McMaster-Carr logo
    System of Measurement
    System of Measurement
    Inch
    Metric
    Length
    Length
    0.091"
    0.103"
    0.11"
    1/8"
    0.13"
    0.14"
    0.141"
    0.15"
    0.152"
    0.155"
    0.156"
    0.157"
    0.161"
    0.166"
    0.169"
    0.17"
    0.18"
    0.185"
    3/16"
    0.188"
    0.189"
    0.195"
    0.197"
    1/5"
    0.203"
    0.208"
    0.209"
    0.21"
    0.212"
    0.214"
    0.218"
    0.219"
    0.22"
    0.224"
    0.225"
    0.226"
    0.228"
    0.234"
    0.236"
    0.237"
    0.24"
    0.243"
    0.248"
    1/4"
    0.258"
    0.26"
    0.262"
    0.266"
    0.27"
    0.271"
    0.274"
    0.275"
    0.277"
    0.28"
    0.281"
    0.29"
    0.291"
    0.296"
    0.297"
    0.299"
    0.3"
    0.301"
    0.305"
    0.31"
    0.312"
    5/16"
    0.313"
    0.315"
    0.317"
    0.32"
    0.321"
    0.322"
    0.325"
    0.328"
    0.33"
    0.333"
    0.335"
    0.337"
    0.339"
    0.34"
    0.341"
    0.343"
    0.344"
    0.352"
    0.354"
    0.355"
    0.356"
    0.36"
    0.362"
    0.363"
    0.37"
    3/8"
    0.377"
    0.38"
    0.382"
    0.387"
    0.389"
    0.39"
    0.391"
    0.392"
    0.394"
    0.395"
    2/5"
    0.402"
    0.405"
    0.406"
    0.41"
    0.414"
    0.415"
    0.42"
    0.421"
    0.422"
    0.425"
    0.426"
    0.43"
    0.433"
    0.435"
    0.437"
    7/16"
    0.438"
    0.44"
    0.442"
    0.445"
    0.447"
    0.45"
    0.453"
    0.454"
    0.455"
    0.456"
    0.458"
    0.462"
    0.466"
    0.468"
    0.469"
    0.47"
    0.472"
    0.475"
    0.485"
    0.486"
    0.487"
    0.488"
    0.49"
    0.498"
    1/2"
    0.502"
    0.506"
    0.512"
    0.514"
    0.515"
    0.518"
    0.519"
    0.52"
    0.522"
    0.525"
    0.529"
    0.53"
    0.531"
    0.535"
    0.54"
    0.546"
    0.547"
    0.549"
    0.55"
    0.551"
    0.552"
    0.555"
    0.56"
    0.562"
    0.563"
    0.567"
    0.57"
    0.571"
    0.572"
    0.575"
    0.579"
    0.58"
    0.582"
    0.585"
    0.586"
    0.59"
    0.591"
    0.592"
    0.594"
    3/5"
    0.605"
    0.608"
    0.61"
    0.612"
    0.62"
    5/8"
    0.63"
    0.641"
    0.642"
    0.644"
    0.645"
    0.65"
    0.655"
    0.656"
    0.66"
    0.661"
    0.665"
    0.669"
    0.67"
    0.671"
    0.675"
    0.68"
    0.684"
    0.685"
    0.687"
    0.688"
    0.69"
    0.692"
    0.695"
    0.697"
    0.698"
    0.7"
    0.705"
    0.708"
    0.709"
    0.716"
    0.72"
    0.728"
    0.73"
    0.732"
    0.735"
    0.74"
    0.748"
    3/4"
    0.767"
    0.768"
    0.775"
    0.781"
    0.783"
    0.784"
    0.787"
    0.796"
    4/5"
    0.805"
    0.81"
    0.812"
    0.813"
    0.817"
    0.82"
    0.825"
    0.826"
    0.827"
    0.828"
    0.84"
    0.844"
    0.848"
    0.85"
    0.866"
    7/8"
    0.876"
    0.888"
    0.894"
    0.895"
    0.9"
    0.902"
    0.906"
    0.91"
    0.915"
    0.92"
    0.921"
    0.925"
    0.93"
    0.935"
    0.937"
    0.938"
    0.942"
    0.945"
    0.946"
    0.947"
    0.95"
    0.955"
    0.96"
    0.978"
    0.984"
    0.99"
    1"
    1.004"
    1.023"
    1.024"
    1.026"
    1.03"
    1.05"
    1.06"
    1 1/16"
    1.063"
    1.07"
    1.075"
    1.087"
    1.102"
    1.12"
    1 1/8"
    1.141"
    1.144"
    1.147"
    1.15"
    1.163"
    1.171"
    1.175"
    1.18"
    1.181"
    1.187"
    1.188"
    1.19"
    1.192"
    1.195"
    1.197"
    1.2"
    1.205"
    1.21"
    1.22"
    1.234"
    1.248"
    1 1/4"
    1.268"
    1.3"
    1.313"
    1.325"
    1.373"
    1 3/8"
    1.394"
    1.41"
    1.417"
    1.421"
    1.43"
    1.437"
    1.442"
    1.445"
    1.45"
    1.455"
    1 1/2"
    1.563"
    1.612"
    1.614"
    1 5/8"
    1.632"
    1.807"
    1.81"
    1.811"
    1 13/16"
    1 7/8"
    1.894"
    2"
    2.007"
    2.008"
    2 1/8"
    2.132"
    2.312"
    2 5/16"
    2 1/2"
    2 9/16"
    2 5/8"
    2 11/16"
    2 3/4"
    2 29/32"
    3"
    3 1/8"
    3.188"
    3 5/16"
    3 3/8"
    3 1/2"
    3 11/16"
    3 3/4"
    3 15/16"
    4"
    4 1/16"
    4 1/4"
    4 7/16"
    4 1/2"
    4 13/16"
    5"
    5 1/2"
    5 3/4"
    5 7/8"
    6"
    6 1/4"
    6 3/8"
    6 1/2"
    6 3/4"
    7"
    7 1/2"
    8 1/4"
    8 1/2"
    8 3/4"
    9"
    9 1/4"
    9 1/2"
    10"
    10 1/2"
    10 3/4"
    11"
    11 5/8"
    12"
    12 3/8"
    12 1/2"
    12 3/4"
    13"
    13 1/4"
    13 1/2"
    14"
    18"
    21"
    4.85mm
    6mm
    6.1mm
    6.6mm
    7.57mm
    8mm
    8.33mm
    9mm
    10mm
    10.3mm
    10.7mm
    11mm
    11.1mm
    11.4mm
    11.9mm
    12mm
    12.1mm
    12.24mm
    12.29mm
    12.3mm
    12.6mm
    12.7mm
    12.9mm
    13.2mm
    13.21mm
    13.5mm
    14mm
    14.7mm
    14.9mm
    15.2mm
    16mm
    16.1mm
    16.3mm
    16.7mm
    17.3mm
    17.5mm
    18mm
    18.4mm
    18.5mm
    18.6mm
    19mm
    19.2mm
    19.6mm
    19.9mm
    20mm
    20.5mm
    20.6mm
    21mm
    22.2mm
    22.3mm
    22.8mm
    22.9mm
    23.1mm
    23.2mm
    23.8mm
    24mm
    25mm
    25.4mm
    25.6mm
    28.35mm
    29mm
    29.2mm
    29.39mm
    30mm
    30.2mm
    33mm
    35mm
    35.3mm
    36.8mm
    37.7mm
    40mm
    For Material Thickness
    For Material Thickness
    0"-0.063"
    0"-0.125"
    0.01"-0.031"
    0.010"-0.075"
    0.010"-0.080"
    0.010"-0.085"
    0.01"-0.165"
    0.01"-0.18"
    0.01"-0.25"
    0.01"-0.375"
    0.01"-2.187"
    0.015"-0.050"
    0.015"-0.094"
    0.015"-0.156"
    0.015"-0.188"
    0.015"-0.437"
    0.016"-0.188"
    0.02"-0.062"
    0.020"-0.080"
    0.020"-0.085"
    0.020"-0.1"
    0.02"-0.125"
    0.020"-0.130"
    0.020"-0.175"
    0.02"-0.197"
    0.02"-0.26"
    0.02"-0.275"
    0.020"-0.28"
    0.025"-0.25"
    0.027"-0.130"
    0.027"-0.15"
    0.027"-0.165"
    0.030"-0.090"
    0.03"-0.09"
    0.030"-0.105"
    0.030"-0.115"
    0.030"-1/8"
    0.030"-0.277"
    0.03"-0.312"
    0.03"-0.33"
    0.03"-0.512"
    0.031"-0.187"
    0.032"
    0.032"-0.062"
    0.032"-0.125"
    0.032"-0.375"
    0.032"-0.437"
    0.032"-0.5"
    0.039"-0.118"
    0.039"-0.126"
    0.039"-0.138"
    0.039"-0.157"
    0.039"-0.187"
    0.039"-0.236"
    0.039"-0.252"
    0.039"-0.276"
    0.039"-0.354"
    0.04"-0.08"
    0.04"-0.098"
    0.04"-0.118"
    0.04"-0.157"
    0.04"-0.275"
    0.04"-0.335"
    0.04"-0.354"
    0.04"-0.38"
    0.045"
    0.047"-0.219"
    0.047"-0.276"
    0.059"-0.079"
    0.059"-0.177"
    0.059"-0.354"
    0.06"-0.19"
    0.06"-0.25"
    0.06"-0.787"
    0.062"
    0.062"-0.125"
    0.062"-0.145"
    0.062"-0.25"
    0.062"-0.27"
    0.062"-0.272"
    0.062"-0.375"
    0.062"-0.437"
    0.062"-0.5"
    0.062"-0.625"
    0.062"-0.675"
    0.062"-0.75"
    0.062"-0.875"
    0.062"-1"
    0.062"-1 1/2"
    0.062"-2"
    0.063"
    0.063"-0.125"
    0.063"-0.200"
    0.063"-0.25"
    0.063"-0.625"
    0.063"-0.75"
    0.07"-0.25"
    0.075"-0.12"
    0.078"-0.375"
    0.079"-0.098"
    0.079"-0.157"
    0.079"-0.315"
    0.08"-0.12"
    0.080"-0.130"
    0.080"-0.14"
    0.08"-0.35"
    0.08"-0.625"
    0.083"-0.374"
    0.083"-0.375"
    0.083"-0.622"
    0.085"-0.135"
    0.085"-0.145"
    0.09"-0.16"
    0.092"-0.125"
    0.093"
    0.094"-0.156"
    0.094"-0.187"
    0.095"-0.32"
    0.098"-0.118"
    0.098"-0.197"
    0.099"-0.177"
    0.1"-0.14"
    0.1"-0.16"
    0.104"-0.239"
    0.105"-0.175"
    0.109"-0.312"
    0.115"
    0.115"-0.200"
    0.118"-0.138"
    0.118"-0.177"
    0.118"-0.236"
    0.118"-0.331"
    0.118"-0.354"
    0.119"-0.196"
    0.12"-0.16"
    0.121"
    1/8"
    0.125"-0.14"
    0.125"-0.187"
    0.125"-3/16"
    0.125"-0.188"
    0.125"-0.189"
    1/8"-0.200"
    0.125"-0.25"
    0.125"-0.331"
    0.125"-0.35"
    0.125"-0.375"
    0.126"-0.187"
    0.126"-0.189"
    0.126"-0.25"
    0.126"-0.331"
    0.128"-0.147"
    0.13"-0.17"
    0.130"-0.18"
    0.130"-0.225"
    0.135"
    0.138"-0.157"
    0.138"-0.197"
    0.14"-0.18"
    0.140"-0.200"
    0.14"-0.22"
    0.147"-0.167"
    0.150"-0.312"
    0.156"
    0.156"-0.219"
    0.156"-0.25"
    0.156"-0.375"
    0.157"-0.177"
    0.157"-0.312"
    0.157"-0.394"
    0.157"-0.472"
    0.157"-0.625"
    0.158"-0.236"
    0.159"-0.173"
    0.16"-0.19"
    0.16"-0.26"
    0.16"-0.28"
    0.16"-0.437"
    0.165"-0.185"
    0.165"-0.260"
    0.175"-0.245"
    0.175"-0.320"
    0.177"-0.197"
    0.177"-0.25"
    0.177"-0.256"
    0.177"-0.276"
    0.178"-0.255"
    0.18"-0.22"
    0.187"
    3/16"-0.25"
    0.188"-0.219"
    0.188"-0.25"
    0.188"-0.252"
    0.188"-0.312"
    0.188"-0.375"
    0.189"-0.252"
    0.19"-0.204"
    0.191"-0.209"
    0.197"-0.217"
    0.197"-0.255"
    0.197"-0.342"
    0.197"-0.354"
    0.197"-0.472"
    0.197"-0.551"
    0.197"-0.598"
    0.2"-0.260"
    0.2"-0.350"
    0.214"-0.437"
    0.218"-0.312"
    0.219"-0.281"
    0.219"-0.313"
    0.22"-0.26"
    0.221"-0.235"
    0.235"
    0.235"-0.297"
    0.236"-0.315"
    0.236"-0.394"
    0.236"-0.787"
    0.237"-0.314"
    1/4"
    0.25"-0.312"
    0.25"-0.374"
    0.25"-0.375"
    1/4"-0.438"
    0.25"-0.5"
    0.25"-0.875"
    0.251"-0.312"
    0.251"-0.375"
    0.251"-0.437"
    0.251"-0.5"
    0.252"-0.315"
    0.253"-0.272"
    0.256"-0.334"
    0.256"-0.354"
    0.26"-0.3"
    0.272"-0.292"
    0.28"-1/2"
    0.28"-0.5"
    0.284"-0.298"
    0.29"-0.3"
    0.295"-0.394"
    0.3"-0.34"
    0.305"-0.5"
    0.312"
    0.312"-5/8"
    5/16"-0.875"
    5/16"-1"
    0.313"-0.375"
    0.313"-0.5"
    0.313"-1.25"
    0.315"-0.433"
    0.316"-0.334"
    0.335"-0.394"
    0.335"-0.413"
    0.335"-0.433"
    0.338"-0.363"
    0.344"-0.406"
    0.346"-0.36"
    0.346"-0.5"
    0.35"-1/2"
    0.35"-0.625"
    0.354"-0.422"
    0.365"
    0.371"-0.5"
    0.374"-0.593"
    3/8"
    3/8"-7/16"
    3/8"-0.472"
    3/8"-0.5"
    3/8"-0.563"
    3/8"-0.625"
    0.376"-0.5"
    0.378"-0.397"
    0.409"-0.423"
    0.413"-0.511"
    0.415"-0.725"
    0.434"-0.59"
    0.437"-0.75"
    7/16"-9/16"
    0.438"-0.75"
    0.441"-0.459"
    0.452"-0.551"
    0.453"-0.551"
    0.455"-0.665"
    0.463"-0.488"
    0.469"-0.531"
    0.48"
    1/2"
    1/2"-0.625"
    1/2"-0.75"
    1/2"-0.781"
    1/2"-0.812"
    1/2"-1.125"
    1/2"-3"
    1/2"-3 1/2"
    0.501"-0.625"
    0.503"-0.522"
    0.531"-0.63"
    0.531"-0.748"
    0.534"-0.548"
    0.556"
    0.58"-0.875"
    0.588"-0.613"
    0.594"-0.656"
    0.61"-0.826"
    5/8"
    5/8"-0.75"
    5/8"-0.875"
    0.626"-0.75"
    0.628"-0.647"
    0.659"-0.673"
    0.687"-0.875"
    11/16"-0.75"
    0.695"-0.744"
    0.713"-0.738"
    0.719"-0.781"
    0.72"-0.814"
    0.728"-0.866"
    0.748"-0.984"
    3/4"
    3/4"-0.875"
    3/4"-1"
    3/4"-1 1/2"
    0.751"-0.875"
    0.753"-0.772"
    0.78"-1.375"
    0.812"-1.143"
    0.82"-0.869"
    0.82"-0.939"
    0.838"-0.863"
    0.844"-0.906"
    0.845"-0.939"
    0.846"-0.984"
    7/8"
    7/8"-1"
    7/8"-1.062"
    7/8"-1.125"
    7/8"-1 5/8"
    0.876"-1"
    0.878"-0.897"
    0.935"-0.984"
    0.935"-1.054"
    0.935"-1.179"
    15/16"-1"
    0.964"-1.063"
    0.969"-1.031"
    0.97"-1.064"
    0.97"-1.189"
    0.97"-1.304"
    0.985"-1.181"
    1"
    1"-1.125"
    1"-1.25"
    1"-1.375"
    1"-1 13/16"
    1.001"-1.125"
    1.043"-1.181"
    1.062"-1.25"
    1.094"-1.156"
    1 1/8"-1.25"
    1 1/8"-1.375"
    1 1/8"-2"
    1.126"-1.25"
    1.161"-1.26"
    1.182"-1.338"
    1 3/16"
    1.22"-1.314"
    1.22"-1.439"
    1.22"-1.554"
    1.24"-1.456"
    1 1/4"
    1 1/4"-1.375"
    1 1/4"-1 1/2"
    1 1/4"-1 5/8"
    1.32"-1.369"
    1.32"-1.564"
    1.32"-1.689"
    1.32"-1.939"
    1.339"-1.575"
    1.344"-1.406"
    1 3/8"
    1 3/8"-1 1/2"
    1 3/8"-1 5/8"
    1.378"-1.535"
    1.401"-1.495"
    1.401"-1.62"
    1.401"-2.12"
    1 7/16"-1 3/4"
    1 1/2"
    1 1/2"-1 5/8"
    1 1/2"-1 3/4"
    1 1/2"-2"
    1.575"-1.732"
    1 5/8"-1 7/8"
    1 5/8"-2 3/8"
    1 3/4"
    1 3/4"-2"
    1 13/16"-2 3/4"
    1 7/8"-2"
    1 7/8"-2 1/8"
    2"-2 1/8"
    2"-2 1/4"
    2"-2 13/16"
    2 1/8"-2 3/8"
    2 1/4"
    2 1/4"-2 1/2"
    2 3/8"-2 1/2"
    2 3/8"-2 5/8"
    2 1/2"-2 3/4"
    2.52"-2.756"
    2 5/8"-2 7/8"
    2 3/4"-3"
    3"-3 1/4"
    3 1/8"-3 3/8"
    3 3/16"
    3 1/4"-3 1/2"
    3 3/8"-3 1/2"
    3 1/2"-3 3/4"
    3 5/8"-3 7/8"
    4"-4 1/4"
    4 1/2"-4 3/4"
    5"-5 1/4"
    6"-6 1/4"
    0.000-5.000mm
    0.25-5mm
    0.400-2.800mm
    0.400-4mm
    0.400-4.900mm
    0.400-11.100mm
    0.500-2mm
    0.500-2.500mm
    0.500-3.000mm
    0.500-3.300mm
    0.500-4.500mm
    0.5-6.6mm
    0.500-7.100mm
    0.700-3.000mm
    0.700-3.300mm
    0.700-3.800mm
    0.700-4.200mm
    0.800-4mm
    0.800-4.800mm
    1-2.5mm
    1-3mm
    1.000-3.500mm
    1.000-4.500mm
    1.5-3mm
    1.5-3.5mm
    1.6-3mm
    1.600-5.100mm
    1.6-6mm
    1.6-10mm
    1.6-26mm
    2-3.300mm
    2-4mm
    2.5-4.5mm
    3-4.5mm
    3-5mm
    3.3-5.700mm
    3.5-5.5mm
    3.5-6.000mm
    3.8-7.900mm
    4-6mm
    4-7.000mm
    4-10.000mm
    4.200-6.600mm
    4.5-6mm
    4.5-6.5mm
    4.5-7.500mm
    4.5-8.100mm
    4.8-8.700mm
    5-6.5mm
    5-10.000mm
    5.1-8.900mm
    5.5-7mm
    6-8mm
    6.4-11.600mm
    6.5-8.5mm
    7-9mm
    7.900-16.300mm
    8-10mm
    8-11mm
    8-12mm
    8.5-10.5mm
    8.5-12mm
    8.5-12.5mm
    8.9-12.700mm
    9-11mm
    9-13mm
    9.5-12.5mm
    9.5-13.000mm
    10-14mm
    11-13mm
    11-15mm
    12-14mm
    12-16mm
    12.5-14.5mm
    12.5-16.5mm
    15-20mm
    16-18mm
    16-21mm
    20-22mm
    20-23mm
    20-25mm
    20.500-30.000mm
    21-25mm
    25-27mm
    25-28mm
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    40-42mm
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    50-53mm
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    Specifications Met
    IFI
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    DFARS (Defense Acquisition Regulations Supplement)
    DFARS (Defense Acquisition
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    Countersink Angle
    Countersink Angle
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    82°
    90°
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    120°
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    150°
    REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)
    REACH (Registration,
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