DIN 571 Specifications – Hex Head Wood Screws

DIN 571

Hexagon head wood screws

DIAMETERS

Screw Thread d		M4	M5	M6
ds	max	4	5	6
	min	3.52	4.52	5.52
da	max	5	6	7.2
k	Nominal Size	2.8	3.5	4
	max	3.1	3.88	4.38
	min	2.5	3.13	3.63
s	max=nominal size	7	8	10
	min	6.64	7.64	9.64
e	min	7.5	8.63	10.89

Screw Thread d		(M7)	M8	M10
ds	max	7	8	10
	min	6.42	7.42	9.42
da	max	8.2	10.2	12.2
k	Nominal Size	5	5.5	7
	max	5.38	5.88	7.45
	min	4.63	5.13	6.55
s	max=nominal size	12	13	17
	min	11.57	12.57	16.57
e	min	13.07	14.2	18.72

Screw Thread d		M12	M16	M20
ds	max	12	16	20
	min	11.3	15.3	19.3
da	max	15.2	19.2	24.4
k	Nominal Size	8	10	13
	max	8.45	10.45	13.9
	min	7.55	9.55	12.1
s	max=nominal size	19	24	30
	min	18.48	23.16	29.16
e	min	20.88	26.17	32.95

All information is strictly informative