McMaster-Carr logo
    System of Measurement
    System of Measurement
    Inch
    Metric
    Length
    Length
    1/4"
    5/16"
    3/8"
    7/16"
    1/2"
    9/16"
    5/8"
    11/16"
    3/4"
    13/16"
    7/8"
    0.88"
    15/16"
    1"
    1 1/16"
    1 1/8"
    1.16"
    1 3/16"
    1 1/4"
    1 5/16"
    1 3/8"
    1.4"
    1 7/16"
    1 1/2"
    1 9/16"
    1 5/8"
    1 11/16"
    1.7"
    1 45/64"
    1 3/4"
    1 13/16"
    1 7/8"
    1 15/16"
    2"
    2 1/16"
    2.1"
    2 1/8"
    2 3/16"
    2.2"
    2 1/4"
    2 5/16"
    2 3/8"
    2 7/16"
    2 1/2"
    2 9/16"
    2.6"
    2 5/8"
    2 11/16"
    2 3/4"
    2 13/16"
    2 7/8"
    2.9"
    2 15/16"
    3"
    3 1/16"
    3 1/8"
    3 3/16"
    3 1/4"
    3 5/16"
    3 3/8"
    3 7/16"
    3 1/2"
    3 9/16"
    3 5/8"
    3 11/16"
    3 3/4"
    3.8"
    3 13/16"
    3 7/8"
    3.9"
    3 15/16"
    4"
    4 1/64"
    4 1/16"
    4 1/8"
    4 3/16 "
    4 1/4"
    4 5/16"
    4 3/8"
    4 7/16"
    4 1/2"
    4 9/16"
    4 5/8"
    4 11/16"
    4.7"
    4 3/4"
    4.77"
    4 13/16"
    4 7/8"
    4 15/16"
    5"
    5 1/16"
    5.1"
    5 1/8"
    5 3/16"
    5 1/4"
    5 5/16"
    5 3/8"
    5 7/16"
    5 1/2"
    5 9/16"
    5 5/8"
    5 11/16"
    5 3/4"
    5.8"
    5 13/16"
    5.83"
    5 7/8"
    5 15/16"
    6"
    6 1/16"
    6 1/8"
    6 3/16"
    6 1/4"
    6 5/16"
    6 3/8"
    6 7/16"
    6 1/2"
    6 9/16"
    6.6"
    6 5/8"
    6 11/16 "
    6 3/4"
    6 13/16"
    6 7/8"
    7"
    7 1/16"
    7 1/8"
    7 3/16"
    7 1/4"
    7 5/16"
    7 3/8"
    7 7/16"
    7 1/2"
    7 5/8 "
    7 11/16"
    7 3/4"
    7 13/16"
    7 7/8"
    8"
    8 1/16"
    8 1/8"
    8 1/4"
    8 3/8"
    8 1/2"
    8 3/4"
    8 13/16"
    8 7/8"
    8 15/16"
    9"
    9 1/8"
    9 3/16"
    9.21"
    9 1/4 "
    9 3/8 "
    9 7/16"
    9 1/2"
    9 9/16"
    9 11/16"
    9 3/4"
    9 13/16"
    10"
    10 1/4 "
    10 5/16"
    10 3/8"
    10 1/2"
    10 5/8"
    10 3/4"
    10 7/8"
    10 15/16 "
    11"
    11 1/8"
    11 3/16"
    11 1/4"
    11 1/2"
    11 5/8"
    11 7/8"
    12"
    12 1/4"
    12 3/8"
    12 1/2"
    12 3/4 "
    13"
    13 1/4"
    13 3/8"
    13 7/16"
    13 1/2"
    13 5/8 "
    13 3/4"
    14"
    14 1/8"
    14 1/4"
    14 1/2"
    14 3/4"
    14 7/8"
    15"
    15 1/8"
    15 1/4"
    15 1/2"
    15 5/8"
    15 3/4"
    16"
    16 1/8"
    16 1/4"
    16 1/2"
    16 3/4"
    16 7/8"
    17"
    17 1/4"
    17 1/2"
    17 3/4"
    17 13/16"
    18"
    18 1/8"
    18 1/4"
    18 1/2"
    18 7/8"
    19"
    19 1/4"
    19 3/8"
    19 3/4"
    20"
    20 1/4"
    20 1/2"
    20 3/4"
    21"
    21 1/4"
    21 1/2"
    21 3/4"
    22"
    22 7/16"
    22 1/2"
    23"
    23 1/2"
    24"
    24 1/2"
    25"
    26"
    27"
    27 1/2"
    28"
    28 1/2"
    28 3/4"
    29"
    29 1/2"
    29 3/4 "
    30"
    30 1/2"
    32"
    33"
    34 1/2"
    35"
    36"
    36 1/2"
    37"
    37 1/4"
    38 1/2"
    3 1/4 ft.
    39 3/8"
    40"
    41"
    42"
    43"
    45"
    46"
    4ft.
    50"
    4 1/2 ft.
    56"
    5ft.
    66"
    72"
    74"
    78"
    78 3/4"
    6'8"
    8 ft.
    8 1/2 ft.
    9ft.
    118"
    10ft.
    144"
    14 ft.
    14 1/2ft.
    15ft.
    16 ft.
    18 ft.
    20ft.
    22 ft.
    24 ft.
    25 ft.
    27 ft.
    30ft.
    32 ft.
    35 ft.
    36ft.
    39 ft.
    40 ft.
    43 ft.
    44ft.
    45 ft.
    50ft.
    54ft.
    56 ft.
    59 ft.
    60ft.
    66ft.
    72 ft.
    75ft.
    76ft.
    99ft.
    100 ft.
    108ft.
    120 ft.
    125 ft.
    150 ft.
    200 ft.
    216ft.
    250 ft.
    300 ft.
    500 ft.
    1,000 ft.
    2,460 ft.
    20
    40
    50
    80
    1'2"
    ID
    ID
    default
    0" to 1"
    0" to 2 1/2"
    0" to 3 3/4"
    0.012"
    0.015"
    1/64" to 1/8"
    1/64" to 3/16"
    1/64" to 1/4"
    1/64" to 5/16"
    1/64" to 3/8"
    1/64" to 1/2"
    1/64" to 9/16"
    1/64" to 5/8"
    1/64" to 11/16"
    1/64" to 23/32"
    1/64" to 3/4"
    1/64" to 7/8"
    1/64" to 1"
    1/64" to 1 1/8"
    1/64" to 1 1/4"
    1/64" to 1 1/2"
    1/64" to 1 3/4"
    1/64" to 2"
    1/64" to 4"
    0.022"
    0.027"
    1/32" to 5/16"
    1/32" to 7/16"
    1/32" to 1/2"
    1/32" to 9/16"
    1/32" to 3/4"
    1/32" to 13/16"
    1/32" to 7/8"
    1/32" to 15/16"
    1/32" to 1"
    1/32" to 1 1/16"
    1/32" to 1 3/8"
    1/32" to 1 5/8"
    1/32" to 1 3/4"
    1/32" to 2"
    1/32" to 2 1/2"
    1/32" to 3"
    0.034"
    0.038"
    0.04"
    0.047"
    0.05"
    0.053"
    1/16"
    0.066"
    0.07"
    0.076"
    0.08"
    0.09"
    3/32"
    3/32" to 3/8"
    0.095"
    0.1"
    0.106"
    7/64"
    0.11"
    0.12"
    1/8"
    0.13"
    0.133"
    0.14"
    9/64"
    5/32"
    5/32" to 13/16"
    0.16"
    0.166"
    0.17"
    3/16"
    3/16" to 1/4"
    0.19"
    1/5"
    13/64"
    0.208"
    0.21"
    7/32"
    0.22"
    0.23"
    0.24"
    1/4"
    1/4" to 5/16"
    0.26"
    17/64"
    0.28"
    9/32"
    0.29"
    0.3"
    0.31"
    5/16"
    5/16" to 3/8"
    21/64"
    0.33"
    0.35"
    0.36"
    3/8"
    3/8" to 7/16"
    3/8" to 1/2"
    3/8" to 11/16"
    0.38"
    0.39"
    25/64"
    13/32"
    0.43"
    7/16"
    7/16" to 9/16"
    0.44"
    0.45"
    29/64"
    15/32"
    0.47"
    31/64"
    0.49"
    1/2"
    1/2" to 5/8"
    0.51"
    33/64"
    35/64"
    0.56"
    9/16"
    9/16" to 3/4"
    3/5"
    0.62"
    5/8"
    5/8" to 3/4"
    5/8" to 7/8"
    0.63"
    0.64"
    0.65"
    43/64"
    0.68"
    11/16"
    45/64"
    23/32"
    3/4"
    3/4" to 7/8"
    3/4" to 1 1/8"
    0.76"
    0.77"
    0.775"
    25/32"
    0.81"
    13/16"
    13/16" to 1"
    0.82"
    0.83"
    0.84"
    27/32"
    55/64"
    0.86"
    7/8"
    7/8" to 15/16"
    7/8" to 1"
    0.88"
    0.89"
    29/32"
    15/16"
    0.97"
    1"
    1" to 1 1/16"
    1" to 1 1/4"
    1" to 1 1/2"
    1.02"
    1.04"
    1 3/64"
    1.05"
    1.06"
    1 1/16"
    1.07"
    1.08"
    1 3/32"
    1.12"
    1 1/8"
    1 1/8" to 1 3/16"
    1.14"
    1 11/64"
    1.18"
    1 3/16"
    1.23"
    1 1/4"
    1 1/4" to 1 3/8"
    1 1/4" to 1 7/16"
    1 1/4" to 1 11/16"
    1 5/16"
    1.35"
    1 3/8"
    1 3/8" to 1 1/2"
    1.38"
    1.39"
    1.4"
    1.41"
    1.42"
    1 7/16"
    1.44"
    1.47"
    1 1/2"
    1 1/2" to 1 11/16"
    1.52"
    1.56"
    1 9/16"
    1.57"
    1.59"
    1.6"
    1.61"
    1.62"
    1 5/8"
    1 21/32"
    1 11/16"
    1.7"
    1 47/64"
    1 3/4"
    1 3/4" to 2"
    1 3/4" to 2 3/16"
    1 13/16"
    1 13/16" to 2"
    1.82"
    1.85"
    1 55/64"
    1.87"
    1 7/8"
    1 29/32"
    1 15/16"
    1 31/32"
    1.98"
    2"
    2" to 2 3/16"
    2.03"
    2.06"
    2 1/16"
    2.07"
    2.08"
    2.09"
    2.1"
    2 1/8"
    2 1/8" to 2 1/2"
    2.17"
    2 3/16"
    2.22"
    2 1/4"
    2 1/4" to 2 5/8"
    2 5/16"
    2.34"
    2 3/8"
    2 7/16"
    2 15/32"
    2.47"
    2 1/2"
    2 5/8"
    2 11/16"
    2.69"
    2.71"
    2.73"
    2 3/4"
    2 13/16"
    2 7/8"
    2 7/8" to 3 1/8"
    2.89"
    2 15/16"
    3"
    3 1/16"
    3.07"
    3.1"
    3 1/8"
    3 1/8" to 3 9/16"
    3 1/4"
    3 5/16" to 3 3/4"
    3.33"
    3.36"
    3.37"
    3 3/8"
    3 7/16"
    3 15/32"
    3 1/2"
    3 9/16"
    3 5/8"
    3 11/16"
    3 3/4"
    3 13/16" to 4 3/8"
    3 7/8"
    3 15/16"
    4"
    4.03"
    4 1/16"
    4.12"
    4 1/8"
    4 3/16"
    4 1/4"
    4.29"
    4 5/16"
    4.33"
    4 3/8"
    4 7/16"
    4 1/2"
    4 1/2" to 4 3/4"
    4 1/2" to 5"
    4 9/16"
    4 5/8"
    4 11/16"
    4 3/4"
    4 15/16"
    5"
    5 1/8"
    5 3/16"
    5 1/4"
    5 9/16"
    5 5/8"
    5 11/16"
    5 13/16"
    6"
    6.12"
    6 1/8"
    6 1/8" to 6 7/16"
    6 3/16"
    6 1/4"
    6.28"
    6 5/8"
    6 5/8" to 6 7/8"
    6 3/4"
    6 15/16"
    7 3/16"
    7 5/8"
    8"
    8 1/8"
    8 3/16"
    8 1/4"
    8 1/4" to 8 9/16"
    8 5/8"
    8 5/8" to 9"
    8 3/4"
    9 3/16" to 9 1/2"
    10"
    10 1/4" to 10 5/8"
    10 3/4"
    10 3/4" to 11 1/16"
    10 7/8"
    12 5/16" to 12 11/16"
    12 3/4"
    12 3/4" to 13 3/16"
    12 7/8"
    12 15/16"
    13"
    14"
    14" to 14 1/4"
    14 1/8"
    14 3/16"
    15"
    15 1/2" to 16 1/4"
    16"
    16 1/8"
    16 1/4"
    17"
    18"
    18 1/8"
    19"
    20"
    20 1/8"
    24"
    24 1/8"
    30 1/8"
    1 to 9mm
    1 to 11mm
    1 to 13.5mm
    1 to 16mm
    1 to 21mm
    1 to 29mm
    1 to 36mm
    1 to 48mm
    1 to 53mm
    1 to 69mm
    2 mm
    3 mm
    3 to 5mm
    4mm
    5 mm
    5 to 6 mm
    5 to 7mm
    6 mm
    6 to 8 mm
    6.4 mm
    7 to 10mm
    8 mm
    8 to 10 mm
    9 mm
    10 mm
    10 to 12 mm
    10 to 13 mm
    10 to 14mm
    10 to 17 mm
    11 mm
    11 to 14 mm
    12 mm
    13 mm
    13 to 16 mm
    14 mm
    14 to 19 mm
    14 to 20mm
    15 mm
    16 mm
    16 to 19 mm
    16 to 22 mm
    17 mm
    18 mm
    19 mm
    19 to 22 mm
    19 to 29 mm
    20 mm
    20 to 26mm
    21 mm
    21 to 25 mm
    22 mm
    22 to 24 mm
    22 to 25 mm
    24 mm
    25 mm
    25 to 27 mm
    25 to 32 mm
    25 to 38 mm
    25.4 mm
    26 to 35mm
    27 mm
    28 mm
    29 mm
    29 to 30 mm
    30 mm
    30 to 45mm
    31 mm
    32 mm
    32 to 35 mm
    32 to 37 mm
    32 to 43 mm
    33 mm
    34 mm
    35 mm
    35 to 38 mm
    37 mm
    38 mm
    38 to 43 mm
    40 mm
    40 to 60mm
    41 mm
    42 mm
    43 mm
    44 mm
    44 to 51 mm
    44 to 56 mm
    46 mm
    46 to 51 mm
    48 mm
    49 mm
    51 mm
    51 to 56 mm
    52 mm
    53 mm
    54 mm
    54 to 64 mm
    55 mm
    56 mm
    57 mm
    57 to 67 mm
    58 mm
    59 mm
    60 mm
    61 mm
    62 mm
    64 mm
    67 mm
    68 mm
    70 mm
    71 mm
    73 mm
    73 to 79 mm
    75 mm
    76 mm
    78 mm
    79 mm
    79 to 90 mm
    83 mm
    84 to 95 mm
    86 mm
    87 mm
    89 mm
    90 mm
    92 mm
    94 mm
    95 mm
    97 to 111 mm
    98 mm
    100 mm
    102 mm
    103 mm
    105 mm
    106 mm
    108 mm
    110 mm
    112 mm
    114 mm
    114 to 121 mm
    114 to 127 mm
    116 mm
    117 mm
    119 mm
    121 mm
    125 mm
    127 mm
    130 mm
    132 mm
    133 mm
    141 mm
    143 mm
    144 mm
    148 mm
    152 mm
    155 mm
    156 mm
    156 to 164 mm
    157 mm
    159 mm
    168 mm
    168 to 175 mm
    171 mm
    176 mm
    183 mm
    193 mm
    194 mm
    203 mm
    206 mm
    208 mm
    210 mm
    210 to 217 mm
    219 mm
    219 to 229 mm
    222 mm
    233 to 241 mm
    254 mm
    260 to 270 mm
    273 mm
    273 to 281 mm
    276 mm
    313 to 322 mm
    324 mm
    324 to 335 mm
    327 mm
    329 mm
    330 mm
    355 mm
    356 mm
    356 to 362 mm
    359 mm
    360 mm
    381 mm
    394 to 413 mm
    406 mm
    410 mm
    413 mm
    431 mm
    457 mm
    460 mm
    482 mm
    508 mm
    511 mm
    610 mm
    613 mm
    765 mm
    Height
    Height
    1/8"
    3/16"
    1/4"
    5/16"
    3/8"
    7/16"
    1/2"
    9/16"
    3/5"
    5/8"
    11/16"
    3/4"
    4/5"
    13/16"
    0.83"
    0.85"
    7/8"
    0.9"
    15/16"
    0.96"
    1"
    1.06"
    1 1/16"
    1 1/8"
    1 3/16"
    1 1/4"
    1 5/16"
    1.34"
    1 3/8"
    1.4"
    1 7/16"
    1 1/2"
    1 9/16"
    1 5/8"
    1.63"
    1.65"
    1 11/16"
    1.7"
    1 3/4"
    1 13/16"
    1 7/8"
    1.89"
    1 29/32"
    1 15/16"
    2"
    2 1/16"
    2.1"
    2 1/8"
    2 3/16"
    2.2"
    2 1/4"
    2 5/16"
    2 3/8"
    2 7/16"
    2 1/2"
    2 9/16"
    2.6"
    2 5/8"
    2.68"
    2 11/16"
    2.7"
    2 3/4"
    2 13/16"
    2 7/8"
    2 15/16"
    3"
    3 1/16"
    3 1/8"
    3 3/16"
    3 1/4"
    3.3"
    3 5/16"
    3 3/8"
    3.4"
    3 7/16"
    3 1/2"
    3 9/16"
    3 5/8"
    3 11/16"
    3 3/4"
    3 13/16"
    3 7/8"
    3 15/16"
    4"
    4 1/16"
    4 1/8"
    4 3/16"
    4 1/4"
    4.3"
    4 5/16"
    4 3/8"
    4 7/16"
    4 1/2"
    4 9/16"
    4 5/8"
    4 11/16"
    4 3/4"
    4 13/16"
    4 7/8"
    4 15/16"
    5"
    5 1/16"
    5 1/8"
    5 3/16"
    5 1/4"
    5 5/16"
    5 3/8"
    5 7/16"
    5 1/2"
    5 9/16"
    5 5/8"
    5 11/16"
    5 3/4"
    5 13/16"
    5 7/8"
    5 15/16"
    6"
    6 1/8"
    6 3/16"
    6 1/4"
    6 5/16"
    6 3/8"
    6 7/16"
    6 1/2"
    6 9/16"
    6 5/8"
    6 11/16"
    6 3/4"
    6 13/16"
    6 7/8"
    6 15/16"
    7"
    7 1/8"
    7 3/16"
    7 1/4"
    7 5/16"
    7 3/8"
    7 1/2"
    7 9/16"
    7 5/8"
    7 11/16"
    7 3/4"
    7 13/16"
    7 7/8"
    7 15/16"
    8"
    8 3/16"
    8 1/4"
    8 5/16"
    8 3/8"
    8 7/16"
    8 9/16"
    8 5/8"
    8 11/16"
    8 3/4"
    8 13/16"
    8 7/8"
    8 15/16"
    9"
    9 1/16"
    9 3/16"
    9 3/8"
    9 7/16"
    9 1/2"
    9 9/16"
    9 5/8"
    9 11/16"
    9 3/4"
    9 7/8"
    10 1/8"
    10 1/4"
    10 3/8"
    10 1/2"
    10 5/8"
    10 3/4"
    10 7/8"
    11"
    11 1/16"
    11 1/8"
    11 3/16"
    11 1/4"
    11 7/16"
    11 1/2"
    11 13/16"
    12"
    12 7/16"
    12 9/16"
    12 5/8"
    13"
    13 1/16"
    13 3/16"
    13 1/4"
    13 9/16"
    13 3/4"
    13 13/16"
    13 7/8"
    14 3/4"
    14 7/8"
    14 15/16"
    15"
    15 1/16"
    15 1/4"
    15 7/16"
    15 1/2"
    15 11/16"
    15 3/4"
    16"
    16 1/16"
    16 1/4"
    17"
    17 1/4"
    17 5/16"
    17 3/8"
    17 5/8"
    17 3/4"
    18"
    18 1/4"
    18 3/8"
    18 5/8"
    19"
    19 1/4"
    19 5/16"
    19 3/8"
    19 1/2"
    19 9/16"
    19 3/4"
    20"
    20 3/4"
    21"
    21 5/8"
    21 11/16"
    21 3/4"
    21 15/16"
    22"
    23"
    23 5/8"
    24"
    25"
    25 1/2"
    26 3/4"
    27 1/2"
    27 5/8"
    30"
    31 3/4"
    33 5/8"
    11 mm
    15 mm
    DFARS (Defense Acquisition Regulations Supplement)
    DFARS (Defense Acquisition
    Regulations Supplement)
    click to learn more about
    DFARS Specialty Metals
    COTS-Exempt
    learn more about DFARS Specialty Metals COTS-Exempt by pressing accesskey, i.
    DFARS Specialty Metals
    Compliant
    learn more about DFARS Specialty Metals Compliant by pressing accesskey, i.
    RoHS (Restriction of Hazardous Substances)
    RoHS (Restriction of
    Hazardous Substances)
    RoHS Compliant
    RoHS Compliant with
    Exemptions
    REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)
    REACH (Registration,
    Evaluation, Authorization
    and Restriction of Chemicals)
    REACH Compliant
    For Use Outdoors
    For Use Outdoors
    Yes
    No
    Wire Duct Style
    Wire Duct Style
    SlottedSolid