You can not use even unauthorised screw let alone number plate.
[181][
97A. Penalty for fabrication of plates.– (1) A person other than the person authorized by the Government, who prepares or manufactures a number plate or a screw which is to be provided by the prescribed authority or the registering authority under section 25, or displays such number plate or screw on motor vehicle shall be punished with imprisonment for a term which may extend to one year but which shall not be less than seven days or with fine which may extend to one hundred thousand rupees but which shall not be less than fifteen thousand rupees or both.
(2) A person, who fabricates or counterfeits a number plate or a screw provided or to be provided by the prescribed authority or the registering authority under section 25, or displays such number plate or screw on motor vehicle shall be punished with imprisonment for a term which may extend to two years but which shall not be less than fifteen days or with fine which may extend to two hundred thousand rupees but which shall not be less than thirty thousand rupees or both.
(3) The offence under subsections (1) and (2) shall be cognizable.]
Illegal number plate holders beware. The Excise Department has teamed up with Special Monitoring Unit Punjab to launch a crackdown in
propakistani.pk
The police have started a campaign against vehicles bearing ‘AFR’ or fancy number plates.
tribune.com.pk
It was an important measure taken during National Action Plan.