4.6 Cup Head B/N Kit – M10 x 30mm Zinc

The 4.6 Cup Head B/N Kit – M10 x 30mm Zinc is a cup head (carriage) bolt and nut kit with a smooth domed head and square shoulder that resists spinning as the nut is tightened. It’s manufactured from zinc-plated steel, giving it a durable protective coating suited to general indoor and light outdoor use. A practical general-purpose kit for timber and light structural fixing where a neat, tamper-resistant head is preferred.