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    215 Products

    Tooth Lock Washers

    Grip tighter than split lock washers to prevent nuts and screws from loosening in applications with constant movement, such as conveyors. Tooth lock washers typically can't be reused because the teeth often get bent when tightened.
    Internal Tooth
    Image of Product. Front orientation. Lock Washers. Tooth Washer, Internal Tooth.
    Internal teeth dig into the nut or screw to prevent it from backing out. Unlike external-tooth lock washers, these have a smooth outside edge, so they are less likely to mar your material or snag on objects. However, they don’t grip quite as well. Pair them with fasteners that have small diameters, such as fillister and cheese head screws.
    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.
    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.
    Wear-Resistant 400 Series Stainless Steel—These grip hard material better than other types of stainless steel. They are not as corrosion resistant as 18-8 and 316 stainless steel, so they are best for environments that experience occasional moisture.
    Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.
    Black-Oxide Steel—Typically chosen for their appearance, these washers have a dark, matte coating that creates a finished look. They offer minimal corrosion resistance, so they're best for dry environments.
    Super-Corrosion-Resistant Phosphor Bronze—Stronger and more wear resistant than silicon bronze, but with the same excellent corrosion resistance. These washers won't rust or deteriorate when submerged in salt water, so they're a good fit for marine environments.
    For Screw
    Size
    ID
    OD
    Thk.
    For Fastener Strength
    Grade/Class
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    No. 4
    0.115"0.270"0.012" to 0.018"ASME B18.21.110000000000000000
    No. 6
    0.141"0.295"0.016" to 0.022"ASME B18.21.11000000000000000
    No. 8
    0.168"0.340"0.018" to 0.023"ASME B18.21.11000000000000000
    No. 10
    0.195"0.381"0.018" to 0.024"ASME B18.21.11000000000000000
    No. 12
    0.231"0.410"0.020" to 0.027"ASME B18.21.11000000000000000
    1/4"
    0.256"0.478"0.023" to 0.028"ASME B18.21.11000000000000000
    5/16"
    0.320"0.610"0.028" to 0.034"ASME B18.21.1500000000000000
    3/8"
    0.384"0.692"0.032" to 0.040"ASME B18.21.1250000000000000
    1/2"
    0.512"0.900"0.037" to 0.045"ASME B18.21.1100000000000000
    9/16"
    0.576"0.985"0.037" to 0.045"ASME B18.21.1100000000000000
    5/8"
    0.640"1.071"0.042" to 0.050"ASME B18.21.1100000000000000
    3/4"
    0.769"1.245"0.047" to 0.055"ASME B18.21.150000000000000
    M2
    2.2 mm4.5 mm0.2 mm to 0.4 mmDIN 67971000000000000000
    M2.3
    2.5 mm5.0 mm0.2 mm to 0.4 mmDIN 67971000000000000000
    M2.5
    2.7 mm5.5 mm0.2 mm to 0.5 mmDIN 67971000000000000000
    M3
    3.2 mm6.0 mm0.3 mm to 0.5 mmDIN 67971000000000000000
    M3.5
    3.7 mm7.0 mm0.4 mm to 0.6 mmDIN 67971000000000000000
    M4
    4.3 mm8.0 mm0.4 mm to 0.6 mmDIN 67971000000000000000
    M5
    5.3 mm10.0 mm0.5 mm to 0.7 mmDIN 67971000000000000000
    M6
    6.4 mm11.0 mm0.6 mm to 0.8 mmDIN 67971000000000000000
    M7
    7.4 mm12.5 mm0.7 mm to 0.9 mmDIN 67975000000000000000
    M8
    8.4 mm15.0 mm0.7 mm to 0.9 mmDIN 67971000000000000000
    M10
    10.5 mm18.0 mm0.8 mm to 1.0 mmDIN 6797500000000000000
    M12
    13.0 mm20.5 mm0.9 mm to 1.2 mmDIN 6797500000000000000
    M14
    15.0 mm24.0 mm0.9 mm to 1.2 mmDIN 6797250000000000000
    M16
    17.0 mm26.0 mm1.0 mm to 1.4 mmDIN 6797250000000000000
    M18
    19.0 mm30.0 mm1.2 mm to 1.5 mmDIN 6797100000000000000
    M20
    21.0 mm33.0 mm1.2 mm to 1.5 mmDIN 6797100000000000000
    M22
    23.0 mm36.0 mm1.3 mm to 1.6 mmDIN 6797100000000000000
    M24
    25.0 mm38.0 mm1.3 mm to 1.6 mmDIN 67971000000000000000
     
    Super-Corrosion-Resistant 316 Stainless Steel
    No. 4
    0.115"0.270"0.012" to 0.018"ASME B18.21.150000000000000
    No. 6
    0.141"0.295"0.016" to 0.022"ASME B18.21.150000000000000
    No. 8
    0.168"0.340"0.018" to 0.023"ASME B18.21.150000000000000
    No. 10
    0.195"0.381"0.018" to 0.024"ASME B18.21.150000000000000
    1/4"
    0.256"0.478"0.023" to 0.028"ASME B18.21.150000000000000
    5/16"
    0.320"0.610"0.028" to 0.034"ASME B18.21.150000000000000
    3/8"
    0.384"0.692"0.032" to 0.040"ASME B18.21.150000000000000
    1/2"
    0.530"0.867"0.037" to 0.045"ASME B18.21.150000000000000
     
    Wear-Resistant 400 Series Stainless Steel
    No. 2
    0.089"0.200"0.010" to 0.016"ASME B18.21.11000000000000000
    No. 2
    0.095"0.200"0.010" to 0.016"ASME B18.21.11,00000000000000000
    No. 3
    0.102"0.232"0.010" to 0.016"ASME B18.21.11000000000000000
    No. 4
    0.115"0.270"0.012" to 0.018"ASME B18.21.11000000000000000
    No. 4
    0.123"0.270"0.012" to 0.018"ASME B18.21.11,00000000000000000
    No. 5
    0.136"0.280"0.014" to 0.020"ASME B18.21.11000000000000000
    No. 5
    0.136"0.280"0.014" to 0.020"ASME B18.21.11,00000000000000000
    No. 6
    0.141"0.295"0.016" to 0.022"ASME B18.21.11000000000000000
    No. 6
    0.150"0.295"0.016" to 0.022"ASME B18.21.11,00000000000000000
    No. 8
    0.168"0.340"0.018" to 0.023"ASME B18.21.11000000000000000
    No. 9
    0.176"0.340"0.018" to 0.023"ASME B18.21.11,00000000000000000
    No. 10
    0.195"0.381"0.018" to 0.024"ASME B18.21.11000000000000000
    No. 10
    0.204"0.381"0.018" to 0.024"ASME B18.21.11,00000000000000000
    No. 12
    0.221"0.410"0.020" to 0.027"ASME B18.21.11000000000000000
    1/4"
    0.256"0.478"0.023" to 0.028"ASME B18.21.11000000000000000
    1/4"
    0.267"0.478"0.023" to 0.028"ASME B18.21.11,00000000000000000
    5/16"
    0.320"0.610"0.028" to 0.034"ASME B18.21.11000000000000000
    3/8"
    0.384"0.692"0.032" to 0.040"ASME B18.21.11000000000000000
    7/16"
    0.448"0.789"0.032" to 0.040"ASME B18.21.110000000000000000
    1/2"
    0.512"0.900"0.037" to 0.045"ASME B18.21.1500000000000000
    9/16"
    0.576"0.985"0.037" to 0.045"ASME B18.21.15000000000000000
    5/8"
    0.640"1.071"0.042" to 0.050"ASME B18.21.12500000000000000
    3/4"
    0.769"1.245"0.047" to 0.055"ASME B18.21.12500000000000000
    7/8"
    0.927"1.410"0.052" to 0.060"ASME B18.21.150000000000000
    1"
    1.060"1.640"0.059" to 0.067"ASME B18.21.150000000000000
     
    Zinc-Plated Steel
    No. 2
    0.089"0.200"0.010" to 0.016"ASME B18.21.11000000000000000
    No. 3
    0.102"0.232"0.010" to 0.016"ASME B18.21.11000000000000000
    No. 4
    0.115"0.270"0.012" to 0.018"ASME B18.21.11000000000000000
    No. 5
    0.129"0.280"0.014" to 0.020"ASME B18.21.11000000000000000
    No. 6
    0.141"0.295"0.016" to 0.022"ASME B18.21.11000000000000000
    No. 8
    0.168"0.340"0.018" to 0.023"ASME B18.21.11000000000000000
    No. 10
    0.195"0.381"0.018" to 0.024"ASME B18.21.11000000000000000
    No. 12
    0.221"0.410"0.020" to 0.027"ASME B18.21.11000000000000000
    1/4"
    0.256"0.478"0.023" to 0.028"ASME B18.21.11000000000000000
    1/4"
    0.256"0.536"0.034" to 0.044"SAE Grade 8
    ASME B18.21.110000000000000000
    5/16"
    0.320"0.607"0.028" to 0.034"ASME B18.21.1500000000000000
    5/16"
    0.320"0.607"0.040" to 0.050"SAE Grade 8
    ASME B18.21.15000000000000000
    3/8"
    0.384"0.681"0.032" to 0.040"ASME B18.21.1500000000000000
    3/8"
    0.384"0.747"0.040" to 0.050"SAE Grade 8
    ASME B18.21.12500000000000000
    7/16"
    0.448"0.764"0.032" to 0.040"ASME B18.21.1500000000000000
    1/2"
    0.512"0.883"0.037" to 0.045"ASME B18.21.1500000000000000
    1/2"
    0.512"0.923"0.054" to 0.070"SAE Grade 8
    ASME B18.21.11000000000000000
    9/16"
    0.576"0.985"0.037" to 0.045"ASME B18.21.1500000000000000
    5/8"
    0.640"1.071"0.042" to 0.050"ASME B18.21.15000000000000000
    5/8"
    0.640"1.134"0.054" to 0.070"SAE Grade 8
    ASME B18.21.1500000000000000
    3/4"
    0.769"1.245"0.047" to 0.055"ASME B18.21.1250000000000000
    3/4"
    0.769"1.260"0.073" to 0.083"SAE Grade 8
    ASME B18.21.1500000000000000
    7/8"
    0.894"1.410"0.052" to 0.060"ASME B18.21.12500000000000000
    1"
    1.019"1.613"0.059" to 0.067"ASME B18.21.11000000000000000
    1 1/8"
    1.144"1.830"0.059" to 0.067"ASME B18.21.11000000000000000
    1 1/4"
    1.275"1.975"0.059" to 0.067"ASME B18.21.1500000000000000
    1 3/8"
    1.394"1.950"0.060" to 0.064"10000000000000
    1 1/2"
    1.500"2.515"0.076" to 0.080"10000000000000
    M2
    2.2 mm4.5 mm0.2 mm to 0.4 mmDIN 67971000000000000000
    M2.5
    2.7 mm5.5 mm0.2 mm to 0.5 mmDIN 67971000000000000000
    M3
    3.2 mm6.0 mm0.3 mm to 0.5 mmDIN 67971000000000000000
    M3.5
    3.7 mm7.0 mm0.4 mm to 0.6 mmDIN 67971000000000000000
    M4
    4.3 mm8.0 mm0.4 mm to 0.6 mmDIN 67971000000000000000
    M5
    5.3 mm10.0 mm0.5 mm to 0.7 mmDIN 67971000000000000000
    M6
    6.4 mm11.0 mm0.6 mm to 0.8 mmDIN 67971000000000000000
    M7
    7.4 mm12.5 mm0.7 mm to 0.9 mmDIN 67971000000000000000
    M8
    8.4 mm15.0 mm0.7 mm to 0.9 mmDIN 67971000000000000000
    M10
    10.5 mm18.0 mm0.8 mm to 1.0 mmDIN 6797500000000000000
    M12
    13.0 mm20.5 mm0.9 mm to 1.2 mmDIN 67975000000000000000
    M14
    15.0 mm24.0 mm0.9 mm to 1.2 mmDIN 6797250000000000000
    M16
    17.0 mm26.0 mm1.0 mm to 1.4 mmDIN 6797250000000000000
    M18
    19.0 mm30.0 mm1.2 mm to 1.5 mmDIN 6797100000000000000
    M20
    21.0 mm33.0 mm1.2 mm to 1.5 mmDIN 67971000000000000000
    M24
    25.0 mm38.0 mm1.3 mm to 1.6 mmDIN 67971000000000000000
     
    Black-Oxide Steel
    M2
    2.2 mm4.5 mm0.2 mm to 0.4 mmDIN 67971000000000000000
    M2.5
    2.7 mm5.5 mm0.2 mm to 0.5 mmDIN 67971000000000000000
    M2.6
    2.8 mm5.5 mm0.3 mm to 0.5 mmDIN 67971000000000000000
    M3
    3.2 mm6.0 mm0.3 mm to 0.5 mmDIN 67971000000000000000
    M3.5
    3.7 mm7.0 mm0.4 mm to 0.6 mmDIN 67971000000000000000
    M4
    4.3 mm8.0 mm0.4 mm to 0.6 mmDIN 67971000000000000000
    M5
    5.3 mm10.0 mm0.5 mm to 0.7 mmDIN 67971000000000000000
    M6
    6.4 mm11.0 mm0.6 mm to 0.8 mmDIN 67971000000000000000
    M8
    8.4 mm15.0 mm0.7 mm to 0.9 mmDIN 67971000000000000000
    M10
    10.5 mm18.0 mm0.8 mm to 1.0 mmDIN 6797500000000000000
    M12
    13.0 mm20.5 mm0.9 mm to 1.2 mmDIN 6797500000000000000
    M14
    15.0 mm24.0 mm0.9 mm to 1.2 mmDIN 6797250000000000000
    M16
    17.0 mm26.0 mm1.0 mm to 1.4 mmDIN 6797250000000000000
    M18
    19.0 mm30.0 mm1.2 mm to 1.5 mmDIN 6797100000000000000
    M20
    21.0 mm33.0 mm1.2 mm to 1.5 mmDIN 67971000000000000000
     
    Super-Corrosion-Resistant Phosphor Bronze
    No. 2
    0.089"0.200"0.010" to 0.016"ASME B18.21.11000000000000000
    No. 3
    0.109"0.232"0.010" to 0.016"ASME B18.21.11000000000000000
    No. 4
    0.115"0.270"0.012" to 0.018"ASME B18.21.11000000000000000
    No. 5
    0.136"0.280"0.014" to 0.018"ASME B18.21.11000000000000000
    No. 6
    0.141"0.295"0.016" to 0.022"ASME B18.21.11000000000000000
    No. 8
    0.168"0.340"0.018" to 0.023"ASME B18.21.11000000000000000
    No. 10
    0.195"0.381"0.018" to 0.024"ASME B18.21.11000000000000000
    No. 12
    0.231"0.410"0.020" to 0.027"ASME B18.21.11000000000000000
    1/4"
    0.256"0.478"0.023" to 0.028"ASME B18.21.110000000000000000
    5/16"
    0.320"0.610"0.028" to 0.034"ASME B18.21.1500000000000000
    3/8"
    0.384"0.692"0.032" to 0.040"ASME B18.21.15000000000000000
    7/16"
    0.448"0.789"0.032" to 0.040"ASME B18.21.1250000000000000
    1/2"
    0.512"0.900"0.037" to 0.045"ASME B18.21.12500000000000000
    5/8"
    0.640"1.071"0.042" to 0.050"ASME B18.21.150000000000000
    3/4"
    0.795"1.245"0.047" to 0.055"ASME B18.21.150000000000000
     
    Internal and External Tooth
    Image of Product. Front orientation. Lock Washers. Tooth Washer, Internal and External Tooth.
    The strongest hold of all our tooth lock washers, these combine internal and external teeth to boost gripping power. However, the teeth may mar your material and snag on objects. Pair these washers with fasteners that are large enough to make contact with the external teeth, such as pan, button, and binding head screws.
    Wear-Resistant 410 Stainless Steel—These grip hard material better than other types of stainless steel. They are not as corrosion resistant as 18-8 and 316 stainless steel, so they are best for environments that experience occasional moisture.
    Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.
    Black-Oxide Steel—Typically chosen for their appearance, these washers have a dark, matte coating that creates a finished look. They offer minimal corrosion resistance, so they're best for dry environments.
    For Screw
    Size
    ID
    OD
    Thk.
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    Wear-Resistant 410 Stainless Steel
    No. 4
    0.115"0.475"0.016" to 0.021"ASME B18.21.110000000000000000
    No. 6
    0.141"0.510"0.023" to 0.028"ASME B18.21.11000000000000000
    No. 8
    0.168"0.610"0.028" to 0.034"ASME B18.21.11000000000000000
    No. 10
    0.195"0.610"0.028" to 0.034"ASME B18.21.11000000000000000
    1/4"
    0.256"0.760"0.032" to 0.040"ASME B18.21.1500000000000000
    5/16"
    0.320"0.900"0.032" to 0.040"ASME B18.21.1500000000000000
    3/8"
    0.384"0.985"0.037" to 0.045"ASME B18.21.1250000000000000
    1/2"
    0.512"1.260"0.047" to 0.055"ASME B18.21.1100000000000000
     
    Zinc-Plated Steel
    No. 4
    0.116"0.478"0.016" to 0.018"ASME B18.21.1500000000000000
    No. 6
    0.142"0.506"0.023" to 0.027"ASME B18.21.1500000000000000
    No. 8
    0.168"0.506"0.023" to 0.027"ASME B18.21.110000000000000000
    No. 10
    0.195"0.601"0.027" to 0.031"ASME B18.21.110000000000000000
    1/4"
    0.256"0.760"0.033" to 0.037"ASME B18.21.110000000000000000
    5/16"
    0.320"0.898"0.033" to 0.037"ASME B18.21.15000000000000000
    3/8"
    0.384"0.985"0.037" to 0.041"ASME B18.21.15000000000000000
    7/16"
    0.448"1.070"0.043" to 0.047"ASME B18.21.1100000000000000
    1/2"
    0.512"1.260"0.048" to 0.052"ASME B18.21.1250000000000000
    5/8"
    0.640"1.620"0.060" to 0.064"ASME B18.21.1500000000000000
    M3
    3.2 mm12.0 mm1.4 mm to 1.7 mm5000000000000000
    M4
    4.3 mm15.0 mm1.9 mm to 2.3 mm5000000000000000
    M4
    4.3 mm18.0 mm2.2 mm to 2.6 mm250000000000000
    M5
    5.3 mm18.0 mm2.2 mm to 2.6 mm2500000000000000
    M6
    6.5 mm18.0 mm2.2 mm to 2.6 mm2500000000000000
    M8
    8.5 mm22.0 mm2.7 mm to 3.3 mm2500000000000000
    M10
    10.5 mm26.0 mm2.7 mm to 3.3 mm1000000000000000
    M12
    12.5 mm30.0 mm3.2 mm to 4.0 mm1000000000000000
    M16
    16.5 mm35.0 mm3.8 mm to 4.6 mm500000000000000
     
    Black-Oxide Steel
    No. 6
    0.142"0.506"0.023" to 0.027"ASME B18.21.11000000000000000
    No. 8
    0.168"0.506"0.023" to 0.027"ASME B18.21.110000000000000000
    1/4"
    0.256"0.760"0.033" to 0.037"ASME B18.21.110000000000000000
    5/16"
    0.320"0.898"0.033" to 0.037"ASME B18.21.15000000000000000
    3/8"
    0.384"0.985"0.037" to 0.041"ASME B18.21.12500000000000000
    7/16"
    0.448"1.070"0.043" to 0.047"ASME B18.21.12500000000000000
    1/2"
    0.512"1.260"0.048" to 0.052"ASME B18.21.1100000000000000
     

    Mil. Spec. Tooth Lock Washers

    These washers are manufactured and tested to strict U.S. military standards for material and construction. They resist vibration better than split lock washers to prevent nuts and screws from loosening in applications with constant movement, such as conveyors. Tooth lock washers typically can't be reused because the teeth often get bent when tightened.
    Internal Tooth
    Image of Product. Front orientation. Lock Washers. Tooth Washer, Mil. Spec., Internal Tooth.
    Internal teeth dig into the nut or screw to prevent it from backing out. Unlike external-tooth lock washers, these have a smooth outside edge, so they are less likely to mar your material or snag on objects. However, they don’t grip quite as well. Pair them with fasteners that have small diameters, such as fillister and cheese head screws.
    Wear-Resistant 410 Stainless Steel—These grip hard material better than other types of stainless steel. They are not as corrosion resistant as 18-8 and 316 stainless steel, so they are best for environments that experience occasional moisture.
    Corrosion-Resistant Cadmium-Plated Steel—The finish creates a better barrier against rust than zinc plating for use in wet and outdoor environments.
    Super-Corrosion-Resistant Phosphor Bronze—Stronger and more wear resistant than silicon bronze, but with the same excellent corrosion resistance. These washers won't rust or deteriorate when submerged in salt water, so they're a good fit for marine environments.
    For Screw
    Size
    ID
    OD
    Thk.
    Mil. Spec.
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    Wear-Resistant 410 Stainless Steel
    No. 2
    0.089"0.200"0.010" to 0.015"MS35333-69ASME B18.21.1, NASM353332500000000000000
    No. 4
    0.115"0.270"0.015" to 0.019"MS35333-70ASME B18.21.1, NASM353332500000000000000
    No. 6
    0.141"0.295"0.017" to 0.021"MS35333-71ASME B18.21.1, NASM353332500000000000000
    No. 8
    0.168"0.340"0.018" to 0.023"MS35333-72ASME B18.21.1, NASM353332500000000000000
    No. 10
    0.195"0.381"0.020" to 0.025"MS35333-73ASME B18.21.1, NASM353332500000000000000
    1/4"
    0.256"0.478"0.023" to 0.028"MS35333-74ASME B18.21.1, NASM353332500000000000000
    5/16"
    0.332"0.610"0.028" to 0.034"MS35333-75ASME B18.21.1, NASM35333250000000000000
    3/8"
    0.384"0.692"0.032" to 0.040"MS35333-76ASME B18.21.1, NASM353332500000000000000
    7/16"
    0.448"0.789"0.032" to 0.040"MS35333-77ASME B18.21.1, NASM353332500000000000000
    1/2"
    0.512"0.900"0.037" to 0.045"MS35333-78ASME B18.21.1, NASM353331000000000000000
    5/8"
    0.640"1.071"0.042" to 0.050"MS35333-80ASME B18.21.1, NASM353331000000000000000
    3/4"
    0.769"1.245"0.047" to 0.055"MS35333-81ASME B18.21.1, NASM35333500000000000000
    7/8"
    0.894"1.410"0.052" to 0.060"MS35333-82ASME B18.21.1, NASM35333500000000000000
     
    Corrosion-Resistant Cadmium-Plated Steel
    No. 2
    0.089"0.200"0.010" to 0.015"MS35333-35ASME B18.21.1, NASM35333250000000000000
    No. 4
    0.115"0.270"0.015" to 0.019"MS35333-36ASME B18.21.1, NASM35333250000000000000
    No. 6
    0.141"0.295"0.017" to 0.021"MS35333-37ASME B18.21.1, NASM35333250000000000000
    No. 8
    0.168"0.340"0.018" to 0.023"MS35333-38ASME B18.21.1, NASM35333250000000000000
    No. 10
    0.195"0.381"0.020" to 0.025"MS35333-39ASME B18.21.1, NASM35333250000000000000
    1/4"
    0.256"0.478"0.023" to 0.028"MS35333-40ASME B18.21.1, NASM35333250000000000000
    5/16"
    0.332"0.610"0.028" to 0.034"MS35333-41ASME B18.21.1, NASM35333250000000000000
    3/8"
    0.384"0.692"0.032" to 0.040"MS35333-42ASME B18.21.1, NASM353332500000000000000
    7/16"
    0.448"0.789"0.032" to 0.040"MS35333-43ASME B18.21.1, NASM353332500000000000000
    1/2"
    0.512"0.900"0.037" to 0.045"MS35333-44ASME B18.21.1, NASM353332500000000000000
    5/8"
    0.640"1.071"0.042" to 0.050"MS35333-46ASME B18.21.1, NASM35333100000000000000
    3/4"
    0.769"1.245"0.047" to 0.055"MS35333-47ASME B18.21.1, NASM35333100000000000000
    7/8"
    0.894"1.410"0.052" to 0.060"MS35333-48ASME B18.21.1, NASM353331000000000000000
    1"
    1.019"1.637"0.059" to 0.067"MS35333-49ASME B18.21.1, NASM3533350000000000000
    1 1/4"
    1.260"1.950"0.059" to 0.067"MS35333-51ASME B18.21.1, NASM3533350000000000000
     
    Super-Corrosion-Resistant Phosphor Bronze
    No. 2
    0.089"0.200"0.010" to 0.015"MS35333-103ASME B18.21.1, NASM35333250000000000000
    No. 4
    0.115"0.270"0.015" to 0.019"MS35333-104ASME B18.21.1, NASM35333250000000000000
    No. 6
    0.141"0.295"0.017" to 0.021"MS35333-105ASME B18.21.1, NASM353332500000000000000
    No. 8
    0.168"0.340"0.018" to 0.023"MS35333-106ASME B18.21.1, NASM353332500000000000000
    No. 10
    0.195"0.381"0.020" to 0.025"MS35333-107ASME B18.21.1, NASM353332500000000000000
    1/4"
    0.256"0.478"0.023" to 0.028"MS35333-108ASME B18.21.1, NASM353332500000000000000
    5/16"
    0.332"0.610"0.028" to 0.034"MS35333-109ASME B18.21.1, NASM35333100000000000000
    3/8"
    0.384"0.692"0.032" to 0.040"MS35333-110ASME B18.21.1, NASM35333100000000000000
    1/2"
    0.512"0.900"0.037" to 0.045"MS35333-113ASME B18.21.1, NASM3533350000000000000
     

    Domed Tooth Lock Washers

    Limit damage to your material while ensuring nuts and screws stay tight. These washers have a slight dome that flattens under pressure, distributing pressure over a wide surface area and eliminating stress points. They also have smooth tabs on the outside edge that add friction for a tight grip, without digging into your mounting surface the way a sharp tooth would. Tooth lock washers prevent fasteners from loosening in applications with constant movement, such as conveyors. They typically can't be reused because the teeth often get bent when tightened.
    Internal Tooth
    Image of Product. Front orientation. Lock Washers. Tooth Washer, Domed Washer, Internal Tooth.
    Internal teeth dig into the nut or screw to prevent it from backing out. They grip best on fasteners with small diameters, such as fillister and cheese head screws.
    Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.
    For Screw
    Size
    ID
    OD
    Thk.
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Steel
    No. 6
    0.146"0.569"0.023" to 0.027"1000000000000000
    No. 8
    0.168"0.569"0.023" to 0.027"1000000000000000
    No. 10
    0.195"0.569"0.027" to 0.031"1000000000000000
    1/4"
    0.256"0.698"0.048" to 0.052"500000000000000
    5/16"
    0.320"0.885"0.060" to 0.064"500000000000000
    3/8"
    0.384"1.010"0.060" to 0.064"500000000000000
     

    Tooth Lock Washer Assortments

    Image of Product. Front orientation. Lock Washers. Sold as Assortments, Tooth Washer.
    Keep a collection of tooth lock washers on hand to work with a range of screw sizes. The teeth bite into material to prevent fasteners from loosening in applications with constant movement, such as conveyors. External-tooth lock washers grip tighter than internal-tooth lock washers, however, they may mar your material and snag on objects. Tooth lock washers typically can't be reused because the teeth often get bent when tightened.
    Labels in the lid include our part numbers, so it's easy to replenish the assortments.
    Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.
    No. of
    Pieces
    Sizes Included
    Container
    Type
    Each
    Zinc-Plated Steel
    1,335635 External Tooth Lock Washers (For No. 4 to 1/2" Screw Sizes)
    700 Internal Tooth Lock Washers (For No. 2 to 3/8" Screw Sizes)
    Plastic Box000000000000000
     
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