Galvanized hexagon bolt · All strength grades · Fine thread & UNC · DIN 931/933 · UAE stock
High-tensile galvanized hex bolt for structural steel, construction and heavy engineering. Supplied in the full range of strength grades —4.8, 8.8, 10.9 and 12.9— with strong clamping force and reliable corrosion resistance, fully or partially threaded to DIN 933 and DIN 931 from M6 up to M40, in coarse, fine thread and UNC.
Made to international hex bolt standards
4.8, 8.8, 10.9 & 12.9 high-tensile
Ready inventory, UAE & GCC delivery
Project quantities at best price
A GI hex bolt (galvanized hexagon bolt) is a carbon-steel bolt with a six-sided head and a zinc galvanized coating that protects it against rust and corrosion. Made to DIN 931 (partially threaded) and DIN 933 (fully threaded), it is supplied in the full range of strength grades — 4.8, 8.8, 10.9 and 12.9 — and in coarse, fine thread and UNC, delivering high tensile strength and dependable clamping force for demanding structural and mechanical joints.
Hamza Fasteners supplies galvanized hex bolts from M6 to M40 in a full range of lengths, ideal for steel structures, cladding, scaffolding, tank fabrication, MEP works and general fabrication. The galvanized finish makes them well suited to outdoor and marine-influenced environments across the Gulf. Buy hex bolts at the best price in Dubai from a trusted galvanized fastener supplier serving the UAE, Saudi Arabia, Qatar, Kuwait, Oman and East Africa — in single boxes or bulk wholesale quantities.
Dimension reference to DIN 931/933 for grade 8.8 galvanized hexagon bolts. Confirm exact lengths and quantities for your order with our team.
This datasheet shows one representative size and grade for reference only. The GI Hex Bolt is supplied in the full range of sizes, lengths, grades and finishes — not a single option. Tell us what you need and we will confirm exact availability, grade and finish and price.
| Thread (d) | Pitch (mm) | Width A/Flats (s) | Head Height (k) |
|---|---|---|---|
| M6 | 1.0 | 10 | 4.0 |
| M8 | 1.25 | 13 | 5.3 |
| M10 | 1.5 | 17 | 6.4 |
| M12 | 1.75 | 19 | 7.5 |
| M16 | 2.0 | 24 | 10.0 |
| M20 | 2.5 | 30 | 12.5 |
| M22 | 2.5 | 32 | 14.0 |
| M24 | 3.0 | 36 | 15.0 |
| M27 | 3.0 | 41 | 17.0 |
| M30 | 3.5 | 46 | 18.7 |
| M33 | 3.5 | 50 | 21.0 |
| M36 | 4.0 | 55 | 22.5 |
| M39 | 4.0 | 60 | 25.0 |
| M40 | 4.0 | 60 | 25.0 |
| Product Type | Hexagon Bolt (Hex Bolt) |
|---|---|
| Standard | DIN 931 / DIN 933 |
| Material | Carbon Steel |
| Strength Class | 8.8 |
| Finish | Galvanized (GI) / Zinc |
| Size Range | M6 – M40 |
| Threading | Full or partial thread |
Steel frames, columns & beams
Façades, cladding & scaffolding
Equipment & plant assembly
Storage tanks & steel fabrication
HVAC, piping & support works
Maintenance & workshop use
Stocked in Deira, Dubai and delivered fast across the region. Wherever you are building, we supply galvanized hex bolts in stock and project quantities.
Hamza Fasteners is a trusted GI hex bolt supplier in Dubai and across the United Arab Emirates — Abu Dhabi, Sharjah and Ajman — with regular export supply to Saudi Arabia (Riyadh, Jeddah, Dammam), Qatar (Doha), Kuwait City, Oman (Muscat) and key East and West African markets including Tanzania (Dar es Salaam), Kenya (Nairobi and Mombasa), Nigeria (Lagos) and Ethiopia (Addis Ababa). Looking for a "hex bolt supplier near me" or the best galvanized hex bolt price in your city? Send us your size list for a same-day quote.
Share the diameter, length, grade and quantity. We will confirm stock and send a quick quote with the datasheet and best price.
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