Special Alloy Fastener Supplier to Singapore
ASTM A453 Gr 660 | S32750 / S32760 | Inconel | Monel | Hastelloy | Titanium
Who We Are
Founded in 2003, Uni Circle Fasteners (UCF) is a Malaysia-based specialist supplier of high-performance, custom-made, and special-alloy fasteners, supporting clients across Singapore and Southeast Asia.
We supply hard-to-find and critical fasteners including ASTM A453 Grade 660, Super Duplex S32750 / S32760 , Monel 400 / K500, Inconel 625 / 718, Incoloy, Nimonic, Hastelloy, Titanium, as well as fasteners to ASTM A1082, ASTM F468 and ASTM F593.
We regularly support EPC Contractors, Valve Manufacturers, Pump Manufacturers, Oil & Gas Equipment Makers, and Fabricators requiring reliable fasteners for critical applications.
With established global sourcing and practical logistics support from Malaysia to Singapore, we supply bolts, nuts, stud bolts, washers, and coated fasteners where performance and reliability are critical.
Our Special Alloy Fasteners
We supply a wide range of materials and specifications :
- ASTM A453 Grade 660 (Class A/B/C/D)
High-temperature bolting for turbines, boilers, and power plants.
- Super Duplex S32750 / S32760
Corrosion-resistant fasteners for offshore, subsea, and chemical environments.
- Monel 400 / K500
Seawater-resistant fasteners for marine and offshore use
- Inconel 625 / 718
High-strength fasteners for offshore and petrochemical applications.
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Incoloy 800 / 825For heat exchangers and high-temperature service.
- Nimonic 75 / 80A
Used in turbine and elevated temperature applications.
- Hastelloy C-22 / C-276
For aggressive chemical environments.
- Titanium Grade 2 / 5
Lightweight and corrosion-resistant for desalination and offshore systems.
Applications in Singapore Industries
Oil & Gas / Offshore & Onshore
LNG plants, pipelines, refineries, petrochemical facilities, and EPC contractors
Marine & Shipbuilding
Seawater systems, pumps, valves, and offshore structures
Petrochemical & Chemical
Processing plants, tanks, piping systems, and reactors
Power Generation
Turbines, boilers, and high-temperature bolting
Desalination & Water Treatment
Corrosion-intensive and chloride-rich environments
Why Work With UCF
- Established since 2003 with specialised fastener focus
- Supporting EPC, OEM, and fabrication project requirements
- EN 10204 3.1 certification
- Experience supporting ASTM, ASME, NACE MR0175 / ISO 15156, NORSOK, API and project specifications
- Custom sizes and non-standard fasteners available upon request
Company Profile
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