型號 : FT無屑(擠壓)絲攻
FT無屑(擠壓)絲攻 公制螺紋標稱 | 1級螺紋用下孔徑 JIS class 1 drill hole dia | 2級螺紋用下孔徑 JIS class 2 drill hole dia | ||||
R精度 | 最小~最大咬合率 | R精度 | 最小~最大咬合率 | |||
M2.5×0.45 | R2 | 2.25∼2.29 | (100∼80) | R4 | 2.28∼2.33 | (100∼75) |
M2.6×0.45 | 2 | 2.35∼2.39 | (100∼80) | 4 | 2.38∼2.43 | (100∼75) |
M3.0×0.5 | R3 | 2.74∼2.78 | (100∼80) | R5 | 2.76∼2.81 | (100∼75) |
M3.5×0.6 | 3 | 3.18∼3.21 | (100∼85) | 5 | 3.20∼3.26 | (100∼75) |
M4.0×0.7 | R4 | 3.63∼3.67 | (100∼85) | R6 | 3.65∼3.70 | (100∼85) |
M5.0×0.8 | 4 | 4.57∼4.62 | (100∼85) | 6 | 4.59∼4.66 | (100∼80) |
M6.0×1.0 | 4 | 5.45∼5.51 | (100∼85) | R7 | 5.48∼5.57 | (100∼80) |
M7.0×1.0 | 4 | 6.45∼6.51 | (100∼85) | 7 | 6.48∼6.57 | (100∼80) |
M8.0×1.25 | R5 | 7.31∼7.38 | (100∼85) | 7 | 7.34∼7.41 | (100∼85) |
M8.0×1.0 | R4 | 7.45∼7.51 | (100∼85) | 7 | 7.48∼7.57 | (100∼80) |
M10×1.5 | R5 | 9.16∼9.22 | (100∼90) | 7 | 9.18∼9.28 | (100∼85) |
M10×1.25 | 5 | 9.31∼9.38 | (100∼85) | 7 | 9.34∼9.41 | (100∼85) |
M10×1.0 | 5 | 9.46∼9.52 | (100∼85) | 7 | 9.48∼9.57 | (100∼80) |
M12×1.75 | 5 | 11.01∼11.08 | (100∼90) | R8 | 11.05∼11.15 | (100∼85) |
M12×1.5 | 5 | 11.16∼11.22 | (100∼90) | R7 | 11.18∼11.28 | (100∼85) |
M12×1.25 | 5 | 11.31∼11.38 | (100∼85) | 7 | 11.34∼11.41 | (100∼85) |
M12×1.0 | 5 | 11.46∼11.52 | (100∼85) | 7 | 11.48∼11.57 | (100∼80) |
M14×2.0 | R6 | 12.83∼12.95 | (100∼90) | R10 | 12.92∼13.04 | (100∼85) |
M14×1.5 | R5 | 13.16∼13.22 | (100∼90) | R9 | 13.21∼13.30 | (100∼85) |
M16×2.0 | R6 | 14.87∼14.95 | (100∼90) | R10 | 14.92∼15.04 | (100∼85) |
M16×1.5 | R5 | 15.16∼15.22 | (100∼90) | R9 | 15.21∼15.30 | (100∼80) |
M18×2.5 | R6 | 16.57∼16.67 | (100∼90) | R11 | 16.63∼16.78 | (100∼85) |
M18×1.5 | 6 | 17.17∼17.23 | (100∼90) | R10 | 17.22∼17.31 | (100∼85) |
M20×2.5 | 6 | 18.57∼18.67 | (100∼90) | R11 | 18.63∼18.78 | (100∼85) |
M20×1.5 | 6 | 19.17∼19.23 | (100∼90) | R10 | 19.22∼19.31 | (100∼85) |
標稱 | 3B級螺紋用下孔徑 JIS class 3B drill hole dia | 2B級螺紋用下孔徑 JIS class 2B drill hole dia | ||||
R精度 | 最小~最大咬合率 | R精度 | 最小~最大咬合率 | |||
No.4-40UNC | R3 | 2.50∼2.58 | (100∼70) | R5 | 2.52∼2.60 | (100∼70) |
No.5-40UNC | R3 | 2.83∼2.91 | (100∼70) | R5 | 2.86∼2.93 | (100∼70) |
No.5-44UNF | 3 | 2.87∼2.94 | (100∼70) | 4 | 2.88∼2.95 | (100∼70) |
No.6-32UNC | R3 | 3.06∼3.14 | (100∼75) | R5 | 3.09∼3.17 | (100∼75) |
No.6-40UNF | 3 | 3.16∼3.22 | (100∼75) | 5 | 3.19∼3.26 | (100∼70) |
No.8-32UNC | R4 | 3.74∼3.82 | (100∼75) | R6 | 3.76∼3.84 | (100∼75) |
No.8-36UNF | 4 | 3.79∼3.86 | (100∼75) | 5 | 3.80∼3.88 | (100∼75) |
No.10-24UNC | R4 | 4.24∼4.32 | (100∼80) | R6 | 4.26∼4.35 | (100∼80) |
No.10-32UNF | 4 | 4.40∼4.46 | (100∼80) | 5 | 4.41∼4.48 | (100∼80) |
No.12-24UNC | R4 | 4.90∼4.96 | (100∼85) | R6 | 4.92∼5.01 | (100∼80) |
No.12-28UNF | 4 | 4.99∼5.06 | (100∼80) | 5 | 5.00∼5.08 | (100∼80) |
1/4-20UNC | R4 | 5.64∼5.74 | (100∼80) | R6 | 5.66∼5.76 | (100∼80) |
1/4-28UNF | 4 | 5.85∼5.92 | (100∼80) | 5 | 5.86∼5.93 | (100∼80) |
5/16-18UNC | R5 | 7.15∼7.24 | (100∼85) | R7 | 7.18∼7.29 | (100∼80) |
5/16-24UNF | 5 | 7.36∼7.43 | (100∼85) | 6 | 7.38∼7.46 | (100∼80) |
3/8-16UNC | R5 | 8.63∼8.73 | (100∼85) | R7 | 8.66∼8.78 | (100∼80) |
3/8-24UNF | 5 | 8.95∼9.02 | (100∼85) | 6 | 8.96∼9.05 | (100∼80) |
7/16-14UNC | R5 | 10.06∼10.19 | (100∼85) | R7 | 10.11∼10.25 | (100∼80) |
7/16-20UNF | 5 | 10.41∼10.49 | (100∼85) | 7 | 10.44∼10.54 | (100∼80) |
1/2-13UNC | R6 | 11.60∼11.68 | (100∼90) | R8 | 11.62∼11.78 | (100∼80) |
1/2-20UNF | 5 | 12.00∼12.05 | (100∼90) | 7 | 12.02∼12.12 | (100∼80) |
9/16-12UNC | R8 | 13.11∼13.24 | (100∼85) | R10 | 13.14∼13.27 | (100∼85) |
9/16-18UNF | 7 | 13.53∼13.58 | (100∼90) | 9 | 13.55∼13.66 | (100∼80) |
5/8-11UNC | R8 | 14.58∼14.67 | (100∼90) | R11 | 14.62∼14.76 | (100∼85) |
5/8-18UNF | 7 | 15.11∼15.17 | (100∼90) | 9 | 15.14∼15.25 | (100∼80) |
3/4-10UNC | R9 | 17.63∼17.74 | (100∼90) | R12 | 17.67∼17.88 | (100∼80) |
3/4-16UNF | 7 | 18.18∼18.25 | (100∼90) | 10 | 18.22∼18.32 | (100∼85) |
7/8-9UNC | R9 | 20.64∼20.75 | (100∼90) | R12 | 20.68∼20.85 | (100∼85) |
7/8-14UNF | 8 | 21.23∼21.27 | (100∼95) | 11 | 21.27∼21.38 | (100∼85) |
1"-8UNC | R10 | 23.61∼23.74 | (100∼90) | R13 | 23.65∼23.84 | (100∼85) |
1"-12UNF | 9 | 24.24∼24.32 | (100∼90) | 12 | 24.28∼24.41 | (100∼85) |