Airfield Lighting Systems Ltd (ALS) have launched SmartBolts – a Visual Indication System that turns the top head of a bolt from red to black as you tighten it. SmartBolts give you peace of mind that your bolts are at the correct tension vital for Airfield safety. They can be easily retrofitted to existing runway lighting systems and therafter inspections are visible rather than manual. They do not need to be replaced with every inspection, saving you money and time.
They are manufactured in the US to rigorous standards and will fit any existing AGL fitting with their universal design.