EXCELLENT WATERTIGHT SEAL Integrated limiter nut for an excellent seal when coupled with the gaskets.
DUAL INSTALLATION AND SELF-LOCKING NUT Can be installed with a 5mm hexagon socket (head) or with an integrated limiter nut (Ch 13); upper self-locking nut.
DUAL GASKET Integrated Ø19mm gasket, can be coupled with EPDM umbrella gasket for fastening directly to sheet metal, ideal when corrugated. Can also be coupled with sheet-metal caps on corrugated sheet metal. Preassembled system including 2 hexagonal nuts (1 selflocking) and two flat washers.
CERTIFIED SYSTEM The fastening system was designed specifically to guarantee perfect watertight seals thanks to the integrated limiter nut. The geometry has been specifically approved with certified resistance figures. The upper self-locking nut guarantees additional security.