DIN 478 - Square Head Bolts Specifications

*All measurements in millimeters (mm)*

d	e	s	b	k	d1
M8	10	8	22	10	13.5
M10	13	10	26	13	16.5
M12	17	13	30	15	19.5
M16	21	16	38	20	25

*All information is strictly informative