ACME Thread Table – ANSI / ASME Norms

In the table below, you will find the required dimensions for designing your ACME threaded components. The parameters d, d2, D2, Pitch, and d1 locate in the drawing on the right side of the table.

You can also get a pre-finished 3D model of your desired thread size by clicking the “3D-Modell” button on the last column. Once you have determined your desired thread size, send us your screw and nuts inquiries.

If you are unsure about the best thread size for your application, try our online dimensioning tool.

ACME thread according to ANSI / ASME B1.5-1977 – Nominal Dimensions

	Nominal Diameter (in)	Pitch diameter (in)	Pitch (in)	Internal diameter (in)
Thread	d	d2=D2	Teilung P	d1	Download 3D Model
1/4" - 16 ACME	0.2500	0.2188	0.0625	0.1875	3D Model
5/16" - 14 ACME	0.3125	0.2768	0.0714	0.2411	3D Model
3/8" - 12 ACME	0.3750	0.3333	0.0833	0.2917	3D Model
7/16" - 12 ACME	0.4375	0.3958	0.0833	0.3542	3D Model
1/2" - 10 ACME	0.5000	0.4500	0.1000	0.4000	3D Model
5/8" - 8 ACME	0.6250	0.5625	0.1250	0.5000	3D Model
3/4" - 6 ACME	0.7500	0.6667	0.1667	0.5833	3D Model
7/8" - 6 ACME	0.8750	0.7917	0.1667	0.7083	3D Model
1" - 5 ACME	1.0000	0.9000	0.2000	0.8000	3D Model
1 1/8" - 5 ACME	1.1250	1.0250	0.2000	0.9250	3D Model
1 1/4" - 5 ACME	1.2500	1.1500	0.2000	1.0500	3D Model
1 3/8" - 4 ACME	1.3750	1.2500	0.2500	1.1250	3D Model
1 1/2" - 4 ACME	1.5000	1.3750	0.2500	1.2500	3D Model
1 3/4" - 4 ACME	1.7500	1.6250	0.2500	1.5000	3D Model
2" - 4 ACME	2.0000	1.8750	0.2500	1.7500	3D Model
2 1/4" - 3 ACME	2.2500	2.0833	0.3333	1.9167	3D Model
2 1/2" - 3 ACME	2.5000	2.3333	0.3333	2.1667	3D Model
2 3/4" - 3 ACME	2.7500	2.5833	0.3333	2.4167	3D Model
3" - 2 ACME	3.0000	2.7500	0.5000	2.5000	3D Model
3 1/2" - 2 ACME	3.5000	3.2500	0.5000	3.0000	3D Model
4" - 2 ACME	4.0000	3.7500	0.5000	3.5000	3D Model
4 1/2" - 2 ACME	4.5000	4.2500	0.5000	4.0000	3D Model
5" - 2 ACME	5.0000	4.7500	0.5000	4.5000	3D Model

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