The invention relates to a crimp connection system 1 for electrical cables, comprising: an electrical cable having a stripped cable end 10, a fastening sleeve 20, wherein the stripped cable end 10 is arranged at least partially within the fastening sleeve 20, wherein the fastening sleeve 20 comprises a number of fastening protrusion 23 extending from the interior and/or outer surfaces of the fastening sleeve, wherein the fastening protrusions are distributed over the interior and/or outer surfaces of the fastening sleeve and a contact terminal 30, comprising a crimp portion, wherein the fastening sleeve 20 is arranged at least partially within the crimp portion 31.