Taps Chart

Thread Standard:

wdt_ID	Tap	Thread Standard	Major dia (mm)	Pitch (mm)	Drill (mm)	Major dia (Inch))	TPI	Drill (Inch)
1	M1.6 x 0.35	Metric	1.6	0.35	1.25	0.063	73	#55
2	M2 x 0.4	Metric	2	0.4	1.6	0.0787	64	#52
3	M2.5 x 0.45	Metric	2.5	0.45	2.05	0.0984	56	#46
4	M3 x 0.5	Metric	3	0.5	2.5	0.1181	51	#39
5	M3.5 x 0.6	Metric	3.5	0.6	2.9	0.1378	42	#32
6	M4 x 0.7	Metric	4	0.7	3.3	0.1575	36	#30
7	M5 x 0.8	Metric	5	0.8	4.2	0.1969	32	#19
8	M6 x 1	Metric	6	1	5	0.2362	25	#8
9	M8 x 1.25	Metric	8	1.25	6.8	0.315	20	H
10	M8 x 1	Metric	8	1	7	0.315	25	J
11	M10 x 1.5	Metric	10	1.5	8.5	0.3937	17	R
12	M10 x 1.25	Metric	10	1.25	8.8	0.3937	20	11/32
13	M12 x 1.75	Metric	12	1.75	10.2	0.4724	15	13/32
14	M12 x 1.25	Metric	12	1.25	10.8	0.4724	20	27/64
15	M14 x 2	Metric	14	2	12	0.5512	13	15/32
16	M14 x 1.5	Metric	14	1.5	12.5	0.5512	17	1/2
17	M16 x 2	Metric	16	2	14	0.6299	13	35/64
18	M16 x 1.5	Metric	16	1.5	14.5	0.6299	17	37/64
19	M18 x 2.5	Metric	18	2.5	15.5	0.7087	10	39/64
20	M18 x 1.5	Metric	18	1.5	16.5	0.7087	17	21/32
21	M20 x 2.5	Metric	20	2.5	17.5	0.7874	10	11/16
22	M20 x 1.5	Metric	20	1.5	18.5	0.7874	17	47/64
23	M22 x 2.5	Metric	22	2.5	19.5	0.8661	10	49/64
24	M22 x 1.5	Metric	22	1.5	20.5	0.8661	17	13/16
25	M24 x 3	Metric	24	3	21	0.9449	8	53/64

Related Glossary Terms: