A Flange Screw with a Serrated Hex Washer is an un-slotted hex head screw style with a metric thread pitch, and a flange that has serrations on the bearing surface side.
These screws are designed for use in applications where vibrations can loosen fasteners.
Available in the following materials:
Steel Grade 8.8 & 10.9, in Self Colour and Zinc Plated
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