Eliminate high supplier markup and inconsistent quality. Get ISO 9001 certified star flange nuts and 1-2-10 acme flange nuts with full traceability, 30% lower lead times, and direct factory pricing for North American & European buyers.
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Eliminate high supplier markup and inconsistent quality. Get ISO 9001 certified star flange nuts and 1-2-10 acme flange nuts with full traceability, 30% lower lead times, and direct factory pricing for North American & European buyers.
📞 Get Free Quote in 24h ✉️ Request Sample✅ 26 years in business | ✅ 30,000 m² smart factory | ✅ 15+ in-house engineers
Every month, procurement and operations teams lose time, budget, and reliability because of these six common pitfalls.
Spot prices for 1 2 10 acme flange nut variants fluctuate up to 18% quarterly. Without a fixed wholesale contract, your project budget is exposed to raw material swings.
A 2025 industry survey found 37% of fastener orders arrive late. For piping projects, a delayed star flange nut shipment can push back an entire pipeline installation by weeks.
Flange nuts that fail proof load tests cause rework and safety risks. 1 in 12 imported nuts from uncertified suppliers fail ASTM A194 / A563 specs.
LCL shipping for mixed fastener lots adds 22–35% in freight overhead. Consolidated wholesale container loads for star flange nuts cut per-unit logistics cost by nearly half.
Missing or forged ISO 9001, CE, or UL documentation can halt customs clearance. 64% of compliance delays in 2024–2025 were due to incomplete fastener paperwork.
Sourcing flange nuts, washers, and pipe hangers from three separate vendors multiplies admin work. One consolidated supplier reduces procurement overhead by up to 40%.
👉 You don't need more suppliers. You need one that delivers on all fronts.
We don't just make star flange nuts and 1 2 10 acme flange nuts — we engineer reliability into every thread.
120+ CNC machines, automated forging lines, and laser cutting. 500,000+ pieces monthly capacity across all product lines.
Every lot of star flange nuts is tested for proof load, hardness, and dimensional accuracy. ISO 9001, CE, RoHS, FCC — all docs included.
Consolidated FCL/LCL shipping to USA, Europe, and Asia. 15–25 days door-to-door with full customs paperwork.
| Parameter | Star Flange Nut | 1 2 10 Acme Flange Nut | Testing Standard |
|---|---|---|---|
| Thread Size | 1/2″ – 2″ UNC / UNF | 1 2 10 Acme (1″-2″-10 TPI) | ASME B1.5 / ASTM A563 |
| Material Grade | Carbon Steel (Grade 5/8), 304/316 SS | Carbon Steel (C45), Alloy Steel (4140) | ASTM A194 / ISO 898-1 |
| Proof Load | 150,000 – 180,000 psi | 120,000 – 150,000 psi | SAE J995 / ASTM F606 |
| Surface Finish | Zinc Plated, HDG, Dacromet | Black Oxide, Zinc-Nickel | ASTM B633 / ISO 4042 |
| Flange Diameter | 1.25″ – 3.50″ | 1.75″ – 4.00″ | ASME B18.2.2 |
| Temperature Range | -40°F to +450°F | -20°F to +600°F | ASTM F2328 |
📄 Full datasheet available on request
Star flange nuts are widely used in pipe hanger assemblies, valve flanges, and HVAC ductwork. Their integrated flange distributes clamping load evenly, reducing the risk of galling on galvanized pipe. Ideal for commercial and industrial piping up to 2″.
The 1 2 10 acme flange nut is engineered for precision linear motion in valve actuators, conveyor adjusters, and press screw mechanisms. The 10 TPI acme thread provides smooth, high-load traverse with minimal backlash. Common in water treatment and material handling.
150+ Fortune Global 500 suppliers and top contractors rely on our quality.
+ 120 more industry partners
CE / RoHS / FCC / UL compliant
“We switched to Handan Guanbiao for our star flange nut supply. Lead times dropped from 9 weeks to 3, and the dimensional consistency is better than any domestic supplier we used.”
“The 1 2 10 acme flange nut we ordered for our valve actuator line passed every test. Zero rejects in 12,000 units. Their ISO 9001 and full traceability docs made our audit seamless.”
“Consolidating our flange nuts, washers, and pipe hangers with one supplier cut our procurement admin by 35%. Pricing is transparent and shipping is always on time.”
A star flange nut has a wider, serrated flange that acts as an integrated washer, distributing clamping force over a larger surface area. This reduces the risk of galling and loosening under vibration — ideal for piping and automotive applications where joint integrity is critical.
It refers to a flange nut with an Acme thread profile: 1 inch nominal diameter, 2 inches thread length, and 10 threads per inch (TPI). The acme thread form provides superior load-bearing and wear resistance for linear motion and lead screw applications.
For standard carbon steel star flange nuts, MOQ is 2,000 pieces per size. For 1 2 10 acme flange nuts, MOQ is 1,000 pieces. We also offer mixed container loads for certified buyers — contact us for a custom quote.
Every shipment includes ISO 9001:2015 certification, material test reports (MTR), proof load test results, and dimensional inspection reports. Additional documents (CE, RoHS, FCC, UL, IPPC) are available per your contract requirements.
Typical door-to-door lead time is 15–25 days for FCL shipments, and 20–30 days for LCL. We handle all customs documentation and can provide a tracking number within 48 hours of container loading.
Yes. We offer custom laser marking, private labeling, and packaging (bulk bags, retail boxes, or poly bags) with your logo and part numbers. Our 15+ in-house engineers can also modify flange dimensions or thread tolerances for your specific application.
We accept T/T (30% deposit, 70% before shipment), L/C at sight, and for established accounts — net 30 or net 60 after credit review. We also accept PayPal for sample orders under $500.
Absolutely. Free samples (up to 5 pieces per size) are available for qualified buyers. You pay only the shipping cost. We'll also include a copy of the material test report and dimensional report so you can verify performance before placing a bulk order.
Limited-time offer: First-time wholesale orders of 5,000+ pieces get free DDP shipping to major ports in the USA, Germany, or UK. Offer valid for the next 30 days — subject to credit approval.
✅ Risk-free guarantee: If your order doesn't meet the agreed specs, we'll replace it or issue a full refund — including return freight.
📍 Handan Guanbiao Metal Products Manufacturing Co., Ltd. | LiuHan Township, Yongnian District, Handan, Hebei, China
Real feedback from engineers, procurement pros, and operations leaders.
“We've been using the star flange nut from Handan Guanbiao for our pipe hanger assemblies. The quality is flawless across 8 shipments. Their team even helped us modify the flange diameter to fit our custom bracket. Highly recommended.”
— James T., Senior Mechanical Engineer, USA
“The 1 2 10 acme flange nut we ordered for our actuator line was a perfect fit. Thread engagement is smooth, and the zinc-nickel coating passed 600 hours salt spray. Their pricing is 18% lower than our previous European supplier.”
— Lukas W., Supply Chain Manager, Germany“We consolidated our flange nuts, washers, and pipe hangers into one container. Logistics costs dropped by 31%, and the documentation was complete for customs clearance in Rotterdam. A reliable partner for European buyers.”
— Marie L., Operations Director, Netherlands“I was skeptical about switching to a Chinese supplier, but the free sample program convinced me. The star flange nuts met every spec on our PO. Now we're on our 4th container and the consistency is remarkable.”
— Roberto C., Procurement Specialist, Brazil
About the Author — Michael S. Tan
Michael is a senior fastening systems engineer with 19 years of experience in industrial fastener design and global sourcing. He has worked with Tier 1 automotive suppliers, petrochemical plant contractors, and infrastructure projects across 12 countries. As Head of Technical Sales at Handan Guanbiao, Michael oversees product compliance, custom engineering, and quality assurance for wholesale clients in North America and Europe. He holds certifications in ISO 9001 lead auditing and ASME fastener standards.
✍️ This article is based on first-hand factory testing, customer feedback, and 2026 industry data.
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