California-based casual clothing maker Quiksilver Inc on Monday revealed it had agreed a $7.5 million deal to buy Beach Street Inc, the owner and operator of 26 Quiksilver outlet stores, in an all stock transaction. Quiksilver said in a statement it expects the deal to add around $12m in revenue to its fiscal 2003 results and plans to integrate the operations of Beach Street with its own QS Retail Inc division.