Flange Nuts – Built-In Strength with Wide-Grip Flange Base
Product Description
Flange Nuts are hexagonal nuts with a built-in washer-like flange at one end. This flange spreads the clamping load, providing a larger bearing surface that reduces pressure and eliminates the need for a separate washer. Serrated variants also help in preventing loosening due to vibration.
At SM Fasteners, we manufacture and supply premium flange nuts in stainless steel, high-tensile, and plated mild steel, ideal for both automotive and structural fastening. Our products conform to international standards and are engineered to offer strong grip, high torque tolerance, and long service life.
Applications
Flange nuts are used where large clamping force and vibration resistance are essential:
Automotive Chassis and Engine Mounts
Industrial Machinery & Equipment
Structural Assemblies
Pipe Fittings and Hydraulic Systems
Sheet Metal Fastening
Electrical Panel Brackets
Technical Specifications
| Parameter | Details |
|---|---|
| Type | Plain Flange Nut / Serrated Flange Nut |
| Standard | DIN 6923, ISO 4161, ASTM A563 |
| Material | Stainless Steel, Mild Steel, High Tensile, Alloy Steel |
| Grades | 8, 10, A2-70, A4-80 |
| Size Range | M4 to M24 | 3/16″ to 1” |
| Finish | Zinc Plated, Black Oxide, Self-Colored, Hot Dip Galvanized |
| Thread Types | Metric Coarse / Fine, UNC / UNF |
Why Choose Our Flange Nuts?
✅ High-precision CNC Machining for Flange Flatness
✅ Serrated design offers excellent vibration resistance
✅ Available in SS 304 / SS 316 for corrosion-prone areas
✅ DIN/ISO/ASTM-compliant for global applications
✅ Fast bulk supply and custom finishes as per drawings
Packaging and Delivery
Every order is carefully packed to maintain thread quality and surface finish:
Durable polybags or blister packaging
Printed/labeled cartons with size & grade info
Palletized wooden crates for export shipments
Protective oil coating or anti-rust wrapping where required
Industries We Serve
Our flange nuts are widely used in:
Automobile and Heavy Vehicles
Power Plant Equipment
Steel Structures and Industrial Sheds
Railways and Locomotive Assemblies
Oil & Gas Pipelines and Flanges
Electrical Infrastructure
Documents Supplied
Each shipment includes:
Manufacturer’s Test Certificate (MTC 3.1)
Dimensional Inspection Report
Surface Coating Compliance Sheet
Packaging & Dispatch Slip
RoHS / REACH / ISO Traceability (on request)
Request a Quotation
Need reliable, heavy-duty Flange Nuts for your project or business?
Reach out for a competitive quote:
📧 Email: susheel@smfastners.com
📞 Phone: +91 8968469570
💬 WhatsApp Chat: Click to Chat
SM Fasteners – Built Tough, Delivered Fast, Trusted Worldwide.