Fischer FBS II Concrete Screws — Fire Rated R120 Self-Tapping Screws for Concrete, Block & Masonry

Fischer FBS II concrete screws combine the speed of a self-tapping direct fix with two important advantages: they are removable and re-settable after installation, and carry a fire resistance classification of R120 — 120 minutes of fire resistance. This makes them a serious option for service installation and support work where fire-rated fixings are specified.

Available in two variants — panhead for standard fixing applications, and rod hanger for suspending threaded rod from concrete soffits and ceilings. Both use a 7.5mm thread with a 6mm pilot hole and install without a separate plug or anchor.

Key Features

• Fire resistance classification R120 — 120 minutes
• Removable and re-settable after installation
• Self-tapping — no plug, sleeve or anchor required
• Suitable for concrete, concrete block and masonry
• 7.5mm thread diameter, 6mm pilot hole throughout
• Panhead variant for direct mechanical fixing
• Rod hanger variant accepts M8 and M10 threaded rod (10mm stud diameter)
• Backed by Fischer technical documentation and approval standards

Typical Applications

• Fire-rated service installations requiring R120 classified fixings
• Suspending pipework, cable trays and ductwork from concrete ceilings
• Mechanical and electrical services support systems
• General fixing into concrete and masonry where removability is required

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Additional Information

Panhead

Rod Hanger