A Class Fasteners

8.8 Steel	Zinc plated White	Zinc plated BICHRO	Stainless steel A2	Stainless steel A4
Yes	Yes	Yes	Yes	Yes

8.8

Steel

Zinc plated

White

Zinc plated

BICHRO

Stainless steel

Yes

d1	M1.6 ⁽¹⁾	M2	M2.5	M3	(M3.5) ^has	M4	M5	M6	M8	M10
d2 max.	3.2	4	5	5.6	7	8	9.5	12	16	20
d2 mini		3.7	4.7	5.3	6.64	7.64	9.14	11,57	15.57	19.48
k max.	1.4	1.6	2.1	2.4	2.6	3.1	3.7	4.6	6	7.5
k mini.		1.46	1.96	2.26	2.46	2.92	3.52	4.3	5.7	7.14
	X 5	X 6	X 8	X 10	X 15	X 20	X 25	X 30	X 45	X 50
t max.	0.6	0.77	1.04	1.27	1.33	1.66	1.91	2.42	3.18	4.02
t Min.		0.63	0.91	1.01	1.07	1.27	1.52	2.02	2.79	3.62
A ~	1.49	1.75	2.4	2.8	3.35	3.95	4.5	5.6	7.95	8.95

1 - Not included in the ISO 14583 standard.
a - should be avoided if the dimensions in brackets.