Nut NSM12 /100pcs/ 650344

E90 Fire Protection System

The NSM12 nut is a key component of E90 according to DIN 4102-12 functional integrity systems, ensuring a minimum of 90 minutes of uninterrupted operation of safety devices in buildings. This specialized M12 steel nut has been developed for the most critical fire protection applications, where the reliability of alarm systems and emergency lighting can determine human safety.

The product fulfills the E90 function, meaning it maintains full operational integrity for at least 90 minutes under fire conditions. Such response time is crucial for fire detection devices, alarm systems, and emergency lighting in buildings equipped with water sprinklers.

Materials and surface finish

Standardly, the NSM12 nut is manufactured from electrogalvanized steel (material G), providing basic corrosion protection under normal environmental conditions. For demanding applications, alternative finishing options are available:

Zinc flake coating (FP) according to PN-EN ISO 10683:2018-11 offers increased resistance to atmospheric corrosion and chemical agents.

Hot-dip galvanized steel (F) according to PN-EN ISO 1461:2023-02 provides a thick zinc layer, ideal for outdoor use or in high-humidity environments.

Stainless steel (E) guarantees maximum corrosion resistance and long-term dimensional stability even in aggressive industrial environments.

Professional applications in safety systems

The NSM12 nut finds particular use in the installation and maintenance of fire detection devices, where every connection must maintain structural integrity for a minimum of 90 minutes of fire exposure. These systems require reliable fastening elements that will not weaken under the influence of temperature.

In emergency lighting installations, the nut provides durable fastening for emergency fixtures, guaranteeing their correct operation during building evacuation. This is particularly important in high-rise buildings and public utility facilities.

The product also performs well in automatic fire alarm systems, where the stability of connections has a direct impact on the speed of threat detection and the initiation of evacuation procedures.

Compliance with standards and certificates

The NSM12 nut meets the requirements of the German standard DIN 4102-12, which defines the criteria for maintaining the functional integrity of building elements during a fire. This standard is recognized as one of the most rigorous in Europe regarding fire resistance.

The E90 functional integrity system according to this standard includes not only the maintenance of mechanical load-bearing capacity but also the maintenance of the device's functional purpose for a specified period of fire exposure.

The product is part of the BAKS Kazimierz Sielski offering, which specializes in fastening systems for the electrotechnical and construction industries, ensuring high manufacturing quality and repeatable technical parameters.