Pioneer Nuts & Bolts Pvt. Ltd manufactures Heavy Hexagonal Structural Bolts. Pioneer Nuts & Bolts Pvt. Ltd is an ISO 9001: 2000 certified company. The Company also offers various types of nuts, bolts, washers, threaded bars, screws, rivets etc. The Heavy Hexagonal Structural Bolts find an application in machineries used in refineries, auto mobile sector, power sector, paper industries, cement industries, railways, defense and steel and ship yard. The Heavy Hexagonal Structural Bolts have size ranging from 1/2" to 2.5". These Bolts are available in phosphate, galvanized [electro] yellow and self, galvanized hot dip, cadmium plating, Teflon and powder finishes.