DIN 6797 Form A Tırtıllı Rondela

Dimensions in mm – source DIN 6797
Publication date: 07/1988 – Supersedes DIN 6797: 08/1971
Thread size	Form A				Form J				Form V
Thread size	d1 min=nom	d2 max=nom	s nom	Nr. of teeth	d1 min=nom	d2 max=nom	s nom	Nr. of teeth	d1 min=nom	d2 max nom	s	Nr. of teeth
M 1.6	1.7	3.6	0.3	6	1.7	3.6	0.3	6	–	–	–	–
M 2	2.2	4.5	0.3	6	2.2	4.5	0.3	6	2.2	4.2	0.2	6
M 2.5	2.7	5.5	0.4	6	2.7	5.5	0.4	6	2.7	5.1	0.2	6
M 3	3.2	6	0.4	6	3.2	6	0.4	6	3.2	6	0.2	6
M3.5	3.7	7	0.5	6	3.7	7	0.5	6	3.7	7	0.25	6
M 4	4.3	8	0.5	8	4.3	8	0.5	8	4.3	8	0.25	8
M 5 *	5.1	9	0.5	8	5.1	9	0.5	8
M 5	5.3	10	0.6	8	5.3	10	0.6	8	5.3	9.8	0.3	8
M 6	6.4	11	0.7	8	6.4	11	0.7	8	6.4	–	–	–
M 7	7.4	12.5	0.8	8	7.4	12.5	0.8	8	7.4	11.8	0.4	10
M 8 *	8.2	14	0.8	8	8.2	14	0.8	8
M 8	8.4	15	0.8	8	8.4	15	0.8	8	8.4	15.3	0.4	10
M 10	10.5	18	0.9	9	10.5	18	0.9	9	10.5	19	0.5	10
M 12	13	20.5	1	10	13	20.5	1	10	13	23	0.5	10
M 14	15	24	1	10	15	24	1	10	15	26.2	0.6	12
M 16	17	26	1.2	12	17	26	1.2	12	17	30.2	0.6	12
M 18	19	30	1.4	12	19	30	1.4	12	–	–	–	–
M 20	21	33	1.4	12	21	33	1.4	12	–	–	–	–
M 22	23	36	1.5	14	23	36	1.5	14	–	–	–	–
M 24	25	38	1.5	14	25	38	1.5	14	–	–	–	–
M 27	28	44	1.6	14	28	44	1.6	14	–	–	–	–
M 30	31	48	1.6	14	31	48	1.6	14	–	–	–	–