Hex Flange Bolts
Hex Flange Bolts by Asia Bolts Industries are precision-engineered fasteners featuring an integrated flanged washer beneath the hex head, eliminating the need for a separate washer and providing a wider load-bearing surface for superior clamping performance. Available in serrated and non-serrated flange variants, manufactured to DIN 6921, ASME B18.2.1, and ISO 4162 standards across carbon steel, stainless steel, and alloy steel grades. Produced at our Dubai Investment Park facility under ISO 9001, ISO 45001, and ISO 14001 certified quality systems and exported to 70+ countries across the GCC, Middle East, Africa, and Asia.
✅ Serrated & non-serrated flange options
✅ Standard & custom sizes manufactured on request
✅ Full MTC documentation & traceability
✅ Approved vendor: Saudi Aramco | ADNOC | SABIC
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Hex Flange Bolts – Hexagonal Flange Bolt Manufacturer & Supplier in UAE
Asia Bolts Industries LLC is a specialist Hex Flange Bolt manufacturer and supplier based in Dubai, UAE, with over 25 years of precision fastener manufacturing experience. Our Hex Flange Bolts are designed to deliver superior clamping force distribution, vibration resistance, and joint integrity across automotive, petrochemical, structural, and mechanical engineering applications. With an integrated flange acting as a built-in washer, these bolts reduce assembly time, component count, and the risk of washer misalignment in critical connections.
Hex Flange Bolt Standards & Specifications
Asia Bolts Industries manufactures Hex Flange Bolts in full conformance with internationally recognised standards:
| Standard | Description |
|---|---|
| DIN 6921 | Hexagon bolts with flange – metric, coarse pitch |
| ISO 4162 | Hexagon bolts with flange – small series |
| ASME B18.2.1 | Square and hex bolts & screws – inch series |
| ISO 898-1 | Mechanical properties of carbon and alloy steel bolts |
| ASTM A307 | Carbon steel bolts for general structural use |
| ASTM A325 / A490 | High-strength structural bolts |
| BS EN 1662 | Bolts with flange, small series |
| BS EN 1665 | Bolts with flange, heavy series |
Non-standard flange diameters, bespoke serration profiles, and project-specific drawing requirements are handled by our in-house engineering team.
Materials & Grades Available
| Material | Grade / Specification |
|---|---|
| Carbon Steel | Grade 4.6, 4.8, 8.8, 10.9, 12.9 |
| Alloy Steel | ASTM A193 B7, B7M, B16 |
| Stainless Steel | AISI 304, 304L, 316, 316L, 321, 310S |
| Duplex / Super Duplex | UNS S31803 (2205), S32750 (2507) |
| Exotic Alloys | Inconel 625 / 718, Hastelloy C276, Monel 400, Titanium Gr. 2 / Gr. 5 |
Surface treatment and coating options include zinc electroplating, hot-dip galvanising (HDG), black oxide, mechanical zinc, PTFE (Xylan), Geomet, Dacromet, and phosphate & oil — selected in accordance with the corrosion category, operating temperature, and project specification.
Dimensions & Size Range
| Parameter | Range |
|---|---|
| Diameter | M5 to M64 (metric) | 3/16″ to 2½” (imperial) |
| Length | 10 mm to 300 mm or as per drawing |
| Thread Type | Metric coarse / fine pitch, UNC, UNF |
| Flange Type | Serrated / Non-serrated |
| Property Class | 8.8, 10.9, 12.9 (standard) |
| Tolerance | Grade A per ISO 4759-1 |
| Drive Type | Hex head (standard); hex socket on request |
Full threading and partial threading options available. Left-hand thread manufactured on request.
- 🏗️ High-rise Buildings & Commercial Construction
- 🌉 Bridges, Flyovers & Infrastructure
- ⚡ Power Plants & Substations
- 🛢️ Oil & Gas — Onshore & Offshore Platforms
- 🏭 Petrochemical & Industrial Facilities
- 📡 Transmission Towers & Telecom Structures
- 💧 Water Treatment Plants & Desalination
- 🚉 Rail & Metro Infrastructure
Packaging Information
📦 Standard: Cartons, wooden boxes or pallets based on quantity and customer requirements
🎁 Custom: Polybag + carton on request
🚢 Export: Fumigated pallets available
📋 Each box includes inspection certificate
Delivery Information
📦 Lead Time: Stock items: 1-5 days | Custom manufacturing: 7-30 days
🚢 Shipping Methods: Air freight, sea freight, or land transportation. FOB, CIF, DDP terms available.
📋 Full export documentation provided with every shipment: Commercial Invoice, Packing List, MTC, Bill of Lading, and Certificate of Origin
☑ Saudi Aramco Approved: Recognized vendor for critical upstream and downstream projects.
🔩 Custom Manufacturing: We produce non-standard lengths and diameters based on your drawings.
🏅 Triple ISO + CE Certified: ISO 9001 Quality, ISO 45001 Safety, and ISO 14001 Environmental certification, plus CE marking for European market compliance.
🏭 32,260 sqm Facility: The largest fastener manufacturing complex in the Middle East, equipped with advanced CNC machinery and full in-house production capability.
🔬 In-House Testing Lab: Full material traceability from raw stock to finished product. Tensile, hardness, dimensional, and spectroscopic testing all performed on-site.
🚚 Global Delivery: Shipped to 70+ countries via established logistics networks. Flexible packaging, documentation and third-party inspection support available.
