Caliper assembly for a disc brake comprising a caliper body and at least one pin; wherein said pin shank is suitable for being inserted in said at least one pin seat through said second seat opening; and wherein said pin shank comprises a first shank portion, suitable for being received in said at least one pin seat when in operative conditions, and a second shank portion, suitable for projecting canti-levered with respect to said at least one first surface, when in operative conditions; and wherein said first shank portion comprises at least one perimetric protuberance of greater extension along the transversal direction with respect to the adjacent shank portions; and wherein said at least one perimetric protuberance is suitable for forming a friction-fit between said first shank portion and said pin seat; and wherein said pin head comprises at least one under-head portion that extends from said pin head towards said pin shank to form a collar; and wherein said first shank portion comprises at least one groove, arranged between said collar and said perimetric protuberance, said groove forming a recessed shank portion, of shorter extension along the transversal direction with respect to the transversal extension of said collar and said at least one perimetric protuberance; and wherein said collar is suitable for upsetting, during the step of press-fitting said pin in said pin seat, said mouth portion of said caliper body in said groove, so as to form, through deformation of said mouth portion, a locking tooth suitable for cooperating with said groove to lock said at least one pin in said at least one pin seat.