Christopher Rennie, 27, and Anthony Wright, 23, approached the schoolboy as he walked home from a shop in January this year.
The pair forced him into a nearby flat, held him against his will and subjected him to a sustained assault.
The victim managed to escape when he was taken to his home and ordered to steal money from his mother.
The pair were found guilty of abduction, assault and robbery on Monday 13 August following a trial at the High Court in Glasgow.
Wright has been sentenced to seven years in prison, whilst Rennie was jailed for six years and nine months.
Both will be supervised for a further two years after they are released.
Detective Chief Inspector Fil Capaldi from Renfrewshire and Inverclyde CID said:“These two despicable individuals preyed on an innocent teenage boy who was simply making his way home from the shop.
“They blindfolded, assaulted and terrorised him, subjecting him to a sickening and degrading assault and made him genuinely fear for his life.
“This crime truly shocked members of the public who were left absolutely disgusted at what these individuals did. They are clearly a danger to society and have no place in our community.
“Thankfully the victim saw an opportunity to escape and alert the police, and detectives were able to swiftly apprehend the perpetrators and secure vital evidence.
“I hope that today’s outcome, which reflects the gravity of the crime, provides some closure to the victim and his family and will enable them to move past this horrific experience.”