GI Hex Nut Bolt Set M6 to M24 Galvanised | Structural Fasteners for Construction & Industrial Assembly | Excellent Enterprises
The Excellent Enterprises GI Hex Nut Bolt Set M6 to M24 Galvanised is a heavy-duty structural fastening solution engineered for construction, fabrication, infrastructure, mechanical assembly, and industrial installation applications where strength, dimensional precision, and corrosion resistance are critical. Manufactured in standard metric sizes from M6 to M24, these galvanised hex bolt and nut sets are designed for reliable fastening performance in both indoor and outdoor environments. Whether used in structural steel erection, PEB assembly, machinery installation, telecom towers, or civil infrastructure projects, these galvanised fasteners provide dependable mechanical clamping strength with enhanced resistance against rust, atmospheric corrosion, and environmental degradation.
Why Galvanised Fasteners Matter
Fasteners are often the smallest visible components in a structure, yet they remain among the most critical load-bearing mechanical elements.
In outdoor and semi-exposed environments, ordinary steel bolts rapidly degrade due to:
- Atmospheric oxidation
- Rainwater exposure
- Coastal salinity
- Industrial humidity
- Chemical pollutants
- Temperature cycling
Corroded fasteners lose:
- Tensile strength
- Thread integrity
- Clamp load performance
- Nut engagement reliability
- Long-term structural safety
Galvanisation protects steel through zinc-based corrosion resistance.
Core performance benefits include:
- Rust protection
- Extended outdoor service life
- Better atmospheric corrosion resistance
- Lower maintenance replacement frequency
- Improved fastening durability
- Reliable structural integrity
For infrastructure and industrial fastening, galvanised bolt assemblies remain the preferred practical solution.
Size Selection Guide
Choosing the correct bolt diameter directly affects joint strength, load transfer, and installation suitability.
M6 to M10 (Light Duty Fastening)
Best suited for:
- Electrical mounting
- Panel assemblies
- Light structural brackets
- Machine guarding
- General workshop fastening
Compact and versatile for smaller assemblies.
M12 to M16 (Medium Structural Fastening)
Recommended for:
- Steel fabrication
- Mechanical equipment mounting
- Frame structures
- Support systems
- General construction assembly
The most common industrial fastening range.
M20 to M24 (Heavy Structural Fastening)
Designed for:
- Structural steel erection
- PEB construction
- Tower installations
- Heavy machinery anchoring
- Infrastructure bolted joints
For high-load structural applications.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Name | GI Hex Nut Bolt Set |
| Size Range | M6 to M24 |
| Thread Form | Metric ISO Coarse Thread |
| Bolt Grade | 8.8 |
| Nut Class | Class 8 |
| Surface Finish | Galvanised |
| Coating Type | Hot Dip / Electro Galvanised |
| Zinc Coating Thickness | 45–85 Micron (HDG) |
| Bolt Standard | IS 1364 / DIN 931 / ISO 4014 |
| Nut Standard | DIN 934 / ISO 4032 |
| Washer Standard | IS 2016 / DIN 125 |
| Head Type | Hexagonal |
| Material | High Tensile Steel |
Compatible Applications
Suitable for:
- Structural steel fabrication
- PEB construction
- Industrial machinery installation
- Transmission towers
- Telecom infrastructure
- Warehouse erection
- Civil engineering assembly
- Railway structures
- Equipment mounting
- Mechanical fastening systems
- Agricultural equipment assembly
- Outdoor infrastructure works
Applications
The Excellent Enterprises GI Hex Nut Bolt Set is widely used wherever secure corrosion-resistant fastening is essential.
Common industrial applications include:
Steel structure bolting
Pre-engineered building assembly
Industrial shed erection
Transmission tower fastening
Telecom tower installation
Bridge support assemblies
Heavy equipment mounting
Railway infrastructure fastening
Mechanical fabrication works
Construction structural connections
Its broad utility makes it one of the most demanded industrial fastener categories.
Why Excellent Enterprises
Excellent Enterprises supplies industrial fastening products designed for dependable mechanical performance and practical field installation.
Why professionals choose Excellent Enterprises:
- Reliable dimensional accuracy
- Structural-grade fastener quality
- Corrosion-resistant galvanised finish
- Multiple industrial size options
- Construction-ready fastening solutions
- Heavy-duty clamping reliability
- Suitable for indoor & outdoor use
- Industrial compliance-oriented supply
In structural fastening, consistency and quality directly impact connection integrity.
FAQ
What is a GI hex nut bolt set used for?
GI hex nut bolt sets are used for structural fastening, steel fabrication, machinery mounting, construction assembly, and industrial bolted connections.
What does GI mean in nut bolts?
GI refers to galvanised iron or zinc-coated steel fasteners designed for corrosion resistance in exposed environments.
Are these suitable for outdoor use?
Yes. Galvanised coating helps protect against rust, moisture, and atmospheric corrosion, making them suitable for outdoor applications.
What is Grade 8.8 in bolts?
Grade 8.8 indicates a high tensile structural fastener with strong mechanical performance suitable for industrial and structural use.
Which size should I choose?
Size depends on load requirement, hole diameter, structural design, and application type. M6–M10 suits lighter assemblies, while M16–M24 supports heavier structural work.
Are these used in construction projects?
Yes. These fasteners are widely used in construction, infrastructure, industrial fabrication, telecom towers, steel structures, and machinery installations.
