There is a note against an ABS bath or shower grab rail in Screwfix catalog no 83 page 469 item code 61433 stating 'No earthing required'.
OK so far; but curiously there is no such note against the 3 steel grab rails (eg item code 45290) offered alongside.
Normally this type of grab rail is fixed by screws or bolts to the wall in the shower or above a bath without external contact & thus should not require bonding SFAIUI. So when would bonding be required ? If I understand incorrectly, how should such a grab rail be bonded?
TIA