螺丝切削攻丝钻孔径对照表-佛山市台创机械制造有限公司

螺丝切削攻丝钻孔径对照表

点击：3384 发布单位：陈晓燕发布时间： 2020-11-18

螺丝切削攻丝钻孔径对照表
公制粗螺纹				美制粗螺纹
规格	标准径	2级牙钻孔径		规格（UNC）	标准径	2级牙钻孔径
规格	标准径	最大	最小	规格（UNC）	标准径	最大	最小
M1.0×0.25	0.75	0.785	0.729	NO.1-64(1.854)	1.55	1.582	1.425
M1.1×0.25	0.85	0.885	0.829	NO.2-56(2.184)	1.80	1.871	1.695
M1.2×0.25	0.95	0.985	0.985	NO.3-48(2.515)	2.10	2.146	1.941
M1.4×0.3	1.10	1.142	1.075	NO.4-40(2.845)	2.30	2.385	2.157
M1.6×0.35	1.25	1.321	1.221	NO.5-40(3.175)	2.60	2.697	2.487
M1.7×0.35	1.35	1.421	1.321	NO.6-32(3.505)	2.80	2.895	2.642
M1.8×0.35	1.45	1.521	1.421	NO8-32(4.166)	3.40	3.53	3.302
M2.0×0.4	1.60	1.679	1.567	NO.10-24(4.826)	3.90	3.962	3.683
M2.2×0.45	1.75	1.838	1.713	NO.12-24(5.486)	4.50	4.597	4.344
M2.3×0.4	1.90	1.979	1.867	1/4-20	5.10	5.257	4.979
M2.5×0.45	2.10	2.138	2.013	5/16-18	6.60	6.731	6.401
M2.6×0.45	2.20	2.238	2.113	3/8-16	8.00	8.153	7.798
M3.0×0.5	2.50	2.599	2.459	7/16-14	9.40	9.55	9.144
M3.0×0.6	2.40	2.440	2.280	1/2-13	10.80	11.023	10.592
M3.5×0.6	2.90	3.010	2.850	9/16-12	12.20	12.446	11.989
M4.0×0.7	3.30	3.422	3.242	5/8-11	13.60	12.868	13.386
M4.0×0.75	3.25	3.326	3.106	3/4-10	16.50	18.840	16.307
M4.5×0.75	3.80	3.878	3.688	7/8-9	19.50	19.761	19.177
M5.0×0.8	4.20	4.334	4.134	1	22.20	22.606	21.971
M5.0×0.9	4.10	4.170	3.930	1-1/8-7	25.00	25.349	24.638
M6.0×1.0	5.00	5.153	4.917	1-1/4-7	28.20	28.524	27.813
M7.0×1.0	6.00	6.153	5.917	1-3/8-6	30.80	31.115	30.353
M8.0×1.25	6.80	6.912	6.647	1-1/2-6	34.00	34.290	33.528
M9.0×1.25	7.80	7.912	7.647	1-3/4-5	39.50	39.827	38.964
M10×1.5	8.50	8.676	8.376	2-4-1/2	45.20	45.593	44.679
M11×1.5	9.50	9.676	9.376
M12×1.75	10.30	10.441	10.106
M14×2.0	12.00	12.210	11.835
M16×2.0	14.00	14.210	13.835
M18×2.5	15.50	15.744	15.294
M20×2.5	17.50	17.744	17.294
M22×2.5	19.50	19.744	19.294
M24×3.0	21.00	21.252	20.752
M27×3.0	24.00	24.252	23.752
M30×3.5	26.50	26.771	26.211

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