Galvanized Hex Bolts (Hot Dip Galvanized / Zinc Plated)
Heavy-duty galvanized hex head bolts engineered for outdoor and corrosive environments. Conforming to DIN 933 and ASTM A325/A325M standards, our galvanized hex bolts deliver exceptional corrosion resistance for construction, infrastructure, marine, and industrial applications where atmospheric exposure is a concern.
Technical Specifications
| Parameter | Specification |
|---|---|
| Standard | DIN 933, ASTM A325/A325M, ISO 4017 |
| Thread Type | Full Thread (Metric Coarse) |
| Size Range | M6 – M64 |
| Length Range | 12mm – 500mm |
| Material | Carbon Steel (Grade 4.8, 8.8, 10.9) |
| Coating Type | Hot Dip Galvanized (HDG), Zinc Plated (Electro-Galvanized), Dacromet |
| Coating Thickness | HDG: 45-85 μm / Zinc Plated: 5-25 μm |
| Salt Spray Test | HDG: 500+ hours / Zinc Plated: 72-200 hours |
| Tensile Strength | 400-1040 MPa (depending on grade) |
| MOQ | 1,000 pcs (standard), 5,000 pcs (custom) |
| Lead Time | 7-15 days (standard), 20-30 days (custom) |
| Packaging | Bulk cartons / Wooden pallets / Custom labeling available |
Available Sizes
M6, M8, M10, M12, M14, M16, M18, M20, M22, M24, M27, M30, M33, M36, M42, M48, M56, M64
Applications
- Outdoor structural steel connections
- Bridge and highway construction
- Transmission towers and power infrastructure
- Marine and coastal installations
- Solar panel mounting systems
- Agricultural equipment
- Fencing and guardrail systems
Certifications
ISO 9001:2015 certified manufacturing. Material test certificates (MTC) per EN 10204 3.1/3.2 available. RoHS and REACH compliant. ASTM A153 hot dip galvanizing specification.
Frequently Asked Questions
Hot dip galvanized or zinc plated — which should I choose?
Hot dip galvanizing (HDG) deposits 45-85 μm of zinc and withstands 500+ hours of salt spray — the right choice for outdoor, marine and infrastructure exposure. Electro-zinc plating (5-25 μm, 72-200 hours) is more economical for indoor and dry environments.
What sizes are available?
Available sizes range from M6 – M64. Contact us with your required sizes and quantities for a quick quote.
What is the MOQ and lead time?
The MOQ is 1,000 pcs (standard), 5,000 pcs (custom). Lead time is 7-15 days (standard), 20-30 days (custom). Mixed-size containers and larger orders are negotiable — send us your requirement for a quick quote.
Do you provide material certificates?
Yes. Material test certificates per EN 10204 3.1 are available on request, and our manufacturing is ISO 9001:2015 certified. RoHS and REACH compliance documentation can also be provided.
