77 01 405 672
Hex nut M5 
Bag of 50 | | | |---:|---| Diameter | M5 Pitch |80 Height |4 mm Material | 8-8 Steel - tensile strength 80 to 100 h bar Protective coating | 02 Zinc plating - Bichromate or phosphate dipping
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, 77 01 405 672