FastenFit Industries manufactures and supplies high-strength Hex Bolts and Structural Bolts engineered for precision, durability, and reliability. Designed for heavy-duty applications, these bolts provide superior fastening solutions in construction, infrastructure, machinery, automotive, and industrial projects.
Our bolts are produced in compliance with ISO, DIN, ASTM, BS, JIS and IS standards, ensuring international quality and performance benchmarks. With advanced heat treatment and surface finishing, we guarantee exceptional tensile strength, corrosion resistance, and long service life.
Grades : 4.6, 8.8, 10.9, 12.9, B7, L7, B16, (Carbon Steel / Alloy Steel), Stainless Steel 316, 304, 316L, 304L, B8M, B8, Special Grade like Duplex, Super Duplex, Monel, Incoloy, Hastelloy
Size Range: M6 to M72 (¼” to 3”)
Standards: ISO 4014, ISO 4017, DIN 931, DIN 933, ASTM A325, ASTM A490, IS 1364, IS 3757, BS EN 14399
Thread Types: Full Thread / Half Thread
Surface Finish: Black Oxide, Hot Dip Galvanized, Electro Zinc Plated, Phosphated, Zinc Flake, Zn+Ni, PTFE 1070, Xylar 1014
Applications: Structural Steel Assemblies, Bridges, Heavy Machinery, Railways, Oil & Gas, Automotive, and General Engineering











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