HEXAGON FLANGE NUT

Hexagon Flange Nuts – Serrated & Unserrated

Standards: DIN 6923 | ISO 4161
Size Range: M3 – M20

Nufast supplies high-quality hexagon flange nuts designed to distribute load over a wider surface area, reducing the need for a separate washer. These nuts are available in both serrated and unserrated forms to meet a variety of application needs:

Unserrated Hex Flange Nuts: Ideal where surface protection is critical, offering secure fastening without damaging contact surfaces.

Serrated Hex Flange Nuts: Feature integrated locking serrations on the flange face to resist loosening from vibration, providing improved locking performance on steel assemblies.

Available Finishes:

• Zinc
• Black
• Black Nickel
• Bright Nickel (22)
• Dacromet
• Self Colour

Suitable for automotive, construction, machinery, and general engineering applications. Manufactured to DIN 6923 / ISO 4161 standards for dimensional consistency and mechanical performance.

Logistics, Supply & Support

• Extensive stock availability in core sizes and finishes
• Same-day dispatch for in-stock items
• Competitive pricing with bulk order capability
• Global distribution with export-ready logistics
• UK-based customer service and technical support team on hand to assist

We also offer support for:

• Volume call-off agreements
• Just-in-time (JIT) delivery
• Long-term scheduling aligned to your production forecasts

Custom Fastener Solutions

Beyond standard components, Nufast specialises in engineered fastening solutions tailored to complex design criteria. Our expertise includes:

• Non-standard thread profiles and tolerances
• Bespoke geometries and projections (studs, flanges, drive features)
• Specialist coatings, plating, and corrosion protection
• Batch-level traceability, with full inspection and quality documentation

From prototype development through to full-scale production, our in-house engineering team works closely with customers to ensure functional integrity, manufacturability, and supply continuity.

Contact Technical Support

For technical enquiries, stock checks, or custom solution discussions, please contact the Nufast technical team:

T: +44 (0)1543 270 700
E: info@nufast.com

Alternatively, submit your enquiry using the form below, and a member of our team will respond shortly.