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ねじ径×ピッチ 最小下穴径 最大下穴径(%)
(ひっかかり率) 1級 2級
M1.0x0.25 0.73 (100%) 0.77 (85%) 0.78 (80%)
M1.1x0.25 0.83 (〃) 0.87 (〃) 0.88 (〃)
M1.2x0.25 0.93 (〃) 0.97 (〃) 0.98 (〃)
M1.4x0.3 1.08 (〃) 1.12 (〃) 1.14 (〃)
M1.6x0.35 1.22 (〃) 1.30 (80%) 1.32 (75%)
M1.7x0.35 1.32 (〃) 1.40 (75%) 1.40 (〃)
M1.8x0.35 1.42 (〃) 1.50 (80%) 1.52 (〃)
M2.0x0.4 1.57 (〃) 1.65 (〃) 1.65 (80%)
M2.2x0.45 1.71 (〃) 1.81 (〃) 1.83 (75%)
M2.3x0.4 1.87 (〃) 1.97 (75%) 1.97 (〃)
M2.5x0.45 2.01 (〃) 2.11 (80%) 2.13 (〃)
M2.6x0.45 2.11 (〃) 2.23 (75%) 2.23 (〃)
M3.0x0.6 2.35 (〃) 2.42 (90%) 2.42 (90%)
M3.0x0.5 2.46 (〃) 2.57 (80%) 2.59 (75%)
M3.5x0.6 2.85 (〃) 2.95 (85%) 3.01 (〃)
M4.0x0.75 3.19 (〃) 3.23 (95%) 3.31 (85%)
M4.0x0.7 3.24 (〃) 3.36 (85%) 3.39 (80%)
M4.5x0.75 3.69 (〃) 3.81 (〃) 3.85 (〃)
M5.0x0.9 4.03 (〃) 4.07 (95%) 4.17 (85%)
M5.0x0.8 4.13 (〃) 4.26 (85%) 4.31 (80%)
M5.5x0.9 4.53 (〃) 4.57 (95%) 4.67 (85%)
M6.0x1.0 4.92 (〃) 5.08 (85%) 5.13 (80%)
M7.0x1.0 5.92 (〃) 6.08 (〃) 6.13 (〃)
M8.0x1.25 6.65 (〃) 6.85 (〃) 6.85 (85%)
M9.0x1.25 7.65 (〃) 7.85 (〃) 7.85 (〃)
M10.0x1.5 8.38 (〃) 8.54 (90%) 8.62 (〃)
M11.0x1.5 9.38 (〃) 9.54 (〃) 9.62 (〃)
M12.0x1.75 10.10 (〃) 10.30 (〃) 10.40 (〃)
M14.0x2.0 11.80 (〃) 12.10 (〃) 12.20 (〃)
M16.0x2.0 13.80 (〃) 14.10 (〃) 14.20 (〃)
M18.0x2.5 15.30 (〃) 15.60 (〃) 15.70 (〃)
M20.0x2.5 17.30 (〃) 17.60 (〃) 17.70 (〃)
M22.0x2.5 19.30 (〃) 19.60 (〃) 19.70 (〃)
M24.0x3.0 20.80 (〃) 21.10 (〃) 21.20 (〃)
M27.0x3.0 23.80 (〃) 24.10 (〃) 24.20 (〃)
M30.0x3.5 26.20 (〃) 26.60 (〃) 26.60 (90%)
M33.0x3.5 29.20 (〃) 29.60 (〃) 29.60 (〃)
M36.0x4.0 31.70 (〃) 32.10 (〃) 32.10 (〃)
M39.0x4.0 34.70 (〃) 35.10 (〃) 35.10 (〃)
M42.0x4.5 37.10 (〃) 37.60 (〃) 37.60 (〃)
M45.0x4.5 40.10 (〃) 40.60 (〃) 40.60 (〃)
M48.0x5.0 42.60 (〃) 43.10 (〃) 43.10 (〃)
メートル細目    このページのトップへ >
ねじ径×ピッチ 最小下穴径 最大下穴径(%)
(ひっかかり率) 1級 2級
M2.5x0.35 2.12 (100%) 2.20 (80%) 2.22 (75%)
M3.0x0.35 2.62 (〃) 2.70 (〃) 2.72 (〃)
M3.5x0.35 3.12 (〃) 3.20 (〃) 3.22 (〃)
M4.0x0.5 3.46 (〃) 3.57 (〃) 3.59 (〃)
M5.0x0.5 4.46 (〃) 4.57 (〃) 4.59 (〃)
M5.5x0.5 4.96 (〃) 5.07 (〃) 5.09 (〃)
M6.0x0.75 5.19 (〃) 5.31 (85%) 5.35 (80%)
M7.0x0.75 6.19 (〃) 6.31 (〃) 6.35 (〃)
M8.0x1.0 6.92 (〃) 7.08 (〃) 7.13 (〃)
M8.0x0.75 7.19 (〃) 7.31 (〃) 7.35 (〃)
M9.0x1.0 7.92 (〃) 8.08 (〃) 8.13 (〃)
M9.0x0.75 8.19 (〃) 8.31 (〃) 8.35 (〃)
M10.0x1.25 8.65 (〃) 8.85 (〃) 8.85 (85%)
M10.0x1.0 8.92 (〃) 9.08 (〃) 9.13 (80%)
M10.0x0.75 9.19 (〃) 9.31 (〃) 9.35 (〃)
M11.0x1.0 9.92 (〃) 10.08 (〃) 10.13 (〃)
M11.0x0.75 10.19 (〃) 10.31 (〃) 10.35 (〃)
M12.0x1.5 10.38 (〃) 10.54 (90%) 10.62 (85%)
M12.0x1.25 10.65 (〃) 10.85 (85%) 10.85 (〃)
M12.0x1.0 10.92 (〃) 11.08 (〃) 11.13 (80%)
M14.0x1.5 12.38 (〃) 12.54 (90%) 12.62 (85%)
M14.0x1.0 12.92 (〃) 13.08 (85%) 13.13 (80%)
M15.0x1.5 13.38 (〃) 13.54 (90%) 13.62 (85%)
M15.0x1.0 13.92 (〃) 14.08 (85%) 14.13 (80%)
M16.0x1.5 14.38 (〃) 14.54 (90%) 14.62 (85%)
M16.0x1.0 14.92 (〃) 15.08 (85%) 15.13 (80%)
M17.0x1.5 15.38 (〃) 15.54 (90%) 15.62 (85%)
M17.0x1.0 15.92 (〃) 16.08 (85%) 16.13 (80%)
M18.0x2.0 15.80 (〃) 16.10 (90%) 16.20 (85%)
M18.0x1.5 16.38 (〃) 16.54 (〃) 16.62 (〃)
M18.0x1.0 16.92 (〃) 17.08 (85%) 17.13 (80%)
M20.0x2.0 17.80 (〃) 18.10 (90%) 18.20 (85%)
M20.0x1.5 18.38 (〃) 18.54 (〃) 18.62 (〃)
M20.0x1.0 18.92 (〃) 19.08 (85%) 19.13 (80%)
M22.0x2.0 19.80 (〃) 20.10 (90%) 20.20 (85%)
M22.0x1.5 20.38 (〃) 20.54 (〃) 20.62 (〃)
M22.0x1.0 20.92 (〃) 21.08 (85%) 21.13 (80%)
M24.0x2.0 21.80 (〃) 22.10 (90%) 22.20 (85%)
M24.0x1.5 22.38 (〃) 22.54 (〃) 22.62 (〃)
M24.0x1.0 22.92 (〃) 23.08 (85%) 23.13 (80%)
M25.0x2.0 22.80 (〃) 23.10 (90%) 23.20 (85%)
M25.0x1.5 23.38 (〃) 23.54 (〃) 23.62 (〃)
M25.0x1.0 23.92 (〃) 24.08 (85%) 24.13 (80%)
M26.0x1.5 24.38 (〃) 24.54 (90%) 24.62 (85%)
M27.0x2.0 24.80 (〃) 25.10 (〃) 25.20 (〃)
M27.0x1.5 25.38 (〃) 25.54 (90%) 25.62 (85%)
M27.0x1.0 25.92 (〃) 26.08 (85%) 26.13 (80%)
M28.0x2.0 25.80 (〃) 26.10 (90%) 26.20 (85%)
M28.0x1.5 26.38 (〃) 26.54 (〃) 26.62 (〃)
M28.0x1.0 26.92 (〃) 27.08 (85%) 27.13 (80%)
M30.0x3.0 26.80 (〃) 27.10 (90%) 27.20 (85%)
M30.0x2.0 27.80 (〃) 28.10 (〃) 28.20 (〃)
M30.0x1.5 28.38 (〃) 28.54 (〃) 28.62 (〃)
M30.0x1.0 28.92 (〃) 29.08 (85%) 29.13 (80%)
M32.0x2.0 29.80 (〃) 30.10 (90%) 30.20 (85%)
M32.0x1.5 30.38 (〃) 30.54 (〃) 30.62 (〃)
M33.0x3.0 29.80 (〃) 30.10 (〃) 30.20 (〃)
M33.0x2.0 30.80 (〃) 31.10 (〃) 31.20 (〃)
M33.0x1.5 31.38 (〃) 31.54 (〃) 31.62 (〃)
M35.0x1.5 33.38 (〃) 33.54 (〃) 33.62 (〃)
M36.0x3.0 32.80 (〃) 33.10 (〃) 33.20 (〃)
M36.0x2.0 33.80 (〃) 34.10 (〃) 34.20 (〃)
M36.0x1.5 34.38 (〃) 34.54 (〃) 34.62 (〃)
M38.0x1.5 36.38 (〃) 36.54 (〃) 36.62 (〃)
M39.0x3.0 35.80 (〃) 36.10 (〃) 36.20 (〃)
M39.0x2.0 36.80 (〃) 37.10 (〃) 37.20 (〃)
M39.0x1.5 37.38 (〃) 37.54 (〃) 37.62 (〃)
M40.0x3.0 36.80 (〃) 37.10 (〃) 37.20 (〃)
M40.0x2.0 37.80 (〃) 38.10 (〃) 38.20 (〃)
M40.0x1.5 38.38 (〃) 38.54 (〃) 38.62 (〃)
M42.0x4.0 37.70 (〃) 38.10 (〃) 38.10 (90%)
M42.0x3.0 38.80 (〃) 39.10 (〃) 39.20 (85%)
M42.0x2.0 39.80 (〃) 40.10 (〃) 40.20 (〃)
M42.0x1.5 40.38 (〃) 40.54 (〃) 40.62 (〃)
M45.0x4.0 40.70 (〃) 41.10 (〃) 41.10 (90%)
M45.0x3.0 41.80 (〃) 42.10 (〃) 42.20 (85%)
M45.0x2.0 42.80 (〃) 43.10 (〃) 43.20 (〃)
M45.0x1.5 43.38 (〃) 44.54 (〃) 43.62 (〃)
M48.0x4.0 43.70 (〃) 44.10 (〃) 44.10 (90%)
M48.0x3.0 44.80 (〃) 45.10 (〃) 45.20 (85%)
M48.0x2.0 45.80 (〃) 46.10 (〃) 46.20 (〃)
M48.0x1.5 46.38 (〃) 46.54 (〃) 46.62 (〃)
M50.0x3.0 46.80 (〃) 47.10 (〃) 47.20 (〃)
M50.0x2.0 47.80 (〃) 48.10 (〃) 48.20 (〃)
M50.0x1.5 48.38 (〃) 48.54 (〃) 48.62 (〃)
ウイット    このページのトップへ >
ねじ径×ピッチ 最小下穴径 ねじ下ぎりの直径
(ひっかかり率) A列(硬質材) B列(軟質材)
W 1/8-40 2.456 (88.4%) 2.65 2.6
  5/32-32 3.070 (〃) 3.25 3.2
  3/16-24 3.564 (〃) 3.75 3.7
  1/4-20 4.914 (88.3%) 5.1 5
  5/16-18 6.340 (88.4%) 6.6 6.5
  3/8-16 7.733 (88.2%) 8 7.9
  7/16-14 9.048 (88.8%) 9.4 9.3
  1/2-12 10.310 (88.2%) 10.7 10.5
  9/16-12 11.898 (〃) 12.3 12
  5/8-11 13.257 (88.5%) 13.7 13.5
  3/4-10 16.178 (88.3%) 16.7 16.5
  7/8- 9 19.031 (88.4%) 19.5 19.3
  1 - 8 21.814 (88.2%) 22.4 22
  1 1/8- 7 24.469 (88.4%) 25 24.8
  1 1/4- 7 27.644 (〃) 28.3 28
  1 3/8- 6 30.123 (88.6%) 30.5 30.3
  1 1/2- 6 33.298 (〃) 33.8 33.5
  1 5/8- 5 35.529 (88.3%) 36 35.7
  1 3/4- 5 38.704 (〃) 39.2 39
  1 7/8- 4 1/2 41.237 (88.4%) 41.8 41.5
  2 - 4 1/2 44.412 (〃) 45 44.7
ユニファイ並目    このページのトップへ >
ねじ径×ピッチ 最小下穴径 最大下穴径(%)
(ひっかかり率) 3B 2B 1B
No. 1-64 UNC 1.42 (100%) 1.57 (65%) 1.57 (65%)
  2-56 UNC 1.69 (〃) 1.86 (〃) 1.86 (〃)
  3-48 UNC 1.94 (〃) 2.14 (〃) 2.14 (〃)
  4-40 UNC 2.16 (〃) 2.36 (70%) 2.36 (70%)
  5-40 UNC 2.49 (〃) 2.69 (〃) 2.69 (〃)
  6-32 UNC 2.65 (〃) 2.86 (70%) 2.86 (75%)
  8-32 UNC 3.31 (〃) 3.52 (〃) 3.52 (〃)
  10-24 UNC 3.68 (〃) 3.91 (80%) 3.91 (80%)
  12-24 UNC 4.34 (〃) 4.51 (85%) 4.57 (〃)
  1/4-20 UNC 4.98 (〃) 5.25 (80%) 5.25 (〃)
  5/16-18 UNC 6.41 (〃) 6.64 (85%) 6.72 (〃)
  3/8-16 UNC 7.81 (〃) 8.06 (〃) 8.15 (〃)
  7/16-14 UNC 9.15 (〃) 9.40 (〃) 9.50 (〃)
  1/2-13 UNC 10.60 (〃) 10.80 (90%) 11.00 (〃)
  9/16-12 UNC 12.00 (〃) 12.30 (85%) 12.30 (85%)
  5/8-11 UNC 13.40 (〃) 13.60 (90%) 13.80 (〃)
  3/4-10 UNC 16.30 (〃) 16.60 (〃) 16.80 (80%)
  7/8- 9 UNC 19.20 (〃) 19.50 (〃) 19.60 (85%)
  1 - 8 UNC 22.00 (〃) 22.30 (〃) 22.50 (〃)
  1 1/8- 7 UNC 24.60 (〃) 25.00 (〃) 25.20 (〃)
  1 1/4- 7 UNC 27.80 (〃) 28.20 (〃) 28.40 (〃)
  1 3/8 - 6 UNC 30.30 (〃) 30.80 (〃) 31.00 (〃)
  1 1/2- 6 UNC 33.50 (〃) 34.00 (〃) 34.20 (〃)
  1 3/4- 5 UNC 39.00 (〃) 39.50 (〃) 39.80 (〃)
  2 - 4 1/2 UNC 44.70 (〃) 45.30 (〃) 45.30 (90%)
ユニファイ細目    このページのトップへ >
ねじ径×ピッチ 最小下穴径 最大下穴径(%)
(ひっかかり率) 3B 2B 1B
No. 0-80 UNF 1.18 (100%) 1.30 (65%) 1.30 (65%)
  1-72 UNF 1.47 (〃) 1.61 (〃) 1.61 (〃)
  2-64 UNF 1.75 (〃) 1.90 (〃) 1.90 (〃)
  3-56 UNF 2.02 (〃) 2.17 (70%) 2.17 (70%)
  4-48 UNF 2.27 (〃) 2.44 (〃) 2.44 (〃)
  5-44 UNF 2.55 (〃) 2.74 (〃) 2.74 (〃)
  6-40 UNF 2.82 (〃) 2.99 (75%) 3.02 (〃)
  8-36 UNF 3.40 (〃) 3.59 (〃) 3.59 (75%)
  10-32 UNF 3.97 (〃) 4.14 (80%) 4.14 (80%)
  12-28 UNF 4.50 (〃) 4.70 (〃) 4.70 (〃)
  1/4-28 UNF 5.37 (〃) 5.56 (〃) 5.56 (〃)
  5/16-24 UNF 6.79 (〃) 6.96 (85%) 7.02 (〃)
  3/8-24 UNF 8.38 (〃) 8.55 (〃) 8.61 (〃)
  7/16-20 UNF 9.74 (〃) 9.94 (〃) 10.01 (〃)
  1/2-20 UNF 11.33 (〃) 11.46 (90%) 11.60 (〃)
  9/16-18 UNF 12.76 (〃) 12.91 (〃) 13.07 (〃)
  5/8-18 UNF 14.35 (〃) 14.50 (〃) 14.65 (〃)
  3/4-16 UNF 17.33 (〃) 17.50 (〃) 17.59 (85%)
  7/8-14 UNF 20.30 (〃) 20.40 (95%) 20.60 (〃)
  1 -12 UNF 23.10 (〃) 23.30 (90%) 23.50 (〃)
  1 1/8-12 UNF 26.30 (〃) 26.50 (〃) 26.70 (80%)
  1 1/4-12 UNF 29.50 (〃) 29.70 (〃) 29.90 (〃)
  1 3/8-12 UNF 32.60 (〃) 32.70 (95%) 33.00 (85%)
  1 1/2-12 UNF 35.80 (〃) 36.00 (90%) 36.20 (〃)
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