Metric Thread Chart

THREAD CHART (METRIC THREADS)

THREAD DATA CHART: Metric Thread — Fine Pitch

Nominal Size ISO MF Thread Form Type Major Diameter mm
d = D Pitch mm
p Root Radius mm
r Pitch Diameter mm
d2 = D2 Minor Diameter Male Thd.
d3 Minor Diameter Female Thd.
D1 Thread Height Male Thd.
h3 Thread Height Female Thd.
H1 Tap Drill Diameter mm

1.0x0.20 M 1.00 0.20 0.029 0.870 0.755 0.783 0.123 0.108 0.80

1.1x0.20 M 1.10 0.20 0.029 0.970 0.855 0.883 0.123 0.108 0.90

1.2x0.20 M 1.20 0.20 0.029 1.070 0.955 0.983 0.123 0.108 1.00

1.4x0.20 M 1.40 0.20 0.029 1.270 1.155 1.183 0.123 0.108 1.20

1.6x0.20 M 1.60 0.20 0.029 1.470 1.355 1.383 0.123 0.108 1.40

1.8x0.20 M 1.80 0.20 0.029 1.670 1.555 1.583 0.123 0.108 1.60

2.0x0.25 M 2.00 0.25 0.036 1.838 1.693 1.729 0.153 0.135 1.75

2.2x0.25 M 2.20 0.25 0.036 2.038 1.893 1.929 0.153 0.135 1.95

2.5x0.35 M 2.50 0.35 0.051 2.273 2.071 2.121 0.215 0.189 2.10

3.0x0.35 M 3.00 0.35 0.051 2.773 2.571 2.621 0.215 0.189 2.60

3.5x0.35 M 3.50 0.35 0.051 3.273 3.071 3.121 0.215 0.189 3.10

4.0x0.50 M 4.00 0.50 0.072 3.545 3.247 3.297 0.306 0.270 3.50

4.5x0.50 M 4.50 0.50 0.072 4.045 3.747 3.797 0.306 0.270 4.00

5.0x0.50 M 5.00 0.50 0.072 4.545 4.247 4.297 0.306 0.270 4.50

5.0x0.75 M 5.00 0.75 0.108 4.376 3.950 4.020 0.463 0.409 4.20

6.0x0.75 M 6.00 0.75 0.108 5.376 4.950 5.020 0.463 0.409 5.20

6.0x1.00 M 6.00 1.00 0.144 5.350 4.773 4.854 0.618 0.545 5.00

7.0x1.00 M 7.00 1.00 0.144 6.350 5.773 5.854 0.618 0.545 6.00

8.0x1.00 M 8.00 1.00 0.144 7.350 6.773 6.854 0.618 0.545 7.00

8.0x1.25 M 8.00 1.25 0.180 7.188 6.542 6.634 0.773 0.681 6.80

9.0x1.25 M 9.00 1.25 0.180 8.188 7.542 7.634 0.773 0.681 7.80

10.0x1.25 M 10.00 1.25 0.180 9.188 8.542 8.634 0.773 0.681 8.80

10.0x1.50 M 10.00 1.50 0.216 9.026 8.311 8.413 0.928 0.817 8.50

11.0x1.50 M 11.00 1.50 0.216 10.026 9.311 9.413 0.928 0.817 9.50

12.0x1.50 M 12.00 1.50 0.216 11.026 10.311 10.413 0.928 0.817 10.50

Related Blog

Bolt Torque Chart and Calculator

Jul 2025

Bolt Grade Markings and Strength Chart

Jul 2025

Carriage Bolts: Technical Information

Aug 2025

Conversion Chart

Aug 2025

Fastener Material Specifications

Aug 2025

Inch Thread Pitch Chart

Aug 2025

THREAD DATA CHART: Metric Thread — Fine Pitch
Nominal Size ISO MF	Thread Form Type	Major Diameter mm d = D	Pitch mm p	Root Radius mm r	Pitch Diameter mm d2 = D2	Minor Diameter Male Thd. d3	Minor Diameter Female Thd. D1	Thread Height Male Thd. h3	Thread Height Female Thd. H1	Tap Drill Diameter mm
1.0x0.20	M	1.00	0.20	0.029	0.870	0.755	0.783	0.123	0.108	0.80
1.1x0.20	M	1.10	0.20	0.029	0.970	0.855	0.883	0.123	0.108	0.90
1.2x0.20	M	1.20	0.20	0.029	1.070	0.955	0.983	0.123	0.108	1.00
1.4x0.20	M	1.40	0.20	0.029	1.270	1.155	1.183	0.123	0.108	1.20
1.6x0.20	M	1.60	0.20	0.029	1.470	1.355	1.383	0.123	0.108	1.40
1.8x0.20	M	1.80	0.20	0.029	1.670	1.555	1.583	0.123	0.108	1.60
2.0x0.25	M	2.00	0.25	0.036	1.838	1.693	1.729	0.153	0.135	1.75
2.2x0.25	M	2.20	0.25	0.036	2.038	1.893	1.929	0.153	0.135	1.95
2.5x0.35	M	2.50	0.35	0.051	2.273	2.071	2.121	0.215	0.189	2.10
3.0x0.35	M	3.00	0.35	0.051	2.773	2.571	2.621	0.215	0.189	2.60
3.5x0.35	M	3.50	0.35	0.051	3.273	3.071	3.121	0.215	0.189	3.10
4.0x0.50	M	4.00	0.50	0.072	3.545	3.247	3.297	0.306	0.270	3.50
4.5x0.50	M	4.50	0.50	0.072	4.045	3.747	3.797	0.306	0.270	4.00
5.0x0.50	M	5.00	0.50	0.072	4.545	4.247	4.297	0.306	0.270	4.50
5.0x0.75	M	5.00	0.75	0.108	4.376	3.950	4.020	0.463	0.409	4.20
6.0x0.75	M	6.00	0.75	0.108	5.376	4.950	5.020	0.463	0.409	5.20
6.0x1.00	M	6.00	1.00	0.144	5.350	4.773	4.854	0.618	0.545	5.00
7.0x1.00	M	7.00	1.00	0.144	6.350	5.773	5.854	0.618	0.545	6.00
8.0x1.00	M	8.00	1.00	0.144	7.350	6.773	6.854	0.618	0.545	7.00
8.0x1.25	M	8.00	1.25	0.180	7.188	6.542	6.634	0.773	0.681	6.80
9.0x1.25	M	9.00	1.25	0.180	8.188	7.542	7.634	0.773	0.681	7.80
10.0x1.25	M	10.00	1.25	0.180	9.188	8.542	8.634	0.773	0.681	8.80
10.0x1.50	M	10.00	1.50	0.216	9.026	8.311	8.413	0.928	0.817	8.50
11.0x1.50	M	11.00	1.50	0.216	10.026	9.311	9.413	0.928	0.817	9.50
12.0x1.50	M	12.00	1.50	0.216	11.026	10.311	10.413	0.928	0.817	10.50