Fastener maker Simpson Manufacturing Co. reported net sales of $130.7 million for its fourth fiscal quarter of 2011, a 9.3% increase over sales of $119.6 million for the same quarter of 2010. The Pleasanton, Calif.-based company had income, net of tax, of $4.9 million for the fourth quarter of 2011 compared to a loss, net of tax, of $4.5 million for the fourth quarter of 2010.