Enlarged washer PW12 /100pkg/ 651144

Application in installation systems

The PW12 wide washer is a professional fastening element designed for connecting installation system components. The product has been designed with high functionality in systems in mind, offering an E-90 fire resistance class, making it suitable for applications requiring the maintenance of structural integrity for a minimum of 90 minutes under fire conditions.

Materials and manufacturing technologies

The standard version of the PW12 washer is made of electro-galvanized steel, providing effective corrosion protection under normal operating conditions. The electro-galvanizing process creates a uniform coating with high adhesion and resistance to atmospheric factors.

For specific environmental requirements, alternative manufacturing materials are available:

• F - hot-dip galvanized steel according to the PN-EN ISO 1461:2023-02 standard for extreme corrosion resistance
• E - stainless steel for environments with high chemical aggressiveness or those requiring full corrosion resistance

Precise dimensions and compatibility

The PW12 washer is characterized by an inner diameter of 12 mm, perfectly matched to M12 metric bolts. The product size complies with the DIN 9021 standard, which guarantees international compatibility and the possibility of replacement with similar elements available on the market.

The enlarged outer diameter compared to standard washers provides:

• Increased bearing surface for better stress distribution
• Better protection of delicate materials against piercing or damage
• Greater connection stability in applications exposed to vibrations

The product design supports long-term connection reliability by maintaining dimensional stability and resistance to typical environmental factors.