Flange Head Screws DIN6921– M6x16– 10.9 alloy steel plain/ Nickel / Black Oxide / Dacromet

This International Standard specifies the characteristics of flange hexagon bolts ,with product grade A, with threads from M5 up to and including M16,length from 10mm to 200mm,and property classes 8.8, 9.8, 10.9 and A2-70,A4-70.

Flange head screws includes two kinds of serrated and smooth plane.

Flange surface increases the contact area, flange head screws tightened, there is a certain anti loose function.

If you are looking for flange head screws, please contact us for further information.

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