M8x1.25-13mm Metric Hex-Head & Cylinder
Nut Smooth Flange

Zinc Plated—Meet DIN 6923
Bag of 10
Metric High-Strength Class 10 Steel
These are the nuts you need for heads and cylinders that won't gall the metal as the serrated will.

Also available with a 12mm &13mm Hex - Black Phosphate

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Material Steel
Class 10
Finish Zinc Plated
Thread Direction Right Hand
Specifications Met DIN 6923
Thread Size M8 × 1.25
Width 13 mm
Flange
Diameter 17.9 mm
Height 1.2 mm
Overall Height 8 mm