FIBRE-METAL MAKES AN ATTATCHEMENT CALLED AA SPEEDY 5000 IT A BAND THAT GOES AROUND YOUR HARD HAT AND HAS TWO TABS THAT LATCH ON TO THE RIM OF YOUR HARD HAT I HAVE USED THEM FOR 10 YRS NOW ITS BETTER THAN THE HARD HAT LUG STYLE YOU CAN PICK ONE OF THESE UP AT ANY WELDING SUPPLY HOPE THIS HELPS, TANKIE