DIN 603 Carriage Bolt

DIN 603 – 2017 Cup Head Square Neck Bolts Specification for stainless steel round head square neck bolts (carriage bolts): German standard DIN603
Material: carbon steel, Q235, 45# steel, stainless steel
Nominal diameter: 5mm–20mm
Length: 15mm–300mm
Surface treatment method: zinc plating, chrome plating, copper plating, surface blackening.

Additional information

DIN 603 Specifications

All measurements in millimeters (mm)

d1	d2 max	k max	f max	b to 125	b to 200	b over 200
M5	13.55	3.3	4.1	16	–	–
M6	16.55	3.88	4.6	18	24	–
M8	20.65	4.88	5.6	22	28	–
M10	24.65	5.38	6.6	26	32	45
M12	30.65	6.95	8.75	30	36	49
M16	38.8	8.95	12.9	38	44	57
M20	46.8	11.05	15.9	–	–	46