The Coka family says they fear for their lives after the bail application.
The case will be back in court on 30 June.
The family of Mgcini and Zenzele Coka says they will be sleeping with one eye open after the five men charged with the brothers' murder were each released on R10 000 bail on Friday.
Orchard Klingenberg, Danie Malan, Cornelius Greyling, Ignitius Steinberg and Senzele Yende were granted bail after the Piet Retief Magistrate's Court ruled there was no evidence the men would interfere with or intimidate witnesses as was argued by the State during their bail application.
The brothers' nephew, Sandile Coka, said they were unhappy about bail "because we are not safe".