Manufacturing and exporting high-tensile bolts, nuts, studs, and washers engineered for oil & gas, petrochemical, nuclear, and structural applications worldwide.
As a fasteners manufacturer Belgium buyers have trusted for years, Ananka Group produces and exports a full range of fasteners in various sizes, grades, and scales, maintaining international quality standards recognized across the industry.
We consider our clients as partners in the distribution of our products, delivering fasteners used in heat exchangers, instrumentation, offshore buoyancy and petrochemical systems, seawater environments, and pump, valve, and nuclear applications where reliability is non-negotiable.
As a leading fasteners supplier Belgium EPC contractors rely on, we manufacture bolts in a wide range of types — Stud Bolts, Hex Head Bolts, Socket Hexagon Head Screw Anchor Bolts, U-Bolts, J-Bolts, Mushroom Head Square Neck Bolts, T-Head Bolts, Wing Screws, Eye Bolts, Foundation Bolts, and Structural Bolts — each finished to a flawless surface standard.
Fasteners are supplied in exotic materials including Inconel and Monel alongside standard alloy and stainless steel grades, matched to the corrosion resistance and temperature service each project requires. Whether you need a fasteners stockist in Belgium for urgent MRO needs or a manufacturing partner for custom fasteners, Ananka Group supports both.
Beyond Belgium, the same certified fasteners and documentation support buyers across the rest of Europe, the Middle East, and Africa — including Germany, Ireland, the UK, Poland, Sweden, Austria, South Africa, and Malaysia among 50+ export markets worldwide.
Ananka Group manufactures and stocks the full fastener range Belgian buyers need for structural, process, and marine applications — sourced, tested, and exported from our India facility.
| Standard | Description | Measurement System |
|---|---|---|
| DIN 931 | Hex Head Bolts | Metric |
| DIN 933 | Hex Head Bolts, Full Thread | Metric |
| DIN 6914 | Heavy Hex Bolts | Metric |
| ANSI/ASME B18.2.1 | Square & Hex Head Bolts | Inch Series |
| ANSI/ASME B18.2.3.6M | Heavy Hex Bolts | Metric |
| ANSI/ASME B18.2.3.7M | Heavy Hex Structural Bolts | Metric |
| ISO 4014 | Hex Head Bolts with Shank | Metric |
| ISO 4017 | Full Thread Hex Head Bolts | Metric |
| ASTM A193 / ASME SA193 | Bolting Materials for High-Temperature/Pressure Service | Inch & Metric |
| ASTM A194 / ASME SA194 | Nuts for Bolts, High-Pressure/Temperature Service | Inch & Metric |
| Fastener Type | Size Range | Property Class / Grade | Standard |
|---|---|---|---|
| Socket Head Cap Fasteners (ASTM F568) | M1.6 – M64 | 12.9 | ASME B18.3.1M / ISO 4762 / ASTM A574M |
| Hex Head Fasteners | M4 – M80 | 10.9 (1040 N/mm² min) | ISO 4017 / ISO 4014 |
| HT Hex Nut | M6 – M42 | Class 10 | ISO 4032 |
| HT Nylock Nut | M6 – M24 | Grade 8 & 10 | DIN 982 / DIN 985 |
| Hardened Steel Washer | 12mm – 56mm | Rockwell 26–45 (HDG) | ASTM F436M |
| Square Section Spring Washer | 3mm – 39mm | HV 430–530 | DIN 7980 |








| Program | Detail |
|---|---|
| Manufacturer Test Certificate | EN 10204 / 3.1B, plus Raw Materials Certificate, Third-Party Inspection, and Buyer Inspection on request. |
| Quality Assurance | Every fastener is inspected at each stage from raw material purchase to dispatch, visually examined for conformity to ASTM, ASME, DIN, and EN standards. |
| Surface Finishes | Zinc (white/yellow/black/blue), black oxide, Dacromet, Geomet, zinc-nickel plating, anodizing, nickel plating, passivation (stainless steel), BZP, HDG, Sherardizing, PTFE, and Xylan coatings. |
| Production Process | Cold forging (M2–M24), hot forging (M24–M100), precision machining, and CNC production for customized connecting elements. |
As a fasteners manufacturer Belgium buyers can verify independently, all documentation is issued against internationally recognized standards rather than in-house claims.
Full specification text for DIN standards such as DIN 931, DIN 933, and DIN 934 is maintained by DIN, the German Institute for Standardization. ASTM standards referenced above, including ASTM A193 and ASTM A194, are maintained by ASTM International. ASME B18-series bolt and nut standards are published by ASME, and ISO metric fastener standards (ISO 4014, ISO 4017, ISO 4032) are maintained by ISO — the same body Belgium's own national standards institute, NBN, adopts and publishes locally.
Local fasteners dealers and distributors in Belgium can also source directly from Ananka Group's export desk, with Manufacturer Test Certificates per EN 10204/3.1B issued on every shipment.
For our full range of MIL-SPEC and NAS defense fastener specifications beyond commercial and process-industry hardware, see our military and defense fastener catalog.
Send us your drawing, standard, or size range — Ananka Group quotes bolts, nuts, studs, and washers in alloy steel, stainless steel, Inconel, and Monel with EN 10204/3.1B certification on every shipment.
Prefer email? sales@anankafasteners.com