M6 x 16mm Hex Socket Countersunk Barrel Nut A1 Stainless Steel

Hex Socket Countersunk Barrel Nut - M6 Thread x 16mm Length, A1 Stainless Steel | Vital Parts - HCBN-M6-16-A1

Our Hex Socket Countersunk Barrel Nut features an M6 internal thread and a 16mm overall length, crafted from premium A1 Stainless Steel for maximum corrosion resistance. Designed with a flush-fitting countersunk head and a hex socket drive (Allen key), this nut provides a strong, discreet and secure fixing solution. Commonly used in conjunction with matching countersunk bolts, these barrel nuts are ideal for precision joinery and flush clamping applications across furniture, cabinetry and exterior construction projects.

What is a Hex Socket Countersunk Barrel Nut?

This specialised barrel nut is internally threaded and shaped for insertion into pre-drilled holes, providing a clean and low-profile fastening point. The countersunk head allows bolts to sit flush with or below the surface, ensuring a smooth and snag-free finish. The hex socket drive enables easy installation using an Allen key, making them a preferred option for professional tradesmen and industrial assemblers requiring tamper-resistant, load-bearing joints.

Key Applications and Industries

• Furniture Manufacturing: Used for assembling bed frames, chairs and flat-pack units where aesthetics and secure joints are essential.
• Architectural Joinery: Perfect for timber connections and staircase fittings where hidden fastenings are required.
• Marine & Exterior Projects: Ideal for outdoor furniture, signage and fixtures due to the superior corrosion resistance of A1 Stainless Steel.
• Automotive & Engineering: Used in specialist applications where compact, strong, and flush-mounted fixings are needed.
• Shopfitting & Displays: For fixing panels, shelves and frames in retail and commercial display systems.

Why Choose Our Hex Socket Countersunk Barrel Nut?

Corrosion-Resistant Material: Made from A1 Stainless Steel, suitable for use in harsh, outdoor and marine environments.

Discreet Fixing: Countersunk head allows for a smooth, flush surface finish without visible fasteners.

Reliable and Easy to Install: Hex socket drive (Allen key) enables fast and secure tightening.

Industrial-Grade Precision: Manufactured to tight tolerances for a consistent fit and high-strength performance.

Key Features and Benefits:

• Material: A1 Stainless Steel - high resistance to corrosion and staining
• Thread Size: M6 - fits standard M6 bolts and screws
• Overall Length: 16mm - compact and discreet fitting
• Head Type: Countersunk for flush surface installation
• Drive Type: Hex socket drive (Allen key) for secure installation and removal

This barrel nut is ideal to pair with our range of security screws.

Technical Specifications:

• Thread Size: M6
• Thread Pitch: 0.5
• Thread Length: 9mmmm
• Overall Length: 16mm
• Barrel Diameter: 4.5mm
• Head Diameter: 12mmmm
• Head Height: 2.3mmmm
• Drive Type: Hex socket (H2, Allen key compatible)
• Material: A1 Stainless Steel
• Colour/Finish: Self-colour

These M6 x 16mm hex socket countersunk barrel nuts offer a high-performance solution for achieving flush, concealed and corrosion-proof joints in demanding environments. Whether you're working in marine construction, outdoor furniture or professional cabinetry, this component offers long-term durability and a sleek finish.

Call Vital Parts Today

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