Fasteners
High-integrity bolting and fastener solutions engineered by Tri-Star Industries —
critical fasteners, U-bolts, pipe clamp, and custom-engineered fasteners with surface coating for extreme industrial environments.
Specialized Materials for Extreme Conditions
We offer an extensive range of materials engineered for superior mechanical strength, high-temperature resilience, and corrosion resistance:
- Carbon Alloy Steel: B7, B7M, L7,L7M, B16. 20Cr
- Nickel Alloys: Inconel, Incoloy, Hastelloy, Monel 400, K500
- Stainless Steel & Duplex: B8, B8M, B8T, Duplex, Super Duplex, Titanium
- Specialty Bronzes: Phosphor Bronze, Manganese Bronze, Silicon Bronze (on request)
Extensive Inventory of Materials
| Material | Bolt Grade | Nut Grade | Diameter |
|---|---|---|---|
| Alloy Steel | ASTM A193 : B7, B7M | ASTM A194 2H, 2HM | 1/2" - 4" |
| ASTM A193 : B16 | ASTM A194 7L | 1/2" - 4" | |
| ASTM A320 : L7, L7M, L43 | ASTM A194 7L, 7ML | 1/2" - 2 1/2" | |
| Stainless Steel | ASTM A193 : B8, B8M, B8T, B8MLN, B8CLNCuB, B8MLCuN, B8ML4CuN (Class 1, 1A, 1B, 1C, 1D, 2, 2B, 2C) |
ASTM A194 8, 8A, 8M, 8MA, 8T, 8MLN, 8CLNCuB, 8MLCuN, 8ML4CuN | 1/2" - 4" |
| ASTM A320 : B8, B8M, B8T, B8MLN (Class 1, 1A, 2) |
ASTM A194 8, 8A, 8M, 8MA, 8T, 8MLN | 1/2" - 4" | |
| High Temperature Stainless Steel | ASTM A453 : 660 (Class A, B, C, D) | 1/2" - 4" | |
| Super Duplex | ASTM A1082 : UNS 32750, 32760S | 1/2" - 4" | |
| Non-Ferrous | ASTM F468 : UNS C63000 - Nickel Aluminium Bronze Alloy | 1/2" – 1 1/2" | |
| High Temperature Steel | EN10269 : 20CrMoVTiB4-10 / 1.7729 | 1/2" - 4" | |
| CRA |
- Monel K500 - Nickel Copper Alloy - Inconel : 625, 718, 925 - Nickel Chromium Superalloy (NORSOK M-650) - S20910 |
1/2" - 4" | |
| Carbon / Alloy Steel | BS EN ISO 898: Grade 8.8, 10.9, 12.9 | BS EN ISO 898: Class 8, 10, 12 | M8 – M39 |
*Grades and diameters are indicative. Confirm per project specifications and standards.
Advanced Plating & Coating for Longevity
- Galvanizing & Plating: NanoGalv, Hot-dip, mechanical galvanized, Zinc-Nickel, Cadmium, and Electroless Nickel plating for heavy-duty protection.
- Fluoropolymer Coatings: Whitford-approved Xylan PTFE coater delivering low-friction, high-durability coatings for offshore and high-pressure applications.
- Custom Coatings: Tailored solutions for corrosion resistance, non-galling, and anti-seizing requirements.
Polytetrafluoroethylene PTFE
Corrosion Resistant and Anti-Seize Coatings
Superior Fluorocarbon Coated Bolts & Nuts
Ceramic/Metallic Base PTFE Topcoat
Zinc Nickel Base PTFE Topcoat
NanoGalv® Coating Technology
Tri-Star Industries Pte Ltd is proud to be the first licensed manufacturer of NanoGalv® by Modumetal, and the preferred supplier of NanoGalv®-coated fasteners across Asia and Australia. Our strategic partnership with Modumetal brings cutting-edge nanolaminated alloy technology to industries that demand superior corrosion protection, mechanical integrity, and service longevity.
NanoGalv® is a commercially available nanolaminated metallic alloy coating applied to carbon steel substrates such as bolts, nuts, washers, and connectors. Engineered to replace traditional coatings like cadmium, hot-dip galvanizing, epoxy, and PTFE, NanoGalv offers up to 10x the corrosion resistance, with no compromise on structural or mechanical performance.
Its nano-layered structure delivers substantial improvements in:
- Corrosion resistance
- Hydrogen embrittlement resistance
- Lubricity & torque control
- Wear resistance
- Stress relief & fatigue performance
Testing, Compliance & Applications
NanoGalv® sets a new standard in corrosion resistance with performance that goes beyond traditional coatings.
Proven Performance
Tested under the toughest conditions, NanoGalv® delivers exceptional durability over 30,000 hours of salt fog exposure and zero red rust in cyclic corrosion tests.
Industry Compliance
Fully meets API, ASTM, and ISO specifications, ensuring reliability for critical applications in oil & gas, marine, and industrial sectors. Want the full compliance list? Contact us today to learn more.
Recognized Across Leading Oil & Gas Standards
NanoGalv® is trusted by major operators and EPCs worldwide, with approvals and qualifications from ExxonMobil, Shell, Chevron, BP, Black & Veatch, Woodside Energy, ConocoPhilips and more—covering key specs like GP 56‑02‑13, PIM‑SU‑5300, and DEP 30.48.00.32. New listings are continuously added.
Stud Bolts & Specialty Bolting Solutions
Crafted from high-quality bars, our stud bolts and nuts are available in plain, Mastercote PTFE coated, cadmium, zinc-nickel plated, galvanized, and electroless nickel finishes.
Fasteners — Product Overview
| Category | Items |
|---|---|
| Stud | Full Threaded Stud Bolt, Double Ended Stud |
| Hex Head Bolt | Hex Bolt, Heavy Hex Bolt |
| Screw | Socket Cap Screw, Countersunk Screw, 12 Point Screw, Jack Screw, Set Screw |
| Nut | Hex Nut, Heavy Hex Nut, Tommy Bar Holes Nut, Spherical Nut, Round Nut |
| Washer | Flat Washer, Square Washer, Spherical Washer, Serrated Washer |
| Custom Item | Collar Stud Bolt, Anchor Foundation Bolt, U Bolt, Clamps, CNC Fasteners, CNC Parts |
| Reference | ASTM, ASME, ISO, EN, API 20E, API 20F, NORSOK |
Critical Fasteners – API 20E & 20F Certified
Tri-Star Industries delivers high-strength bolting systems designed for subsea and offshore environments.
- Certified under API 20E - BSL 1, BSL 2, BSL 3; API 20F - BSL 2.
- Tailored to Your Specifications – Manufactured for precision performance in power plants, refineries, marine structures, energy sector, subsea (Oil & Gas, Offshore, Refining & Petrochemicals, Subsea equipment, and infrastructure.
- Proven Reliability – Trusted across critical infrastructure projects worldwide.
Anchor Bolts, Pipe Clamps, U-Bolts & Structural Bolts
– Engineered for Structural Stability
- Thread Configurations: Imperial / Metric.
- Material Selection: Carbon Steel, Stainless Steel, and High-Performance Alloys.
- Protective Coatings: Zinc, Zinc-Nickel, Cadmium, Hot-Dip & Mechanical Galvanizing.
- Optional Enhancements: Neoprene, PTFE, EPDM, Polyshrink, Thermoplastic Rod for vibration damping and extended longevity.
Accreditations
Tri-Star Industries holds multiple ISO and CE certifications across all manufacturing facilities, ensuring the highest standards of quality, safety, and compliance.
