Screw SMM8x30 E90 /100pcs/ 650543

SMM8x30 screw is a fastening element designed to connect components in various systems – from building structures to electrical installations. Made of high-quality materials, it provides a reliable and durable connection.

Application and safety

This screw, with dimensions M8x30, meets the requirements of the E90 functional maintenance system according to DIN 4102-12. This means that in the event of a fire, the components connected by this screw will maintain their functionality for at least 90 minutes. This is crucial for ensuring safety in buildings equipped with fire alarm, fire detection and evacuation lighting systems with water sprinklers.

Materials and manufacturing

Different finishes are available for the SMM8x30 screw:

• G – Galvanic zinc plating: Standard coating providing basic corrosion protection.
• F – Hot-dip galvanized steel (PN-EN ISO 1461:2023-02): More durable zinc coating, providing better corrosion resistance, especially in harsh atmospheric conditions.
• FP – Zinc flake coating (PN-EN ISO 10683:2018-11): Coating with high corrosion resistance, ideal for applications requiring long-term protection.
• E – Stainless steel: Highest corrosion resistance, ideal for use in chemically aggressive environments or exposed to moisture.

The screw is made of steel grade 5.8 according to DIN 933, which guarantees its strength and reliability. Choosing the appropriate material allows you to adapt the screw to specific working conditions and project requirements.