USN peg for mounting sheet metal processing, 40mm, brown 9M40USN

Universal Expansion Plug for Installation on Various Substrates

The USN 40 mm brown plug is designed for direct mounting of sheet metal components, connecting profiles, cornice covers, small lighting fixtures, or sensors — without creating thermal bridges. This is a key advantage when installing on insulated walls, where preventing heat conduction is critical to the building’s thermal efficiency.

The flexible V-shaped elements integrated into the plug’s design ensure stable expansion force within the substrate material — regardless of its structure. This allows the plug to hold securely even in low-density materials such as AAC6 cellular concrete or hollow lime-sand bricks.

Made from glass-fiber-reinforced nylon and equipped with an EPDM seal, it is resistant to aging, UV radiation, and extreme weather conditions. This not only ensures long-term performance but also enables outdoor or high-moisture installations without risk of degradation.

The plug’s head features a discreet design that blends seamlessly into the surface — ideal where installation aesthetics matter. Available in multiple colors (including RAL 8014 — brown), it matches most building surfaces without requiring additional painting or masking.

Suitable for use in:

• Concrete
• Solid and hollow brick
• Natural stone
• Lightweight concrete blocks
• Cellular concrete (AAC6)
• Concrete and lime-sand hollow bricks

Installation is fast: simply drill a 6 mm hole and hammer the plug in. If removal is needed, simply break off the head with a chisel or drill it out (it features a guiding notch for this purpose).

Pull-out values at 35 mm anchoring depth:

• 0.93 kN in concrete
• 0.55 kN in hollow brick
• 0.60 kN in AAC6 cellular concrete

No additional fastening components required — it functions independently. This is the ideal solution for installers seeking quick, secure mounting on diverse substrates — and for end customers who demand clean, unobtrusive installations.