We are renowned manufacturer, supplier and exporter of high tensile fasteners in India.  Available in 8.8, 10.9, 12.9, B7, B7M, B16, L7 and L7M grades. Big bolt nut is the biggest manufacturer for larger diameter high tensile fasteners & nuts in India, we have a monthly production of over 300 tons in bigger sizes from M-24 to M-64 in 8.8 and 10.9 grade. These high tensile fasteners are used in energy sector like wind, solar, thermal and hydro energy.