A pack of three single-action spring hinges, ideal for fire doors and external doors that require self-closing. easier to fit than perko-type concealed door closers and overheads, these hinges have an adjustable spring tension which is adjusted to tension once the hinges are fitted. When tension is reached, a pin is inserted to lock the tension. simply open the door and it will close automatically.
PACK OF 3no HINGES
10 year mechanical warranty