Dimensions for UNI 6949 Hexagon head self tapping screws

Thread	p	a	e	k			r	s		y max
		max	min	nominal	min	max	max	nominal=max	min	Type C	Type F
ST 2.2	0.8	0.8	3.38	1.3	1.18	1.42	0.3	3.2	3.02	2	1.6
ST 2.9	1.1	1.1	5.4	1.5	1.38	1.62	0.4	5	4.82	2.6	2.1
ST 3.5	1.3	1.3	5.95	2.3	2.18	2.42	0.5	5.5	5.32	3.2	2.5
ST 3.9	1.3	1.3	7.59	2.3	2.18	2.42	0.5	7	6.78	3.5	2.7
ST 4.2	1.4	1.4	7.59	2.8	2.68	2.92	0.6	7	6.78	3.7	2.8
ST 4.8	1.6	1.6	8.71	3	2.88	3.12	0.7	8	7.78	4.3	3.2
ST 5.5	1.8	1.8	8.71	4	3.85	4.15	0.8	8	7.78	5	3.6
ST 6.3	1.8	1.8	10.95	4.8	4.65	4.95	0.9	10	9.78	6	3.6
ST 8	2.1	2.1	14.26	5.8	5.65	5.95	1.1	10	12.73	7.5	4.2