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The Vision is the only fastener in the world to give a clear, visual indication of loss of tension. Its indicator can be seen from up to 25 metres away.

It operates on the same internal air-gap technology as the original RotaBolt, but instead of a tactile, finger-tip indicator, the Vision has a specially developed indicator which appears as an unbroken yellow line across the head of the bolt.

As soon as any tension is lost across the bolt, the indicator instantly rotates by ninety degrees to show a distinct right angle break in the yellow line.

The Vision is ideally suited for bolted joints in locations where access is restricted and close inspection difficult.