ねじ下穴径参考資料153ドリル径 ユニファイ 並目ねじ 0.2 No.1- 64 UNC 0.8 0.2 No.2- 56 UNC 0.9 0.2 No.3- 48 UNC 1.0 0.2 No.4- 40 UNC 1.2 0.2 No.5- 40 UNC 1.4 0.2 No.6- 32 UNC 1.6 0.2 No.8- 32 UNC 1.75 0.2 No.10- 24 UNC 1.95 0.35 No.12- 24 UNC 2.2 0.35 1/4- 20 UNC 2.7 0.35 5/16- 18 UNC 3.2 0.5 3/18- 16 UNC 3.5 0.5 7/16- 14 UNC 4.0 0.5 1/2- 13 UNC 4.5 0.5 9/16- 18 UNC 5.0 0.75 5/8- 11 UNC 5.3 0.75 3/4- 10 UNC 6.3 0.1 1/8- 9 UNC 7.0 0.75 1 - 8 UNC 7.3 1 1 1/8- 7 UNC 8.0 0.75 1 1/4- 7 UNC 8.3 1.25 1 3/8- 6 UNC 8.8 1 1 1/2- 6 UNC 9.0 0.75 1 3/4- 5 UNC 9.3 1 2 - 4.5 UNC 10.0 0.75 2 1/4- 4.5 UNC 10.3 1.5 2 1/2- 4 UNC 10.5 1.25 2 3/4 4 UNC 10.8 1 3 - 4 UNC 11.0 1.5 3 1/4- 4 UNC 12.5 1 3 1/2- 4 UNC 13.0 1.5 3 3/4- 4 UNC 13.5 1 4 - 4 UNC14.0 1.5 14.5 ドリル径 ユニファイ 細目ねじ No.0- 80 UNF 1.5 No.1- 72 UNF 1.8 No.2- 64 UNF 2.1 No.3- 56 UNF 2.3 No.4- 48 UNF 2.6 No.5- 44 UNF 2.8 No.6- 40 UNF 3.4 No.8- 36 UNF 3.8 No.10- 32 UNF 4.5 No.12- 28 UNF 5.1 1/4- 28 UNF 6.6 5/16- 24 UNF 8.0 3/8- 24 UNF 9.3 7/16- 20 UNF 10.8 1/2- 20 UNF 12.2 9/16- 18 UNF 13.5 5/8- 18 UNF 16.5 3/4- 16 UNF 19.5 7/8- 14 UNF 22.0 7/8- 18 UNF 25.0 1 1/8- 12 UNF 28.0 1 1/4- 12 UNF 30.5 1 3/8- 12 UNF 33.5 1 1/2- 12 UNF39.0 45.0 51.0 57.0 63.0 69.5 76.0 82.0 89.0 95.0ドリル径 1.2 1.5 1.8 2.1 2.4 2.7 2.9 3.5 4.1 4.6 5.5 6.9 8.5 9.8 11.4 12.8 14.5 17.5 20.4 23.2 26.5 29.5 32.7 36.0メートル 並目ねじ ドリル径 メートル 細目ねじ M 1 M 1 × 0.75 M 1.1 M 1.1 × 0.85 M 1.2 M 1.2 × 0.95 M 1.4 M 1.4 × 1.1 M 1.6 M 1.6 × 1.3 M 1.8 M 1.8 × 1.5 M 2 M 2 × 1.6 M 2.2 M 2.2 × 1.8 M 2.5 M 2.5 × 2.1 M 3 M 3 × 2.5 M 3.5 M 3.5 × 2.9 M 4 M 4 × 3.3 M 4.5 M 4.5 × 3.8 M 5 M 5 × 4.2 M 6 M 5.5 × 5.0 M 7 M 6 × 6.0 M 8 M 7 × 6.8 M 9 M 8 × 7.8 M 10 M 9 × 8.5 M 11 M 9 × 9.5 M 12 M 9 × 10.3 M 14 M 10 × 12.0 M 16 M 10 × 14.0 M 18 M 10 × 15.5 M 20 M 11 × 17.5 M 22 M 11 × 19.5 M 24 M 12 × 21.0 M 27 M 12 × 24.0 M 30 M 12 × 26.5 M 33 M 14 × 29.5 M 36 M 14 × 32.0 M 39 M 15 × 35.0 M 42 M 16 × 37.5 M 45 M 16 × 40.5 M 4843.0ねじ下穴径
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