Anchor FBN

Anchor FBN is a type of mechanical anchor with torque-controlled tightening.

The fastener is used to secure various metal and architectural structures installed on high-density building stone, concrete grades C20/25 – C50/60, C12/15.

Description and purpose

The main element of the product is a steel rod from 50 to 280 mm long and from 6 to 20 mm in diameter. One side of the bolt has a long threaded section, while the other end has a conical expansion sleeve. It wedges during tightening and functions as an anchor. The kit also includes a nut and a washer. Anchors are made of stainless or carbon steel. In the latter case, they undergo zinc plating or passivation to obtain a corrosion-resistant coating.

The FBN series anchors are used to install the following structures:

• metal profiles;
• handrails, grilles, stair flights;
• window frames;
• brackets;
• machine equipment on foundations;
• timber, roof battens;
• gates;
• curtain façades.

Installation rules

Anchor FBN is installed in the following order.

1. Drill a hole in the base equal in diameter to the cross-section of the expansion element. Thoroughly remove dust from the hole with a brush and a vacuum cleaner.
2. Screw on the nut so that the bolt protrudes 3 mm above its end face.
3. Carefully drive the anchor in using a hammer.
4. Tighten the nut with a torque wrench.

Selection rules

For outdoor work and installation in damp areas, stainless steel anchors (marking A4) are used. Galvanized bolts with an enlarged washer (marking GS) are used to fasten wooden structures. The installation depth of anchor FBN is indicated on its end face.