上海吉都国际贸易有限公司

底孔直径（切削螺纹）-MF

MF ISO Metric Fine Threads, DIN 13 6H(4H) 公制细牙螺纹
ø	P 牙距	Nut Thread Minor-ø 内螺纹小径		预钻孔径mm
d1	mm 毫米	mini 最小	max 最大	预钻孔径mm
M 2	0.25	1.729	1.774	1.75
M 2.2	0.25	1.929	1.974	1.95
M 2.5	0.35	2.121	2.221	2.15
M 3	0.35	2.621	2.721	2.65
M 3.5	0.35	3.121	3.221	3.15
M 4	0.35	3.621	3.721	3.65
M 4	0.5	3.459	3.599	3.50
M 5	0.5	4.459	4.599	4.50
M 6	0.5	5.459	5.599	5.50
M 6	0.75	5.188	5.378	5.20
M 7	0.75	6.188	6.378	6.20
M 8	0.5	7.459	7.599	7.50
M 8	0.75	7.188	7.378	7.20
M 8	1	6.917	7.153	7.00
M 9	0.75	8.188	8.378	8.20
M 9	1	7.917	8.153	8.00
M 10	0.5	9.459	9.599	9.50
M 10	0.75	9.188	9.378	9.20
M 10	1	8.917	9.153	9.00
M 10	1.25	8.647	8.912	8.80
M 11	1	9.917	10.153	10.00
M 12	0.5	11.459	11.599	11.50
M 12	0.75	11.188	11.378	11.20
M 12	1	10.917	11.153	11.00
M 12	1.25	10.647	10.912	10.80
M 12	1.5	10.376	10.676	10.50
M 13	1	11.917	12.153	12.00
M 14	1	12.917	13.153	13.00
M 14	1.25	12.647	12.912	12.80
M 14	1.5	12.376	12.676	12.50
M 15	1	13.917	14.153	14.00
M 15	1.5	13.376	13.676	13.50
M 16	1	14.917	15.153	15.00
M 16	1.5	14.376	14.676	14.5
M 18	1	16.917	17.153	17.00
M 18	1.5	16.376	16.676	16.50
M 18	2	15.835	16.210	16.00
M 20	1	18.917	19.153	19.00
M 20	1.5	18.376	18.676	18.50
M 20	2	17.835	18.210	18.00
M 22	1	20.917	21.153	21.00
M 22	1.5	20.376	20.676	20.50
M 22	2	19.835	20.210	20.00
M 24	1	22.917	23.153	23.00
M 24	1.5	22.376	22.676	22.50
M 24	2	21.835	22.210	22.00
M 25	1	23.917	24.153	24.00
M 25	1.5	23.376	23.676	23.50
M 26	1.5	24.376	24.676	24.50
M 27	1.5	25.376	25.676	25.50
M 27	2	24.835	25.210	25.00
M 28	1.5	26.376	26.676	26.50
M 28	2	25.835	26.210	26.00
M 30	1	28.917	29.153	29.00
M 30	1.5	28.376	28.676	28.50
M 30	2	27.835	28.210	28.00
M 32	1.5	30.376	30.676	30.50
M 32	2	29.835	30.210	30.00
M 33	1.5	31.376	31.676	31.50
M 33	2	30.835	31.210	31.00
M 34	1.5	32.376	32.676	32.50
M 35	1.5	33.376	33.676	33.50
M 36	1.5	34.376	34.676	34.50
M 36	2	33.835	34.210	34.00
M 36	3	32.752	33.252	33.00
M 38	1.5	36.376	36.676	36.50
M 39	1.5	37.376	37.676	37.50
M 39	2	36.835	37.210	37.00
M 39	3	35.752	36.252	36.00
M 40	1.5	38.376	38.676	38.50
M 40	2	37.835	38.210	38.00
M 40	3	36.752	37.252	37.00
M 42	1.5	40.376	40.676	40.50
M 42	2	39.835	40.210	40.00
M 42	3	38.752	39.252	39.00
M 45	1.5	43.376	43.676	43.50
M 45	2	42.835	43.210	43.00
M 45	3	41.752	42.252	42.00
M 48	1.5	46.376	46.676	46.50
M 48	2	45.835	46.210	46.00
M 48	3	44.752	45.252	45.00
M 50	1.5	48.376	48.676	48.50
M 50	2	47.835	48.210	48.00
M 50	3	46.752	47.252	47.00
M 52	1.5	50.376	50.676	50.50
M 52	2	49.835	50.210	50.00
M 52	3	48.752	49.252	49.00
M 54	1.5	52.376	52.676	52.50
M 56	1.5	54.376	54.676	54.50
M 56	2	53.835	54.210	54.00
M 56	3	52.752	53.252	53.00
M 58	1.5	56.376	56.676	56.50
M 60	1.5	58.376	58.676	58.50
M 60	2	57.835	58.210	58.00
M 60	3	56.752	57.252	57.00
M 64	2	61.835	62.210	62.00
M 64	4	59.670	60.270	60.00