Haydon Bolts, Inc., an AISC Associate member company, is a family owned manufacturer specializing in domestic structural bolts and anchor rods, since 1864.  We carry the largest inventory of "Melted and Manufactured in the U.S." structural bolts and rods in the country. Our quick turnaround on manufacturing and galvanized orders, combined with next day delivery (from Maine to North Carolina), allows you to complete your project within budget and on time.