Bolt and nut assemblies for transmission line towers and lattice steel structures, hot dip galvanized for decades of outdoor service without maintenance. Supplied as matched assemblies with the nut tapped oversize after galvanizing so it runs freely on site.
Supplied in bulk to distributors, importers and hardware brands worldwide, including private-label packaging in the customer's own branding. Non-standard sizes and made-to-drawing variants are produced to order, with a material test certificate on every consignment.
| Product Type | Hexagon head tower bolt and nut assembly, with spring or pack washer |
| Standards | IS 12427, IS 1363, IS 1367, ASTM A394 |
| Material Grades | Property class 4.6, 5.6 and 8.8 (ISO 898-1 / IS 1367); ASTM A394 Type 0 / 1 |
| Size Range (Metric) | M12 to M24 |
| Size Range (Imperial) | 1/2" to 1" UNC |
| Length Range | 25 mm to 250 mm |
| Head / Drive Type | Hexagon head and hex nut; step bolts with two nuts |
| Finish | Hot dip galvanized to IS 1367-13 / ISO 10684 / ASTM F2329; nuts tapped oversize after galvanizing |
| Custom Options | Step bolts, anti-theft (TA) bolts, pack and spring washers, made to drawing |
| Certification | Material Test Certificate, EN 10204 3.1 |
| Packaging | Boxed in standard counts, bulk cartons, or private label to customer specification |
