M8 x 30mm Hexagon button head screws 
Overall length 34.5mm. Thread length 30mm 
14mm Maximum Head Diameter
Hexagon socket 5mm

Features a low profile, rounded, dome-shaped head with a hexagon drive.
These fasteners are ideal when a wider bearing surface is required and their black, chemical matte black finish ensures an attractive, quality appearance and finish wherever they are used.

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