公制螺纹钻底孔用钻头直径尺寸 文档.doc

螺紋下孔徑表公制粗牙螺紋 JIS B 0209-1982(單位：mm)螺纹尺寸 钻头直径 螺纹下孔徑 內螺紋小徑 最小直径 最大直径M 1 0.25 0.75 0.78 (80%) 0.729 0.7851.1 0.25 0.85 0.88 (80%) 0.829 0.8852 J4 W- F+ D. A) p1.2 0.25 0.95 0.98 (80%) 0.929 0.985$ L3 8 G+ I; 0 1.4 0.3 1.1 1.14 (80%) 1.075 1.1421.6 0.35 1.25 1.32 (75%) 1.221 1.321: y. y/ v4 1 * r5 d1.8 0.35 1.45 1.52 (75%) 1.421 1.5212 0.4 1.6 1.65 (80%) 1.567 1.679% 7 P1 2 f# z. g9 w2.2 0.45 1.75 1.83 (75%) 1.713 1.838 2.5 0.45 2.1 2.13 (75%) 2.013 2.138 3 0.5 2.5 2.59 (75%) 2.459 2.5993.5 0.6 2.9 3.01 (75%) 2.850 3.0109 X% j _3 k: M/ H9 F# H6 t4 0.7 3.3 3.39 (80%) 3.242 3.4223 + h: b4 0 w+ m4.5 0.75 3.8 3.85 (80%) 3.688 3.878- k ? : r- Y+ P7 U/ O3 F: X5 0.8 4.2 4.31 (80%) 4.134 4.3346 1 5 5.13 (80%) 4.917 5.153. 2 ?/ |: q! S3 D7 1 6 6.13 (80%) 5.917 6.153, 1 M8 e2 Y; M3 j: M; U8 1.25 6.8 6.85 (85%) 6.647 6.9129 1.25 7.8 7.85 (85%) 7.647 7.9122 c# f% 8 K1 f: X4 X10 1.5 8.5 8.62 (85%) 8.376 8.67611 1.5 9.5 9.62 (85%) 9.376 9.676) Z, o( 2 o0 a3 H+ . A9 m12 1.75 10.3 10.40 (85%) 10.106 10.44114 2 12 12.2(85%) 11.835 12.210& , P. * m7 D4 u0 m3 Z0 p- Q! E u16 2 14 14.2(85%) 13.835 14.21018 2.5 15.5 15.7(85%) 15.294 15.74420 2.5 17.5 17.7(85%) 17.294 17.744,22 2.5 19.5 19.2(85%) 19.294 19.74424 3 21 21.2(85%) 20.752 21.25227 3 24 24.2(85%) 23.752 24.252.30 3.5 26.5 26.6(90%) 26.211 26.77133 3.5 29.5 29.6(90%) 29.211 29.77136 4 32 32.1(90%) 31.670 32.270: R. 2 yQ& t! K39 4 35 35.1(90%) 34.670 35.270;42 4.5 37.5 37.6(90%) 37.129 37.7998 n a# O, w2 G v# H3 Y45 4.5 40.5 40.6(90%) 40.129 40.799, w: L2 l% M5 y3 N0 d* I48 5 43 43.1(90%) 42.587 43.297/ A8 _2 S/ h1 # s/ E- w2 g註(1)M1.4以下等級：5H、M1.6以上等級：6H (2)基於JIS B 0209-1982標準6 h& j3 ! O* Z9 公制細牙螺紋-01 JIS B 0211-1982(單位：mm)螺纹尺寸 钻头直径 螺纹下孔徑 內螺紋小徑 最小直径 最大直径 i9 E# A( N# M 2.5 0.35 2.2 2.22 (75%) 2.121 2.221$ r% q K$ g+ C% u3 0.35 2.7 2.72 (75%) 2.621 2.721-3.5 0.35 3.2 3.22 (75%) 3.121 3.2214 0.5 3.5 3.59 (75%) 3.459 3.599# U5 y3 H8 g/ S. j4.5 0.5 4.0 4.09 (75%) 3.959 4.099U4 6 X1 V: 7 G/ C/ K- y5 0.5 4.5 4.59 (75%) 4.459 4.5995.5 0.5 5 5.09 (75%) 4.959 5.099+ C: H: c I$ K L7 W5 i, s& E6 0.75 5.3 5.35 (80%) 5.188 5.378# A1 | 8 g4 j9 S7 0.75 6.3 6.35 (80%) 6.188 6.3788 1 7 7.13 (80%) 6.917 7.153:8 0.75 7.3 7.35 (80%) 7.188 7.3789 1 8 8.13 (80%) 7.917 8.1539 0.75 8.3 8.35 (80%) 8.188 8.37810 1.25 8.8 8.85 (85%) 8.647 8.91210 1 9 9.13 (80%) 8.917 9.15310 0.75 9.3 9.35 (80%) 9.188 9.378% R/ w6 ?( S+ Q6 C$ s* c4 x11 1 10 10.13 (80%) 9.917 10.153 E; S, I6 B0 T% v3 U* k11 0.75 10.3 10.35 (80%) 10.188 10.37812 1.5 10.5 10.62 (85%) 10.376 10.67612 1.25 10.8 10.85 (85%) 10.647 10.912, ?. U% k. # T7 s2 Q3 q2 K12 1 11 11.13 (80%) 10.917 11.15314 1.5 12.5 12.62 (85%) 12.376 12.676& q1 : X- k) , o14 1 13 13.13 (80%) 12.917 13.153( W7 Y; M, ?9 F/ & E- H15 1.5 13.5 13.62 (85%) 13.376 13.67615 1 14 14.13 (80%) 13.917 14.153; J/ w& i5 5 s16 1.5 14.5 14.62 (85%) 14.376 14.676# J3 d6 ! g, C16 1 15 15.13 (80%) 14.917 15.1531 k+ U, s3 9 r4 W2 e+ N+ e P17 1.5 15.5 15.62 (85%) 15.376 15.676& k8 l, A! 2 W% l0 I17 1 16 16.13 (80%) 15.917 16.15318 2 16 16.2 (85%) 15.835 16.21018 1.5 16.5 16.62 (85%) 16.376 16.676 f d9 4 k8 S9 E; ) K18 1 17 17.13 (80%) 16.917 17.153! + n% B4 a3 c . 20 2 18 18.2(85%) 17.835 18.21020 1.5 18.5 18.62 (85%) 18.376 18.67620 1 19 19.13 (80%) 18.917 19.15322 2 20 20.2 (85%) 19.835 20.21022 1.5 20.5 20.62 (85%) 20.376 20.676& q8 X# O ?! 1 22 1 21 21.13 (80%) 20.917 21.15324 2 22 22.2 (85%) 21.835 22.21024 1.5 22.5 22.62 (85%) 22.376 22.676* N6 x1 p( |% J/ % j8 o& ?24 1 23 23.13 (80%) 22.917 23.15325 2 23 23.2(85%) 22.835 23.21025 1.5 23.5 23.62 (85%) 23.376 23.67625 1 24 24.13 (80%) 23.917 24.1538 n# y+ 6 # S( va. _ K8 x* F公制細牙螺紋-02 JIS B 0211-1982(單位：mm)螺纹尺寸 钻头直径 螺纹下孔徑 內螺紋小徑 最小直径 最大直径$ q9 E9 d8 p$ e) r; EM 26 1.5 24.5 24.62 (85%) 24.376 24.67627 2 25 25.2 (85%) 24.835 25.210. z3 J w0 7 S2 s27 1.5 25.5 25.62 (85%) 25.376 25.67627 1 26 26.13 (80%) 25.917 26.153; S& . R9 T% _! j5 u1 28 2 26 26.2 (85%) 25.835 26.2102 q0 , b0 n9 28 1.5 26.5 26.62 (85%) 26.376 26.67628 1 27 27.13 (80%) 26.917 27.1534 Y1 e 6 q. Q# H w# j30 3 27 27.2(85%) 26.752 27.2521 j# w. g* u$ D. c( 7 d- S% D30 2 28 28.2(85%) 27.835 28.21030 1.5 28.5 28.62 (85%) 28.376 28.676 d I$ I8 ) q. F+ l/ 30 1 29 29.13 (80%) 28.917 29.153- w z3 M/ u. z4 V. M32 2 30 30.2(85%) 29.835 30.210+ , W! R5 B32 1.5 30.5 30.62 (85%) 30.376 30.6767 E- + o% l7 X4 ; l- p K; P33 3 30 30.2(85%) 29.752 30.252) * d: ; d M. C33 2 31 31.2(85%) 30.835 31.21033 1.5 31.5 31.62 (85%) 31.376 31.67635 1.5 33.5 33.62 (85%) 33.376 33.67636 3 33 33.2 (85%) 32.752 33.25236 2 34 34.2(85%) 33.835 34.2107 t1 |* 0 t( 36 1.5 34.5 34.62 (85%) 34.376 34.676. M( R! l2 4 U6 - F% N38 1.5 36.5 36.62 (85%) 36.376 36.67639 3 36 36.2 (85%) 35.752 36.252! |0 O: p) y5 _# h/ M& L39 2 37 37.2(85%) 36.835 37.2103 . A( . k6 N* V( E39 1.5 37.5 37.62 (85%) 37.376 37.67640 3 37 37.2(85%) 36.752 37.25240 2 38 38.2(85%) 37.835 38.210/40 1.5 38.5 38.62 (85%) 38.376 38.67642 4 38 38.1(90%) 37.670 38.270- D( D n# O8 H3 R2 Y42 3 39 39.2(85%) 38.752 39.252; h6 * B5 b1 c, G/ M$ H42 2 40 40.2 (85%) 39.835 40.21042 1.5 40.5 40.62 (85%) 40.376 40.67645 4 41 41.1(90%) 40.670 41.2704 A& q, TZ d5 a* z1 45 3 42 42.2(85%) 41.752 42.25245 2 43 43.2(85%) 42.835 43.21045 1.5 43.5 43.62 (85%) 43.376 43.6767 G; e- 9 M; N& - w5 g! J* A48 4 44 44.1(90%) 43.670 44.270/48 3 45 45.2(85%) 44.752 45.2526 K: x) q, B6 c3 Qh48 2 46 46.2(85%) 45.835 46.21048 1.5 46.5 46.62 (85%) 46.376 46.676Z1 R+ U3 F0 C50 3 47 47.2(85%) 46.752 47.252% 5 0 Q1 y8 B2 t# z) T+ N50 2 48 48.2(85%) 47.835 48.2100 Y A$ D6 a2 p. Q c9 I50 1.5 48.5 48.62 (85%) 48.376 48.676註(1)等級：6H5 R0 g* - F/ q) b& e# i8 Y) O4 v(2)基於JIS B 0211-1982標準英制管用螺紋 (單位：mm) : P2 l( Z. # T7 H管用螺紋尺寸 JIS B 0203 JIS B 2301 錐管內螺紋Rc(PT) 平行內螺紋Rp(PS) 錐管內螺紋 計 算 值 下 孔 徑 計 算 值 下 孔 徑 計 算 值 下 孔 徑1/16 6.230 6.2 6.490 6.5 1/8 8.235 8.2 8.495 8.5 8.191 8.2W0 ls/ c+ 0 K/ w3 & K- L8 u. Z U1/4 10.941 10.9 11.341 11.4 10.945 10.93/8 14.428 14.