Ball 1/4" Whitworth

1/4" whitworth starting Ball for underwater use, equipped with a hex insert on the top, allowing the ball to be easily tightened with an Allen key. On the bottom, a 1/4" whitworth thread of approximately 7 mm protrudes.

The 1/4" whitworth thread, together with the 3/8”  whitworth thread, is a widely used standard for mounting on tripods, camera supports and professional accessories.

Ball diameter 2.5 cm (1”), 100% made in Italy, manufactured from high-quality anticorodal aluminum and anodized with a 40-micron military treatment to ensure maximum resistance to wear and saltwater corrosion over time.

This ball can be mounted on trays, housings and other accessories with compatible M6 holes, providing an ideal anchor point for arms, lights and accessories, starting from a tightening clamp.

Friction function underwater: the ball is equipped with an O-ring that creates a friction effect when locked in a clamp. This system allows quick and precise orientation of the clamp and the entire set-up above it, without the need for continuous loosening or tightening. Underwater, it is sufficient to slightly loosen the clamp’s wing nut to adjust the position: thanks to the action of the O-ring, the clamp remains stable without requiring excessive tightening and is always ready to be repositioned if needed.

With use, the O-ring may wear over time; in this case, simply replace it with the dedicated spare kit.