Maryland Metrics Technical Data Chart: DIN 78 extract

Maryland Metrics Technical Data Chart:
Thread end shapes
DIN 78 extract

Thread P dh dp dt dZ Z₁ Z₂ Z₃ Z₄~ Z₅~ w

d pitch H13 h13 h16 h14 + IT 14 + IT 14 + IT 14 min.

M 2 0.4 0.6 1 – 1 0.5 1 0.5 0.25 0.4 0.7

M 2.5 0.45 0.6 1.5 – 1.2 0.63 1.25 0.63 0.35 0.6 0.9

M 3 0.5 0.6 2 – 1.4 0.75 1.5 0.75 0.4 0.8 1.2

M 4 0.7 0.8 2.5 – 2 1 2 1 0.5 1 1.5

M 5 0.8 1 3.5 – 2.5 1.25 2.5 1.25 0.6 1.5 2

M 6 1 1 4 1.5 3 1.5 3 1.5 0.7 1.75 2.5

M 8 1.25 1.6 5.5 2 5 2 4 2 1 2.5 3

M 10 1.5 2 7 2.5 6 2.5 5 2.5 1 3 3.5

M 12 1.75 2.5 8.5 3 8 3 6 3 1.25 3.5 4

M 14 2 3.2 10 4 9 3.5 7 3.5 1.5 4 4.5

M 16 2 3.2 12 4 10 4 8 4 1.75 4.5 5

M 20 2.5 4 15 5 14 5 10 5 2 5 7

M 24 3 5 18 6 16 6 12 6 2.5 6 9

M 27 3 5 21 8 – 6.7 13.5 6.7 3 7 10

u = max. 2P incomplete thread
all dimensions in mm

Thread	P	dh	dp	dt	dZ	Z₁	Z₂	Z₃	Z₄~	Z₅~	w
d	pitch	H13	h13	h16	h14	+ IT 14	+ IT 14	+ IT 14			min.
M 2	0.4	0.6	1	–	1	0.5	1	0.5	0.25	0.4	0.7
M 2.5	0.45	0.6	1.5	–	1.2	0.63	1.25	0.63	0.35	0.6	0.9
M 3	0.5	0.6	2	–	1.4	0.75	1.5	0.75	0.4	0.8	1.2
M 4	0.7	0.8	2.5	–	2	1	2	1	0.5	1	1.5
M 5	0.8	1	3.5	–	2.5	1.25	2.5	1.25	0.6	1.5	2
M 6	1	1	4	1.5	3	1.5	3	1.5	0.7	1.75	2.5
M 8	1.25	1.6	5.5	2	5	2	4	2	1	2.5	3
M 10	1.5	2	7	2.5	6	2.5	5	2.5	1	3	3.5
M 12	1.75	2.5	8.5	3	8	3	6	3	1.25	3.5	4
M 14	2	3.2	10	4	9	3.5	7	3.5	1.5	4	4.5
M 16	2	3.2	12	4	10	4	8	4	1.75	4.5	5
M 20	2.5	4	15	5	14	5	10	5	2	5	7
M 24	3	5	18	6	16	6	12	6	2.5	6	9
M 27	3	5	21	8	–	6.7	13.5	6.7	3	7	10