DIN 479 Specifications - Square Head Bolts With Short Dog Point

Screw Thread d		M5	M6	M8	M10
P	Pitch	0.8	1	1.25	1.5
a	max	2.4	3	4	4.5
d_p	max=nominal size	3.5	4	5.5	7
d_p	min	3.32	3.82	5.32	6.78
e	max=nominal size	6.5	8	10	13
e	min	5.92	7.42	9.42	12.3
k	Nominal Size	5	6	8	10
	max	5.15	6.15	8.18	10.18
	min	4.85	5.85	7.82	9.82
k₁	min	3.4	4.1	5.5	6.9
r	min	0.2	0.25	0.4	0.4
s	max=nominal size	5	6	8	10
s	min	4.82	5.82	7.78	9.78
z	min=nominal size	1.25	1.5	2	2.5
z	max	1.5	1.75	2.25	2.75

Screw Thread d		M12	M16 SW16	M16
P	Pitch	1.75	2	2
a	max	5.3	6	6
d_p	max=nominal size	8.5	12	12
d_p	min	8.28	11.73	11.73
e	max=nominal size	17	21	22
e	min	16.3	20.16	21.16
k	Nominal Size	12	16	16
	max	12.21	16.21	16.21
	min	11.79	15.79	15.79
k₁	min	8.3	11.1	11.1
r	min	0.6	0.6	0.6
s	max=nominal size	13	16	17
s	min	12.73	15.73	16.73
z	min=nominal size	3	4	4
z	max	3.25	4.3	4.3

Screw Thread d		M20 SW21	M20 SW22	M24
P	Pitch	2.5	2.5	3
a	max	7.5	7.5	9
d_p	max=nominal size	15	15	18
d_p	min	14.73	14.73	17.73
e	max=nominal size	27	28	32
e	min	26.16	27.16	31
k	Nominal Size	20	20	22
	max	20.26	20.26	22.26
	min	19.74	19.74	21.74
k₁	min	13.8	13.8	15.2
r	min	0.8	0.8	0.8
s	max=nominal size	21	22	24
s	min	20.67	21.67	23.67
z	min=nominal size	5	5	6
z	max	5.3	5.3	6.3

DIN 479 Specifications – Square Head Bolts With Short Dog Point