 mm11.0 mm1.2 mm1.6 mmDIN 6796592471A17000000
    M6
    6.2 mm13.9 mm1.0 mm1.8 mm1091235A3180000
    M12
    12.3 mm23.8 mm1.8 mm2.7 mm191235A3110000
    M16
    16.1 mm38.7 mm3.8 mm5.7 mm191235A3120000
     
    Zinc-Plated Steel
    No. 6
    0.142"0.362"0.025" to 0.031"0.047"Top5090127A1110000
    No. 8
    0.161"0.402"0.036" to 0.042"0.059"Top1090127A1120000
    No. 10
    0.201"0.481"0.047" to 0.053"0.073"Top1090127A1130000
    1/4"
    0.254"0.559"0.049" to 0.055"0.087"Top5090127A1140000
    5/16"
    0.323"0.717"0.052" to 0.058"0.095"Top2590127A1150000
    3/8"
    0.402"0.877"0.059" to 0.065"0.108"Top2590127A1160000
    7/16"
    0.489"1.074"0.075" to 0.082"0.120"Top1090127A1170000
    5/8"
    0.646"1.273"0.095" to 0.101"0.156"Top590127A11800000
    3/4"
    0.773"1.750"0.127" to 0.141"0.171"590127A11900000
    7/8"
    0.901"2.000"0.146" to 0.162"0.196"190127A1210000
    1"
    1.030"2.250"0.163" to 0.181"0.219"190127A1220000
    1 1/8"
    1.155"2.500"0.182" to 0.202"0.243"190127A12300000
    1 1/4"
    1.280"2.750"0.200" to 0.222"0.267"190127A12400000
    1 1/2"
    1.530"3.250"0.238" to 0.263"0.315"190127A12600000
    M2
    2.2 mm5.0 mm0.4 mm0.6 mmDIN 679610095221A10100000
    M3
    3.2 mm7.0 mm0.6 mm0.9 mmDIN 679610095221A10300000
    M4
    4.3 mm9.0 mm1.0 mm1.3 mmDIN 679610095221A10500000
    M5
    5.3 mm11.0 mm1.2 mm1.6 mmDIN 67965095221A1070000
    M6
    6.2 mm14.3 mm1.1 mm1.7 mm2590127A12700000
    M6
    6.4 mm14.0 mm1.5 mm2.0 mmDIN 67962595221A1090000
    M8
    8.4 mm18.0 mm2.0 mm2.4 mm1090127A1280000
    M8
    8.4 mm18.0 mm2.0 mm2.6 mmDIN 67962595221A1110000
    M10
    10.3 mm20.5 mm1.5 mm2.6 mm1090127A1290000
    M10
    10.3 mm26.9 mm2.0 mm3.7 mm1090127A13100000
    M10
    10.5 mm23.0 mm2.5 mm3.2 mmDIN 67961095221A11300000
    M12
    13.0 mm29.0 mm3.0 mm4.0 mmDIN 6796595221A11500000
    M14
    15.0 mm35.0 mm3.4 mm4.3 mmDIN 6796195221A12500000
    M16
    16.4 mm39.0 mm3.9 mm5.3 mmDIN 6796595221A12600000
    M18
    19.0 mm42.0 mm4.5 mm5.8 mmDIN 6796195221A13000000
    M20
    20.5 mm44.5 mm3.3 mm4.3 mm190127A1320000
    M20
    21.0 mm45.0 mm5.0 mm6.4 mmDIN 6796195221A13100000
    M24
    25.0 mm56.0 mm6.0 mm7.8 mmDIN 6796195221A13300000
     
    Phosphate-Coated Steel
    M2
    2.2 mm5.0 mm0.4 mm0.6 mmDIN 679610095221A20000000
    M3
    3.2 mm7.0 mm0.6 mm0.9 mmDIN 679610095221A20100000
    M4
    4.3 mm9.0 mm1.0 mm1.3 mmDIN 679610095221A20200000
    M5
    5.3 mm11.0 mm1.2 mm1.6 mmDIN 679610095221A20300000
    M6
    6.4 mm14.0 mm1.5 mm2.0 mmDIN 67965095221A20400000
    M8
    8.4 mm18.0 mm2.0 mm2.6 mmDIN 67965095221A20500000
    M10
    10.5 mm23.0 mm2.5 mm3.2 mmDIN 67961095221A20600000
    M12
    13.0 mm29.0 mm3.0 mm4.0 mmDIN 67961095221A20700000
    M14
    15.0 mm35.0 mm3.5 mm4.7 mmDIN 6796395221A20800000
    M16
    17.0 mm39.0 mm4.0 mm5.3 mmDIN 6796395221A20900000
    M18
    19.0 mm42.0 mm4.5 mm5.8 mmDIN 6796295221A21000000
    M20
    21.0 mm45.0 mm5.0 mm6.4 mmDIN 6796195221A21100000
    M24
    25.0 mm56.0 mm6.0 mm7.8 mmDIN 6796195221A21300000
     
    Steel
    No. 6
    0.142"0.362"0.025" to 0.031"0.047"Top10090127A00700000
    No. 8
    0.161"0.402"0.036" to 0.042"0.059"Top10090127A00900000
    No. 10
    0.201"0.481"0.047" to 0.053"0.073"Top5090127A0110000
    1/4"
    0.254"0.559"0.049" to 0.055"0.087"Top5090127A0290000
    5/16"
    0.323"0.717"0.052" to 0.058"0.095"Top5090127A03000000
    3/8"
    0.402"0.877"0.059" to 0.065"0.108"Top2590127A03100000
    7/16"
    0.489"1.074"0.075" to 0.081"0.120"Top1090127A0320000
    1/2"
    0.512"1.074"0.075" to 0.081"0.120"Top1090127A0330000
    5/8"
    0.646"1.273"0.095" to 0.101"0.156"Top590127A0350000
    M2
    2.2 mm5.0 mm0.4 mm0.6 mmDIN 679610093497A1000000
    M3
    3.2 mm7.0 mm0.6 mm0.9 mmDIN 679610093497A1200000
    M4
    4.3 mm9.0 mm1.0 mm1.3 mmDIN 679610093497A1400000
    M4
    4.3 mm14.0 mm0.4 mm2.0 mmDIN 4321097471A10100000
    M5
    5.3 mm11.0 mm1.2 mm1.6 mmDIN 679610093497A15000000
    M5
    5.3 mm17.0 mm0.8 mm2.5 mmDIN 4321097471A10200000
    M6
    6.4 mm14.0 mm1.5 mm2.0 mmDIN 67965093497A1610000
    M6
    6.4 mm19.0 mm0.8 mm3.0 mmDIN 432597471A1030000
    M8
    8.4 mm18.0 mm2.0 mm2.6 mmDIN 67962593497A1810000
    M8
    8.4 mm22.0 mm1.0 mm4.0 mmDIN 432597471A1040000
    M10
    10.5 mm23.0 mm2.5 mm3.2 mmDIN 67961093497A1910000
    M10
    10.5 mm26.0 mm1.0 mm4.0 mmDIN 432597471A1050000
    M12
    13.0 mm29.0 mm3.0 mm4.0 mmDIN 67961093497A20000000
    M12
    13.0 mm30.0 mm1.2 mm4.5 mmDIN 432597471A10600000
    M14
    15.0 mm33.0 mm1.2 mm4.5 mmDIN 432197471A1070000
    M14
    15.0 mm35.0 mm3.4 mm4.3 mmDIN 67961093497A22500000
    M16
    16.4 mm39.0 mm3.9 mm5.3 mmDIN 6796593497A23000000
    M16
    17.0 mm36.0 mm1.2 mm4.5 mmDIN 432197471A1080000
    M18
    19.0 mm42.0 mm4.5 mm5.8 mmDIN 6796193497A3100000
    M20
    21.0 mm42.0 mm1.6 mm4.5 mmDIN 432197471A1100000
    M20
    21.0 mm45.0 mm5.0 mm6.4 mmDIN 6796193497A3200000
    M24
    25.0 mm50.0 mm1.6 mm6.5 mmDIN 432197471A1120000
    M24
    25.0 mm56.0 mm6.0 mm7.8 mmDIN 6796193497A34000000
    M30
    31.0 mm63.0 mm1.6 mm9.5 mmDIN 432197471A1140000
     
    Acetal
    No. 6, M3.5
    0.152"0.316"0.022" to 0.032"0.045"1003573A1100000
    No. 8, M4
    0.173"0.297"0.023" to 0.033"0.046"1003573A1200000
    No. 10, M5
    0.204"0.365"0.025" to 0.035"0.053"1003573A1300000
    No. 10, M5
    0.235"0.416"0.030" to 0.040"0.062"1003573A1400000
    1/4", M6
    0.264"0.564"0.033" to 0.043"0.066"1003573A1500000
    1/4", M6
    0.276"0.448"0.030" to 0.040"0.062"1003573A2100000
    5/16", M8
    0.328"0.660"0.043" to 0.053"0.080"1003573A1600000
    3/8", M10
    0.451"0.848"0.034" to 0.044"0.080"253573A2200000
    3/8", M10
    0.451"0.848"0.050" to 0.060"0.095"253573A170000
     

    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, M3
    0.126"0.217"0.020"0.037"Top and Bottom5090895A005000000
    No. 6, M3.5
    0.146"0.236"0.028"0.045"Top and Bottom5090895A00700000
    No. 8, M4
    0.169"0.276"0.028"0.047"Top and Bottom5090895A00900000
    No. 10, M5
    0.209"0.354"0.028"0.047"Top and Bottom2590895A02700000
    1/4", M6
    0.264"0.374"0.028"0.047"Top and Bottom1090895A0290000
    5/16", M8
    0.331"0.512"0.039"0.063"Top and Bottom1090895A0300000
    3/8", M10
    0.413"0.630"0.039"0.063"Top and Bottom590895A0310000
    7/16", M11
    0.457"0.626"0.051"0.073"Top and Bottom590895A1110000
    1/2", M12
    0.539"0.748"0.051"0.073"Top and Bottom590895A03300000
    9/16", M14
    0.591"0.866"0.059"0.091"Top and Bottom190895A0370000
    5/8", M16
    0.669"0.945"0.059"0.091"Top and Bottom190895A0350000
    3/4", M19
    0.787"1.181"0.071"0.102"Top and Bottom190895A0360000
    7/8", M22
    0.906"1.299"0.071"0.118"Top and Bottom190895A1130000
    1", M25
    1.063"1.496"0.098"0.142"Top and Bottom190895A11400000
    1 1/8", M30
    1.244"1.772"0.098"0.161"Top and Bottom190895A11500000
    1 3/8", M36
    1.496"2.126"0.118"0.185"Top and Bottom190895A11600000
    M1.6
    0.067"0.126"0.020"0.030"Top and Bottom5090895A22200000
    M2
    0.087"0.157"0.014"0.024"Top and Bottom5090895A00100000
    M2.5
    0.106"0.189"0.018"0.035"Top and Bottom5090895A00300000
    M3
    0.126"0.217"0.018"0.035"Top and Bottom5090488A11000000
    M4
    0.169"0.278"0.020"0.039"Top and Bottom5090488A12000000
    M6
    0.252"0.394"0.024"0.047"Top and Bottom1090488A1300000
    M7
    0.291"0.472"0.028"0.051"Top and Bottom590895A22300000
    M8
    0.331"0.512"0.028"0.055"Top and Bottom1090488A14000000
    M10
    0.413"0.630"0.035"0.063"Top and Bottom590488A15000000
    M18
    0.748"1.063"0.059"0.091"Top and Bottom190895A0210000
    M20
    0.827"1.181"0.059"0.098"Top and Bottom190895A1120000
     
    Zinc-Plated Steel
    No. 4
    0.126"0.217"0.020"0.037"Top and Bottom10090895A12100000
    No. 5, M3
    0.126"0.217"0.018"0.035"Top and Bottom10090895A2020000
    No. 6, M3.5
    0.146"0.236"0.020"0.035"Top and Bottom10090895A20300000
    No. 8, M4
    0.169"0.276"0.020"0.039"Top and Bottom10090895A20400000
    No. 10, M5
    0.209"0.354"0.024"0.043"Top and Bottom10090895A20500000
    No. 12
    0.252"0.394"0.028"0.047"Top and Bottom5090895A12200000
    1/4", M6
    0.264"0.374"0.024"0.047"Top and Bottom5090895A20700000
    5/16", M8
    0.331"0.512"0.028"0.055"Top and Bottom5090895A20800000
    3/8", M10
    0.413"0.630"0.035"0.063"Top and Bottom2590895A2090000
    7/16", M11
    0.457"0.626"0.035"0.063"Top and Bottom2590895A2100000
    1/2", M12
    0.539"0.748"0.039"0.071"Top and Bottom2590895A2120000
    9/16", M14
    0.591"0.866"0.043"0.079"Top and Bottom2590895A21300000
    5/8", M16
    0.669"0.945"0.047"0.083"Top and Bottom2590895A21400000
    3/4", M19
    0.787"1.181"0.055"0.098"Top and Bottom1090895A21600000
    7/8", M22
    0.906"1.299"0.055"0.106"Top and Bottom590895A21800000
    1", M25
    1.063"1.496"0.071"0.122"Top and Bottom590895A21900000
    1 1/16", M27
    1.126"1.535"0.071"0.122"Top and Bottom590895A22400000
    1 1/8", M30
    1.244"1.772"0.071"0.142"Top and Bottom590895A22000000
    1 3/8", M36
    1.496"2.126"0.098"0.165"Top and Bottom190895A2210000
    M1.6
    0.067"0.126"0.014"0.024"Top and Bottom10090895A3110000
    M2
    0.087"0.157"0.014"0.024"Top and Bottom10090895A2000000
    M2.5
    0.106"0.189"0.018"0.035"Top and Bottom10090895A2010000
    M18
    0.748"1.063"0.055"0.091"Top and Bottom1090895A21500000
    M20
    0.827"1.181"0.055"0.098"Top and Bottom590895A21700000
    M24
    1.008"1.417"0.063"0.114"Top and Bottom590895A31200000
     
    Steel
    No. 5, M3
    0.126"0.217"0.018"0.035"Top and Bottom10093501A0050000
    No. 6, M3.5
    0.146"0.236"0.018"0.035"Top and Bottom10093501A0070000
    No. 8, M4
    0.169"0.276"0.020"0.039"Top and Bottom10093501A0090000
    No. 10, M5
    0.209"0.354"0.024"0.043"Top and Bottom10093501A0270000
    1/4", M6
    0.264"0.374"0.028"0.047"Top and Bottom10093501A02900000
    5/16", M8
    0.331"0.512"0.031"0.055"Top and Bottom10093501A03000000
    3/8", M10
    0.413"0.630"0.039"0.063"Top and Bottom10093501A03100000
    7/16", M11
    0.457"0.626"0.039"0.063"Top and Bottom10093501A03200000
    1/2", M12
    0.539"0.748"0.043"0.071"Top and Bottom5093501A03300000
    9/16", M14
    0.591"0.866"0.047"0.079"Top and Bottom5093501A03400000
    5/8", M16
    0.669"0.945"0.051"0.083"Top and Bottom5093501A03500000
    3/4", M19
    0.787"1.181"0.059"0.098"Top and Bottom2593501A03600000
    7/8", M22
    0.906"1.299"0.059"0.106"Top and Bottom2093501A03700000
    1", M25
    1.063"1.496"0.079"0.122"Top and Bottom1093501A03800000
    1 1/8", M30
    1.244"1.772"0.079"0.142"Top and Bottom593501A02300000
    1 3/8", M36
    1.496"2.126"0.098"0.165"Top and Bottom593501A04000000
    M1.6
    0.067"0.126"0.014"0.024"Top and Bottom10093501A1110000
    M2
    0.087"0.157"0.014"0.024"Top and Bottom10093501A0010000
    M2.5
    0.106"0.189"0.018"0.035"Top and Bottom10093501A0030000
    M6
    0.252"0.394"0.024"0.047"Top and Bottom10093501A11200000
    M12
    0.512"0.709"0.039"0.067"Top and Bottom5093501A11300000
    M18
    0.748"1.063"0.059"0.091"Top and Bottom1093501A0210000
    M20
    0.827"1.181"0.059"0.098"Top and Bottom1093501A02200000
    M24
    1.008"1.417"0.063"0.114"Top and Bottom593501A11400000
    M27
    1.126"1.535"0.071"0.122"Top and Bottom593501A11500000
     

    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", M8
    0.340"0.530"0.080" to 0.090"193281A10300000
    5/16", M8
    0.340"0.650"0.080" to 0.090"193281A1130000
    3/8"
    0.410"0.650"0.090" to 0.100"193281A1040000
    1/2"
    0.530"0.770"0.130" to 0.140"193281A1070000
    5/8", M16
    0.670"1.000"0.170" to 0.180"193281A1090000
    3/4"
    0.790"1.210"0.210" to 0.220"193281A1140000
    M6
    0.260"0.430"0.070" to 0.080"193281A1010000
    M10
    0.420"0.650"0.100" to 0.110"193281A1050000
    M12
    0.510"0.770"0.13"193281A1060000
    M20
    0.840"1.210"0.220" to 0.230"193281A1120000
     

    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 9310097471A141000000
    M5
    5.317.00.51DIN 935097471A14200000
    M6
    6.419.00.51DIN 935097471A14300000
    M8
    8.422.00.81DIN 932597471A14400000
    M10
    10.526.00.81DIN 932597471A14500000
    M12
    13.030.01.01DIN 931097471A1460000
     

    Bearing 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. Bearing Spring Lock Washers for Slotted Bearing Nuts.
    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 8.290391A15100000
    7/16"
    0.484"1.016"0.046"0.120"0.064"0.148"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.290391A1520000
    9/16"
    0.601"1.156"0.046"0.120"0.066"0.172"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.290391A1530000
    5/8"
    0.679"1.328"0.046"0.120"0.067"0.195"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.290391A1540000
    3/4"
    0.801"1.531"0.046"0.176"0.062"0.203"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.290391A1550000
    15/16"
    0.989"1.719"0.054"0.176"0.072"0.221"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.290391A1560000
    1 1/8"
    1.193"1.922"0.054"0.176"0.093"0.213"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.290391A1570000
    1 5/16"
    1.333"2.234"0.067"0.176"0.106"0.217"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.290391A1580000
    1 3/8"
    1.396"2.250"0.054"0.176"0.094"0.221"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.290391A1590000
    1 1/2"
    1.583"2.469"0.063"0.290"0.095"0.232"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.290391A1610000
    1 3/4"
    1.792"2.734"0.063"0.290"0.096"0.224"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.290391A1620000
    1 7/8"
    1.992"2.922"0.063"0.290"0.097"0.239"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.290391A1630000
    2 1/8"2.182"3.109"0.068"0.290"0.103"0.225"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.290391A1640000
    2 3/8"2.400"3.344"0.068"0.290"0.124"0.249"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.290391A1650000
    2 1/2"
    2.588"3.578"0.068"0.290"1/8"0.256"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.290391A1660000
    2 3/4"
    2.791"3.828"0.068"0.290"1/8"0.256"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.290391A1670000
    2 7/8"2.973"4.109"0.077"0.290"0.135"0.274"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.290391A1680000
    3 1/8"3.177"4.375"0.077"0.353"0.132"0.267"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.290391A1690000
    3 3/8"3.395"4.625"0.077"0.353"0.133"0.298"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.290391A1710000
    3 1/2"3.582"4.938"0.100"0.353"0.155"0.329"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.290391A1720000
    3 3/4"3.800"5.219"0.100"0.353"0.156"0.329"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.290391A17300000
    3 7/8"3.988"5.500"0.100"0.353"0.171"0.344"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.290391A17400000
    4 3/8"4.395"6.063"0.132"0.353"0.203"0.401"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.290391A17500000
    4 3/4"4.801"6.469"0.132"0.353"0.204"0.400"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.290391A17600000
    M10
    10.000 mm21.000 mm1.000 mm3.000 mm1.500 mm3.000 mmExternalNot RatedDIN 5406DIN 98190391A1110000
    M12
    12.000 mm25.000 mm1.000 mm3.000 mm1.500 mm3.000 mmExternalNot RatedDIN 5406DIN 98190391A1120000
    M15
    15.000 mm28.000 mm1.000 mm4.000 mm1.500 mm2.500 mmExternalNot RatedDIN 5406DIN 98190391A1130000
    M17
    17.000 mm32.000 mm1.000 mm4.000 mm1.500 mm3.000 mmExternalNot RatedDIN 5406DIN 98190391A1140000
    M20
    20.000 mm36.000 mm1.000 mm4.000 mm1.500 mm3.500 mmExternalNot RatedDIN 5406DIN 98190391A1150000
    M25
    25.000 mm42.000 mm1.250 mm5.000 mm2.000 mm3.500 mmExternalNot RatedDIN 5406DIN 98190391A1160000
    M30
    30.000 mm49.000 mm1.250 mm5.000 mm2.500 mm4.000 mmExternalNot RatedDIN 5406DIN 98190391A1170000
    M35
    35.000 mm57.000 mm1.250 mm6.000 mm2.500 mm4.500 mmExternalNot RatedDIN 5406DIN 98190391A1180000
    M40
    40.000 mm62.000 mm1.250 mm6.000 mm2.500 mm4.000 mmExternalNot RatedDIN 5406DIN 98190391A1190000
    M45
    45.000 mm69.000 mm1.250 mm6.000 mm2.500 mm4.500 mmExternalNot RatedDIN 5406DIN 98190391A1210000
    M50
    50.000 mm74.000 mm1.250 mm6.000 mm2.500 mm4.500 mmExternalNot RatedDIN 5406DIN 98190391A1220000
    M55
    55.000 mm81.000 mm1.250 mm8.000 mm2.500 mm4.500 mmExternalNot RatedDIN 5406DIN 98190391A1230000
    M60
    60.000 mm86.000 mm1.500 mm8.000 mm2.500 mm4.500 mmExternalNot RatedDIN 5406DIN 98190391A1240000
    M65
    65.000 mm92.000 mm1.500 mm8.000 mm2.500 mm4.500 mmExternalNot RatedDIN 5406DIN 98190391A1250000
    M70
    70.000 mm98.000 mm1.500 mm8.000 mm3.500 mm4.500 mmExternalNot RatedDIN 5406DIN 98190391A1260000
    M75
    75.000 mm104.000 mm1.500 mm8.000 mm3.500 mm5.000 mmExternalNot RatedDIN 5406DIN 98190391A1270000
    M80
    80.000 mm112.000 mm1.750 mm10.000 mm3.500 mm5.500 mmExternalNot RatedDIN 5406DIN 98190391A1280000
    M85
    85.000 mm119.000 mm1.750 mm10.000 mm3.500 mm5.500 mmExternalNot RatedDIN 5406DIN 98190391A1290000
    M90
    90.000 mm126.000 mm1.750 mm10.000 mm3.500 mm6.000 mmExternalNot RatedDIN 5406DIN 98190391A13100000
    M95
    95.000 mm133.000 mm1.750 mm10.000 mm3.500 mm6.500 mmExternalNot RatedDIN 5406DIN 98190391A13200000
    M100
    100.000 mm142.000 mm1.750 mm12.000 mm3.500 mm7.000 mmExternalNot RatedDIN 5406DIN 98190391A1330000
    M105
    105.000 mm145.000 mm1.750 mm12.000 mm4.500 mm6.000 mmExternalNot RatedDIN 5406DIN 98190391A1340000
    M110
    110.000 mm154.000 mm1.750 mm12.000 mm4.500 mm6.500 mmExternalNot RatedDIN 5406DIN 98190391A13500000
    M115
    115.000 mm159.000 mm2.000 mm12.000 mm4.500 mm7.000 mmExternalNot RatedDIN 5406DIN 98190391A13600000
    M120
    120.000 mm164.000 mm2.000 mm14.000 mm5.000 mm8.000 mmExternalNot RatedDIN 5406DIN 98190391A13700000
    M125
    125.000 mm170.000 mm2.000 mm14.000 mm5.000 mm7.000 mmExternalNot RatedDIN 5406DIN 98190391A13800000
    M130
    130.000 mm175.000 mm2.000 mm14.000 mm5.000 mm8.000 mmExternalNot RatedDIN 5406DIN 98190391A13900000
    M135
    135.000 mm185.000 mm2.000 mm14.000 mm5.000 mm8.000 mmExternalNot RatedDIN 5406DIN 98190391A14100000
    M140
    140.000 mm192.000 mm2.000 mm16.000 mm5.000 mm9.500 mmExternalNot RatedDIN 5406DIN 98190391A14200000
    M145
    145.000 mm202.000 mm2.000 mm16.000 mm5.000 mm9.000 mmExternalNot RatedDIN 5406DIN 98190391A14300000
    M150
    150.000 mm205.000 mm2.000 mm16.000 mm5.000 mm10.000 mmExternalNot RatedDIN 5406DIN 98190391A14400000
    M160
    160.000 mm217.000 mm2.500 mm18.000 mm6.000 mm10.500 mmExternalNot RatedDIN 5406DIN 98190391A145000000
    M170
    170.000 mm232.000 mm2.500 mm18.000 mm6.000 mm11.500 mmExternalNot RatedDIN 5406DIN 98190391A146000000
    M180
    180.000 mm242.000 mm2.500 mm20.000 mm6.000 mm11.500 mmExternalNot RatedDIN 5406DIN 98190391A147000000
    M220
    220.000 mm292.000 mm3.000 mm24.000 mm7.000 mm13.000 mmExternalNot RatedDIN 5406DIN 98190391A148000000
     
    Stainless Steel
    3/8"
    0.406"0.875"0.046"0.120"0.063"0.125"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.290464A1100000
    7/16"
    0.484"1.106"0.046"0.120"0.064"0.148"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.290464A1200000
    9/16"
    0.601"1.156"0.046"0.120"0.066"0.172"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.290464A1300000
    5/8"
    0.679"1.328"0.046"0.120"0.067"0.195"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.290464A1400000
    3/4"
    0.801"1.531"0.046"0.176"0.062"0.203"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.290464A1500000
    15/16"
    0.989"1.719"0.054"0.176"0.072"0.221"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.290464A1600000
    1 1/8"
    1.193"1.922"0.054"0.176"0.093"0.213"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.290464A17000000
    1 3/8"
    1.396"2.250"0.054"0.176"0.094"0.221"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.290464A18000000
    1 1/2"
    1.583"2.469"0.063"0.290"0.095"0.232"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.290464A19000000
    1 3/4"
    1.792"2.734"0.063"0.290"0.096"0.224"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.290464A21000000
    1 7/8"
    1.992"2.922"0.063"0.290"0.097"0.239"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.290464A22000000
    2 1/8"2.182"3.109"0.068"0.290"0.103"0.225"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.290464A23000000
    2 3/8"2.400"3.344"0.068"0.290"0.124"0.249"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.290464A24000000
    2 1/2"
    2.588"3.578"0.068"0.290"1/8"0.256"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.290464A25000000
    2 3/4"
    2.791"3.828"0.068"0.290"1/8"0.256"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.290464A26000000
    2 7/8"2.973"4.109"0.077"0.290"0.135"0.274"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.290464A27000000
    3 1/8"3.177"4.375"0.077"0.353"0.132"0.267"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.290464A280000000
    3 3/8"3.395"4.625"0.077"0.353"0.133"0.298"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.290464A290000000
    3 1/2"3.582"4.938"0.100"0.353"0.155"0.329"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.290464A310000000
    3 3/4"3.800"5.219"0.100"0.353"0.156"0.329"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.290464A320000000
    3 7/8"3.988"5.500"0.100"0.353"0.171"0.344"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.290464A330000000
    4 3/8"4.395"6.063"0.132"0.353"0.203"0.401"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.290464A340000000
    4 3/4"4.801"6.469"0.132"0.353"0.204"0.400"ExternalNot RatedANSI/ABMA 8.2ANSI/ABMA 8.290464A350000000
     
    For Stepped Nuts
    Image of System. Front orientation. Contains Annotated. For Stepped Nuts. Bearing Spring Lock Washers for Slotted Bearing Nuts.
    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 180490407A1110000
    M10
    10.000 mm25.000 mm0.800 mm4.000 mm2.500 mm3.000 mmNot RatedDIN 462DIN 180490407A1120000
    M12
    12.000 mm28.000 mm0.800 mm5.000 mm2.500 mm3.000 mmNot RatedDIN 462DIN 180490407A1130000
    M14
    14.000 mm30.000 mm0.800 mm5.000 mm2.500 mm3.000 mmNot RatedDIN 462DIN 180490407A1140000
    M15
    15.000 mm30.000 mm0.800 mm5.000 mm2.500 mm3.000 mmNot Rated90407A1150000
    M16
    16.000 mm32.000 mm1.000 mm5.000 mm2.500 mm3.000 mmNot RatedDIN 462DIN 180490407A1160000
    M18
    18.000 mm34.000 mm1.000 mm5.000 mm2.500 mm4.000 mmNot RatedDIN 462DIN 180490407A1170000
    M20
    20.000 mm36.000 mm1.000 mm6.000 mm2.500 mm4.000 mmNot RatedDIN 462DIN 180490407A1180000
    M22
    22.000 mm40.000 mm1.000 mm6.000 mm2.500 mm4.000 mmNot RatedDIN 462DIN 180490407A1190000
    M24
    24.000 mm42.000 mm1.000 mm6.000 mm2.500 mm4.000 mmNot RatedDIN 462DIN 180490407A1210000
    M25
    25.000 mm42.000 mm1.000 mm6.000 mm2.500 mm4.000 mmNot Rated90407A1220000
    M28
    28.000 mm50.000 mm1.000 mm7.000 mm2.500 mm5.000 mmNot RatedDIN 462DIN 180490407A1230000
    M30
    30.000 mm50.000 mm1.200 mm7.000 mm2.500 mm5.000 mmNot RatedDIN 462DIN 180490407A1240000
    M32
    32.000 mm52.000 mm1.200 mm7.000 mm2.500 mm5.000 mmNot RatedDIN 462DIN 180490407A1250000
    M35
    35.000 mm55.000 mm1.200 mm7.000 mm2.500 mm5.000 mmNot RatedDIN 462DIN 180490407A1260000
    M38
    38.000 mm58.000 mm1.200 mm8.000 mm2.500 mm5.000 mmNot RatedDIN 462DIN 180490407A1270000
    M40
    40.000 mm62.000 mm1.200 mm8.000 mm2.500 mm5.000 mmNot RatedDIN 462DIN 180490407A1280000
    M42
    42.000 mm62.000 mm1.200 mm8.000 mm2.500 mm5.000 mmNot RatedDIN 462DIN 180490407A1290000
    M45
    45.000 mm68.000 mm1.200 mm8.000 mm2.500 mm5.000 mmNot RatedDIN 462DIN 180490407A1310000
    M48
    48.000 mm75.000 mm1.200 mm8.000 mm2.500 mm5.000 mmNot RatedDIN 462DIN 180490407A1320000
    M50
    50.000 mm75.000 mm1.200 mm8.000 mm2.500 mm5.000 mmNot RatedDIN 462DIN 180490407A1330000
     
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