DIN 478 Set Screw with Square Head and Collar

DIN 478 covers set screws with a square head and collar that ensures secure fixation of the fastener. The screw shank has partial metric thread. The product is designed for strong connections of metal parts and is used in mechanical engineering, instrument making and other industries.

Technical specifications and features

DIN 478 screws are made of high-strength steel. For use in aggressive environments, fasteners with an additional protective coating that prevents corrosion are used. Product features:

• Metal property class – 8.8, 10.9. Such screws are suitable for heavily loaded critical connections.
• Thread diameter – from M6 to M16.
• Head shape – square, allows convenient tightening and loosening with a wrench.

The screw with a collar provides reliable fixation of the threaded connection under increased loads. Such products are used in the assembly of vehicles, production machinery, instruments and other equipment.

Dimensions of DIN 478 set screws with square head:

d	M6	M8	M10	M12	M16
b	18	22	26	30	38
dc	10.5	13.5	16.5	19.5	25
e	8	10	13	17	21/22
k	8	10	13	15	20
s	6	8	10	13	16/17

d	M8	M10	M12	M16
b	22	26	30	38
dc	13.5	16.5	19.5	25
c	2	3	3	4
k	10	13	15	20
s	8	10	13	16/17