Haydon Bolts, Inc. is a 152-year -old leading manufacturing and distributor of all kinds of structural bolts and electric tools to the heavy steel and concrete construction industries. Haydon also manufactures large diameter(5/8to 21/2) hot forged headed bolts of all grades as well as bent anchor rods and plate anchors. Haydon is now stocking fully domestic weld studs. Haydon operates out of its 60.000 square foot manufacturing and distribution facility in Philadelphia. Haydon delivers the next day from Maine to North Carolina. Haydon is an associate member of AISC. (less)