The ornamental design for a steppedbracket, as shown and described.
FIG. 1 is a top plan view of the stepped bracket showing my new design;
FIG. 2 is a bottom plan view thereof;
FIG. 3 is a right side elevational view thereof;
FIG. 4 is a left side elevational view thereof;
FIG. 5 is another side elevational view thereof; and,
FIG. 6 is another side elevational view thereof.
The broken line showing of the text reading “logo” is included for the purpose of illustrating environment use only and forms no part of the claimed design.