
Technical specifications, available grades, and certified brands
| Material | Galvanized Iron (zinc coated mild steel) |
| 18 Gauge Diameter | 1.22 mm |
| 20 Gauge Diameter | 0.91 mm |
| 22 Gauge Diameter | 0.71 mm |
| Coating | Hot-dip galvanized zinc coating |
| Tensile Strength | 350-550 MPa |
| Packaging | Coils of 25 kg bundle |
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Where to use GI Binding Wire
How to choose the right gi binding wire
GI binding wire is preferred over MS binding wire because the galvanized zinc coating prevents rusting and corrosion. This is especially important in Mumbai's humid and coastal climate where uncoated wire can rust within days.
For most construction work, 20 gauge is the standard choice. Use 18 gauge for heavy reinforcement (20mm bars and above) and 22 gauge for lighter slab work with thinner bars. The rule of thumb is: thicker the TMT bar, thicker the binding wire.
Buy in 25 kg bundles for the best rates. A typical residential project of 1000 sq ft requires approximately 15-20 kg of binding wire.

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Why builders across Mumbai choose us for gi binding wire
Only ISI-certified products. Mill test certificates with every delivery.
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Order before 12 PM, get delivery the same day across MMR.
Trusted by contractors, engineers, and builders across Mumbai.
“We switched to TMT BAR for our 3-tower project in Panvel. JSW Neosteel delivered same-day with proper mill test certificates. Saved us 2 days of delays compared to our previous supplier.”
“As an architect, I recommend TMT BAR to all my clients. They stock all major brands, share test certificates proactively, and their pricing is transparent. No hidden costs.”
Materials commonly ordered alongside gi binding wire for construction projects

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