Shares of Fastenal Co. FAST, +1.44% slumped 3.0% in premarket trade Wednesday, after the maker of fasteners and manufacturing tools reported first-quarter profit and sales that increased just in line with expectations. Net income that rose to $174.3 million, or 61 cents a share, from $134.2 million, 46 cents a share, in the same period a year ago. The FactSet consensus for earnings per share was 61 cents. Revenue rose 13% to $1.19 billion, matching the FactSet consensus, as the acquisition of Manufacturers Supply Company and higher unit sales contributed to growth. Accounts receivable increased 19.8% to $688.6 million, while inventories grew 12.7% to $1.13 billion. The stock had lost 0.5% year to date through Tuesday, while the S&P 500 SPX, +1.67% had slipped 0.6%.