Tapping Drill & Clearance Hole Sizes

A high-quality fastener for businesses to maintain operation efficiency

推荐攻丝钻头和通孔尺寸

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联络专业人员

使用这些表格来计算 ISO 公制粗螺纹和细螺纹的相应尺寸钻头和间隙孔。

所有尺寸以毫米（mm）为单位。

粗螺纹
细螺纹

粗螺纹

			间隙孔尺寸
标称尺寸	螺栓间距	攻丝钻头尺寸	紧密贴合	中等适合	自由适配
M1	0.25	0.75	-	1.2	-
M1.1	0.25	0.85	-	-	-
M1.2	0.25	0.95	-	1.4	-
M1.4	0.3	1.1	-	1.6	-
M1.6	0.35	1.25	1.7	1.8	2
M1.8	0.35	1.45	-	2	-
M2	0.4	1.6	2.2	2.4	2.6
M2.2	0.45	1.75	-	2.8	-
M2.5	0.45	2.05	2.7	2.9	3.1
M3	0.5	2.5	3.2	3.4	3.6
M3.5	0.6	2.9	-	3.9	-
M4	0.7	3.3	4.3	4.5	4.8
M4.5	0.75	3.75	-	-	-
M5	0.8	4.2	5.3	5.5	5.8
M6	1	5	6.4	6.6	7
M7	1	6	-	-	-
M8	1.25	6.75	8.4	9	10
M9	1.25	7.75	-	-	-
M10	1.5	8.5	10.5	11	12
M11	1.5	9.5	-	-	-
M12	1.75	10.2	13	14	15
M14	2	12	15	16	17
M16	2	14	17	18	19
M18	2.5	15.5	19	20	21
M20	2.5	17.5	21	22	24
M22	2.5	19.5	23	24	26
M24	3	21	25	26	28
M27	3	24	28	30	32
M30	3.5	26.5	31	33	35
M33	3.5	29.5	34	36	38
M36	4	32	37	39	42
M39	4	35	40	42	45
M42	4.5	37.5	43	45	48
M45	4.5	40.5	46	48	52
M48	5	43	50	52	56
M52	5	47	54	56	62
M56	5.5	50.5	-	-	-
M60	5.5	54.5	-	-	-
M64	6	58	-	-	-
M68	6	62	-	-	-
M72	6	66	-	-	-
M76	6	70	-	-	-

细螺纹

尺寸	沥青	钻头
M2	0.25	1.75
M2.2	0.25	1.95
M2.3	0.25	2.05
M2.5	0.35	2.15
M2.6	0.35	2.25
M3	0.35	2.65
M3.5	0.35	3.15
M4	0.35	3.65
M4	0.5	3.5
M5	0.35	4.65
M5	0.5	4.5
M5	0.75	4.25
M5.5	0.5	5
M6	0.5	5.5
M6	0.75	5.25
M7	0.75	6.25
M8	0.5	7.5
M8	0.75	7.25
M8	1	7
M9	0.75	8.25
M9	1	8
M10	0.5	9.5
M10	0.75	9.25
M10	1	9
M10	1.25	8.75
M11	0.75	10.25
M11	1	10
M11	1.25	9.75
M12	0.5	11.5
M12	0.75	11.25
M12	1	11
M12	1.25	10.75
M12	1.5	10.5
M14	1	13
M14	1.25	12.75
M14	1.5	12.5
M15	0.75	14.25
M15	1	14
M15	1.5	13.5
M16	0.5	15.5
M16	0.75	15.25
M16	1	15
M16	1.25	14.75
M16	1.5	14.5
M17	1	16
M17	1.5	15.5
M18	0.75	17.25
M18	1	17
M18	1.25	16.75
M18	1.5	16.5
M18	2	16
M19	1	18
M20	1.5	18.5
M20	2	18
M22	1	21
M22	1.5	20.5
M22	2	20
M24	1	23
M24	1.5	22.5
M24	2	22
M25	1	24
M25	1.5	23.5
M25	2	23
M27	1	26
M27	1.5	25.5
M27	2	25
M28	1	27
M28	1.5	26.5
M28	2	26
M30	1	29
M30	1.5	28.5
M30	2	28
M30	3	27
M32	1	31
M32	1.5	30.5
M32	2	30
M33	1.5	31.5
M33	2	31
M33	3	30
M35	1.5	33.5
M35	2	33
M35	3	32
M36	1	35
M36	1.5	34.4
M36	2	34
M36	3	33
M38	1	37
M38	1.5	36.5
M38	2	36
M39	1.5	37.5
M39	2	37
M39	3	36
M40	1	39
M40	1.5	38.5
M40	3	37
M42	1.5	40.5
M42	2	40
M42	3	39
M42	4	38
M45	1.5	43.5
M45	2	43
M45	3	42
M48	1.5	46.5
M48	2	46
M48	3	45
M48	4	44
M50	1.5	48.5
M50	2	48
M50	3	47
M52	1.5	50.5
M52	2	50
M52	3	49
M52	4	48
M56	2	54
M56	4	52

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推荐攻丝钻头和通孔尺寸

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