Bulk　shear　wave　(BSW)　transducers　are　usually　used　to　generate　bulk　shear　waves　to　detect　defects.　In　the　study,　we　generated　guided　waves　in　a　steel　plate　for　defect　detection　with　a　BSW　transducer.　A　0.5-MHz　BSW　transducer　was　coupled　on　a　steel　plate　(1200　mmx610　mmx0.2　mm)　with　a　couplant.　We　firstly　identified　the　generated　wave　modes　and　then　experimentally　validated　the　propagation　directions.　The　guided　waves　were　classified　into　Lamb　waves　(S-0　and　A(0)　modes)　and　shear　horizontal　waves　(SH0　mode)　and　the　primary　modes　were　S-0　and　SH0　propagating　in　two　perpendicular　directions.　In　this　way,　rectangular　through-thickness　notches　with　the　orientations　of　0　degrees　and　90　degrees　in　the　plate　were　detected　by　S-0　and　SH0　modes　with　a　BSW　transducer.　The　results　validated　that　the　S-0　mode　or　SH0　mode　might　be　used　to　detect　the　defects　by　turning　the　BSW　transducer　and　that　the　BSW　transducer　could　excite　SH0　mode　to　detect　rectangular　cracks　of　0　degrees　and　90　degrees　and　excite　So　mode　to　detect　the　cracks　of　0　degrees.　The　study　provided　a　fast　and　convenient　method　to　generate　Lamb　and　SH　waves　for　defect　detection.