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    188 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.
    External Tooth
    Image of Product. Front orientation. Lock Washers. Tooth Washer, External Tooth.
    Teeth on the outside edge bite into both the fastener and the mating surface for a stronger hold than internal-tooth lock washers. However, they may mar your material and snag on objects. Pair these washers with nuts and screws that are large enough to make contact with the teeth, such as pan, button, and binding 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.
    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.
    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.
    DIN 6798—Best for slightly bumpy or irregular surfaces because the teeth are angled to make even contact with the material.
    For Screw
    Size
    ID
    OD
    Thk.
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    No. 2
    0.086"0.189"0.010" to 0.013"ASME B18.21.110000000000000000
    No. 4
    0.115"0.260"0.012" to 0.018"ASME B18.21.11000000000000000
    No. 6
    0.141"0.320"0.016" to 0.022"ASME B18.21.11000000000000000
    No. 8
    0.168"0.381"0.018" to 0.023"ASME B18.21.11000000000000000
    No. 10
    0.195"0.410"0.018" to 0.024"ASME B18.21.11000000000000000
    No. 12
    0.221"0.475"0.020" to 0.027"ASME B18.21.11000000000000000
    1/4"
    0.256"0.510"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"0.694"0.032" to 0.040"ASME B18.21.1250000000000000
    1/2"
    0.513"0.900"0.037" to 0.045"ASME B18.21.1500000000000000
    5/8"
    0.641"1.070"0.042" to 0.050"ASME B18.21.1100000000000000
    3/4"
    0.768"1.260"0.047" to 0.055"ASME B18.21.150000000000000
    M2
    2.2 mm4.5 mm0.2 mm to 0.4 mmDIN 67981000000000000000
    M2
    2.3 mm4.5 mm0.2 mm to 0.4 mmDIN 67971000000000000000
    M2.5
    2.7 mm5.5 mm0.3 mm to 0.5 mmDIN 67981000000000000000
    M2.5
    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
    3.2 mm6.0 mm0.3 mm to 0.5 mmDIN 67981000000000000000
    M3.5
    3.9 mm7.0 mm0.4 mm to 0.6 mmDIN 67971000000000000000
    M4
    4.3 mm8.0 mm0.4 mm to 0.6 mmDIN 67971000000000000000
    M4
    4.3 mm8.0 mm0.4 mm to 0.6 mmDIN 67981000000000000000
    M5
    5.3 mm10.0 mm0.5 mm to 0.7 mmDIN 67971000000000000000
    M5
    5.3 mm10.0 mm0.5 mm to 0.7 mmDIN 67981000000000000000
    M6
    6.4 mm11.0 mm0.6 mm to 0.8 mmDIN 67971000000000000000
    M6
    6.4 mm11.0 mm0.6 mm to 0.8 mmDIN 67981000000000000000
    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
    M8
    8.4 mm15.0 mm0.7 mm to 0.9 mmDIN 67981000000000000000
    M10
    10.5 mm18.0 mm0.8 mm to 1.0 mmDIN 67971000000000000000
    M10
    10.5 mm18.0 mm0.8 mm to 1.0 mmDIN 679810000000000000000
    M12
    13.0 mm20.5 mm0.9 mm to 1.2 mmDIN 6797500000000000000
    M12
    13.0 mm20.5 mm0.9 mm to 1.2 mmDIN 6798500000000000000
    M14
    15.0 mm24.0 mm0.9 mm to 1.2 mmDIN 67975000000000000000
    M16
    17.0 mm26.0 mm1.0 mm to 1.4 mmDIN 6798500000000000000
    M16
    17.3 mm26.0 mm1.0 mm to 1.4 mmDIN 67975000000000000000
    M18
    19.0 mm30.0 mm1.2 mm to 1.6 mmDIN 6797100000000000000
    M20
    21.0 mm33.0 mm1.2 mm to 1.5 mmDIN 6798100000000000000
    M20
    21.0 mm33.0 mm1.2 mm to 1.6 mmDIN 6797100000000000000
    M22
    23.0 mm36.0 mm1.3 mm to 1.7 mmDIN 6797100000000000000
    M24
    25.0 mm38.0 mm1.3 mm to 1.7 mmDIN 67971000000000000000
    M24
    25.0 mm38.0 mm1.4 mm to 1.6 mmDIN 6798100000000000000
    M30
    31.0 mm48.0 mm1.4 mm to 1.8 mmDIN 67971000000000000000
     
    Black-Oxide 18-8 Stainless Steel
    No. 6
    0.141"0.320"0.016" to 0.022"ASME B18.21.11000000000000000
    No. 8
    0.168"0.381"0.018" to 0.023"ASME B18.21.11000000000000000
    No. 10
    0.195"0.410"0.018" to 0.024"ASME B18.21.11000000000000000
    1/4"
    0.256"0.510"0.023" to 0.028"ASME B18.21.11000000000000000
    5/16"
    0.320"0.610"0.028" to 0.034"ASME B18.21.11000000000000000
    3/8"
    0.384"0.694"0.032" to 0.040"ASME B18.21.110000000000000000
     
    Super-Corrosion-Resistant 316 Stainless Steel
    No. 4
    0.115"0.260"0.012" to 0.018"ASME B18.21.1100000000000000
    No. 6
    0.141"0.320"0.016" to 0.022"ASME B18.21.1100000000000000
    No. 8
    0.168"0.381"0.018" to 0.023"ASME B18.21.1100000000000000
    No. 10
    0.195"0.410"0.018" to 0.024"ASME B18.21.1100000000000000
    1/4"
    0.256"0.510"0.023" to 0.028"ASME B18.21.1250000000000000
    5/16"
    0.320"0.610"0.028" to 0.034"ASME B18.21.12500000000000000
    3/8"
    0.384"0.694"0.032" to 0.040"ASME B18.21.1100000000000000
    1/2"
    0.513"0.900"0.037" to 0.045"ASME B18.21.1100000000000000
    M3
    3.2 mm6.0 mm0.3 mm to 0.5 mmDIN 679750000000000000
    M4
    4.3 mm8.0 mm0.4 mm to 0.6 mmDIN 679750000000000000
    M5
    5.3 mm10.0 mm0.5 mm to 0.7 mmDIN 679750000000000000
    M6
    6.4 mm11.0 mm0.6 mm to 0.8 mmDIN 679750000000000000
    M8
    8.4 mm15.0 mm0.7 mm to 0.9 mmDIN 6797500000000000000
    M10
    10.5 mm18.0 mm0.8 mm to 1.0 mmDIN 679710000000000000
    M12
    13.0 mm20.5 mm0.9 mm to 1.2 mmDIN 6797100000000000000
    M14
    15.0 mm24.0 mm0.9 mm to 1.2 mmDIN 6797100000000000000
    M16
    17.3 mm26.0 mm1.0 mm to 1.4 mmDIN 6797100000000000000
    M20
    21.0 mm33.0 mm1.2 mm to 1.6 mmDIN 6797100000000000000
     
    Wear-Resistant 400 Series Stainless Steel
    No. 2
    0.096"0.195"0.010" to 0.016"1000000000000000
    No. 3
    0.102"0.235"0.010" to 0.016"ASME B18.21.11000000000000000
    No. 4
    0.115"0.260"0.012" to 0.018"ASME B18.21.11000000000000000
    No. 5
    0.129"0.285"0.014" to 0.020"ASME B18.21.11000000000000000
    No. 6
    0.141"0.320"0.016" to 0.022"ASME B18.21.11000000000000000
    No. 8
    0.168"0.381"0.018" to 0.023"ASME B18.21.11000000000000000
    No. 10
    0.195"0.410"0.018" to 0.024"ASME B18.21.11000000000000000
    No. 12
    0.221"0.475"0.020" to 0.027"ASME B18.21.11000000000000000
    1/4"
    0.256"0.510"0.023" to 0.028"ASME B18.21.11000000000000000
    5/16"
    0.320"0.610"0.028" to 0.034"ASME B18.21.11000000000000000
    3/8"
    0.384"0.694"0.032" to 0.040"ASME B18.21.1500000000000000
    7/16"
    0.448"0.760"0.032" to 0.040"ASME B18.21.1500000000000000
    1/2"
    0.513"0.900"0.037" to 0.045"ASME B18.21.1250000000000000
    9/16"
    0.576"0.985"0.037" to 0.045"ASME B18.21.1250000000000000
    5/8"
    0.641"1.070"0.042" to 0.050"ASME B18.21.1250000000000000
    3/4"
    0.768"1.260"0.047" to 0.055"ASME B18.21.12500000000000000
    7/8"
    0.897"1.410"0.052" to 0.060"ASME B18.21.150000000000000
    1"
    1.025"1.620"0.059" to 0.067"ASME B18.21.1500000000000000
     
    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.
    For Screw
    Size
    ID
    OD
    Thk.
    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
     
    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.
    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
     

    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.
    External Tooth
    Image of Product. Bottom orientation. Lock Washers. Tooth Washer, Mil. Spec., External Tooth.
    Teeth on the outside edge bite into both the fastener and the mating surface for a stronger hold than internal-tooth lock washers. However, they may mar your material and snag on objects. Pair these washers with nuts and screws that are large enough to make contact with the 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.
    For Screw
    Size
    ID
    OD
    Thk.
    Mil.
    Spec.
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    Wear-Resistant 410 Stainless Steel
    No. 4
    0.115"0.260"0.015" to 0.019"MS35335-57ASME B18.21.125000000000000000
    No. 6
    0.141"0.320"0.016" to 0.022"MS35335-58ASME B18.21.12500000000000000
    No. 8
    0.168"0.381"0.018" to 0.023"MS35335-59ASME B18.21.12500000000000000
    No. 10
    0.195"0.410"0.020" to 0.025"MS35335-60ASME B18.21.12500000000000000
    1/4"
    0.256"0.510"0.023" to 0.028"MS35335-61ASME B18.21.12500000000000000
    5/16"
    0.320"0.610"0.028" to 0.034"MS35335-62ASME B18.21.12500000000000000
    3/8"
    0.384"0.694"0.032" to 0.040"MS35335-63ASME B18.21.12500000000000000
    7/16"
    0.448"0.760"0.032" to 0.040"MS35335-64ASME B18.21.12500000000000000
    1/2"
    0.513"0.900"0.037" to 0.045"MS35335-65ASME B18.21.1100000000000000
    9/16"
    0.576"0.985"0.037" to 0.045"MS35335-66ASME B18.21.1100000000000000
    5/8"
    0.641"1.070"0.042" to 0.050"MS35335-67ASME B18.21.150000000000000
    3/4"
    0.768"1.260"0.047" to 0.055"MS35335-68ASME B18.21.150000000000000
    7/8"
    0.897"1.410"0.052" to 0.060"MS35335-69ASME B18.21.110000000000000
    1"
    1.025"1.620"0.059" to 0.067"MS35335-70ASME B18.21.110000000000000
     
    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.
    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
     

    Countersunk Tooth Lock Washers

    These washers grip flat- and oval-head countersunk screws, so you get a secure hold without overtightening. They resist loosening in applications with constant motion, such as conveyors. Tooth lock washers typically can't be reused because the teeth often get bent when tightened.
    External Tooth
    Image of Product. Front orientation. Lock Washers. Tooth Washer, Countersunk Washer, External Tooth.
    Teeth on the outside edge bite into both the screw head and the mating surface to lock the assembly in place. 
    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.
    For Screw
    Size
    ID
    OD
    Thk.
    Countersink
    Angle
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    Wear-Resistant 400 Series Stainless Steel
    No. 6
    0.140"0.289"0.017" to 0.021"82°
    ASME B18.21.110000000000000000
    No. 8
    0.167"0.322"0.017" to 0.021"82°
    ASME B18.21.110000000000000000
    No. 10
    0.195"0.354"0.020" to 0.025"82°
    ASME B18.21.1250000000000000
    No. 12
    0.220"0.421"0.020" to 0.025"82°
    ASME B18.21.1500000000000000
    1/4"
    0.255"0.454"0.020" to 0.025"82°
    ASME B18.21.1250000000000000
    5/16"
    0.318"0.599"0.023" to 0.028"82°
    ASME B18.21.1250000000000000
     
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