Flange nuts are hexagonal nuts with an integrated wide flange at one end, which acts like a built-in washer to distribute pressure evenly across the fastening surface. This design helps prevent damage to the connected parts and reduces the risk of loosening under vibration—making flange nuts ideal for automotive, machinery, construction, and metal structure applications.
Available in a variety of thread sizes, materials, and surface treatments, our flange nuts are precision-manufactured to meet international standards for strength, performance, and durability.
🔩 Product Overview
Type: Hex Flange Nut / Serrated Flange Nut / Non-Serrated Flange Nut
Standard:
- DIN 6923 / ISO 4161 / JIS B1190 / ANSI B18.2.2
Thread Options: - Metric: M5, M6, M8, M10, M12, M14, M16, M20
- Inch: 1/4″, 5/16″, 3/8″, 1/2″, 5/8″, 3/4″
Materials:
- Carbon Steel (Grade 6 / 8 / 10)
- Stainless Steel (SS304 / SS316)
- Alloy Steel
- Brass (on request)
Finish Options:
- Zinc Plated (Clear / Yellow)
- Black Oxide
- Hot-Dip Galvanized
- Plain / Passivated
- Dacromet / Geomet
⚙️ Common Applications
- Automotive Fastening (Chassis, Engines)
- Agricultural and Construction Machinery
- Metal Frames and Support Systems
- Industrial Equipment Assembly
- Vibration-Prone Joints in Mechanical Structures
✅ Key Features
✔️ Built-in flange distributes load evenly and eliminates need for washer
✔️ Serrated option provides anti-loosening performance under vibration
✔️ Easy to install with standard tools
✔️ Corrosion-resistant finishes for indoor and outdoor use
✔️ Compatible with bolts, studs, threaded rods, and more
📦 Packaging & Logistics
- MOQ: 5,000 pcs per size
- Packaging: Small boxes + Carton + Pallet / Bulk bag / OEM label
- Lead Time: 5–15 working days
- OEM / ODM supported: custom threads, coating, packaging
📩 Looking for high-quality flange nuts directly from a factory supplier?
We offer standard and customized flange nuts with fast delivery and global export support. Contact us now for samples, catalog, or quotation.