BIS Certification for Step Bolts for Steel Structures

Step bolts are an unusual entry in the fastener list, because their job is not really to hold two pieces of steel together - it is to give a maintenance technician something safe to stand on, fifty or a hundred feet up a transmission tower. Bolted in a vertical line up a tower leg, they form the only climbing access most towers have, which means their load-bearing requirement is really about human weight, foot pressure and repeated use over years, not just static structural load.

That practical, safety-first purpose is exactly why step bolts were included in the notified fastener list - a bent or undersized step bolt is not a quality nuisance, it is a fall hazard.

BIS testing for step bolts checks the bolt's dimensions, thread engagement into the structure, bending and load resistance, and the steel's hardness and chemical composition. Since step bolts are almost always hot-dip galvanised for long outdoor service, coating thickness and adhesion are checked too, to confirm the bolt will not corrode and weaken at the exact point a worker is putting their weight on it years down the line.

Manufacturers supplying step bolts into the Indian market - typically to tower fabricators, power utilities and telecom infrastructure companies - need this BIS licence, held in the manufacturer's name. The order's standard exemptions apply: production made purely for export, step bolts imported as part of a finished tower assembly, and small Udyam-registered micro units below specified limits. Full detail is on our main fasteners page.

The path you take depends entirely on where your factory is. If you manufacture in India, the process runs through BIS's standard product certification route - sample testing, factory documentation and a factory inspection before the licence is issued. We have laid out every step on our BIS Certification for Indian Manufacturers page.

If your factory sits outside India, you will go through the Foreign Manufacturers Certification Scheme, which adds an Authorized Indian Representative and typically an overseas factory audit. The full breakdown is on our FMCS guide for foreign manufacturers.

Fasteners are a deceptively tricky category - 19 products, overlapping standards, easy-to-miss exemptions and a demanding factory audit. We work across the entire fasteners QCO, not as a general firm dabbling, but as a team that knows this product family inside out and prepares every document to exact BIS specification so your file keeps moving - for manufacturers in India and around the world.