Feature(may vary by option.)

●Product Name: Star lock washers; Material: Metal
●Weight: 5g; Package Content: 10 x Star lock washers
●Thickness: 0.5 mm/0.02; fastener type: internal tooth Scheiben
●Shank Diameter: 5 mm/0.2; Outer Diameter: 12 mm/0.47 "
●Colour: Black

[M5x12mm]

[M12x25mm]

Description

Description:
A lock washer exerts a spring force between the tightening screw and in the substrate that the disc hard against the substrate and the bolts you can depend on to keep your hard against the nut or the substrate thread and is resistance to friction and rotation.
These washers create a permanent installations and lock plastic, steel, etc.