What drill diameter is required for this bolt anchor?

For the Fischer FBN II 12/50, you need a drill hole diameter of 12 mm.

Which base materials are suitable for this anchor?

It is approved for non-cracked concrete C20/25 to C50/60 and suitable for concrete C12/15 and dense natural stone.

What is the maximum fixture thickness for this anchor?

The maximum usable length is 50 mm at standard anchorage depth and 65 mm at reduced anchorage depth.

Is this bolt anchor suitable for outdoor use?

This zinc-plated steel version is designed strictly for dry indoor applications.

What thread size does this bolt anchor have?

This anchor features an M12 thread and has an overall length of 146 mm.

FISCHER 45264 rapid-action anchor FBN II 12/50 electrolytically galvanised steel

Name: FISCHER 45264 rapid-action anchor FBN II 12/50 electrolytically galvanised steel
Brand: FISCHER
SKU: 87051120
Price: 1.4 EUR
Availability: PreOrder

Supplier number: FISCHER 45264 | EAN 4006209452646

1.40 tax incl.

€1.16 excl. VAT (incl. all environmental contributions)

On order: delivered from 06/10/2026

The minimum purchase order quantity for the product is 20.

Ordered before 20:00 - delivered tomorrow 06/10/2026
Shipping costs €11.99 VAT included | Free shipping for orders over a total amount of 125 euros
Delivery by DHL
Delivered from Belgium

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Strong anchoring with the Fischer through bolt

Practical benefits

Maximum load bearing performance: Using the standard anchorage depth gives you maximum load capacities, requiring fewer fixing points and smaller base plates.
Reduced drilling time on-site: The optional reduced anchorage depth lowers hole depth, allowing you to complete high-volume installations much faster.
Flexible adjustment and alignment: With the long M12 thread, you easily compensate for component tolerances and handle stand-off installations without hassle.

In a nutshell

The right choise for

With the Fischer fbn II 12/50 bolt anchor, you achieve dependable and secure fixings in non-cracked concrete and dense natural stone. Using the standard anchorage depth delivers maximum load capacity, allowing you to work with fewer fixing points and smaller base plates. When you need to complete high-volume installations quickly, the reduced anchorage depth minimizes drill hole depth to save valuable time on-site. Thanks to the long M12 thread and overall length of 146 mm, you easily compensate for building tolerances and carry out stand-off installations without hassle. This zinc-plated steel anchor is immediately load-bearing after tightening, making it ideal for railings, cable trays, beams, and steel brackets in dry indoor areas.

Product information FAQ

€1.40

tax incl.

Key features according to our expert

Drilling diameter: 12 mm
Effective length: 50/65 mm
Overall length: 146 mm
Material (bolt): Steel
Surface treatment (bolt): Zinc plated
Thread designation: M12

Product description

The cost-efficient fixing for flexible use in non-cracked concrete

The fischer bolt anchor FBN II is a steel anchor for cost-effective fixations in non-cracked concrete. Thanks to its long thread and the two anchorage depths, the fischer bolt anchor FBN II is particularly flexible. In addition to pre-positioned and push-through installation, the bolt anchor is suitable for stand-off installation. In the stainless steel design, the bolt anchor is suitable for façade sub-structures, cantilevers and ladders outside.

The standard anchorage depth achieves the maximum load-bearing capacities. Thus fewer fixing points and smaller anchor plates are required
The reduced anchorage depth reduces the drill hole depth. This minimises the amount of time needed for installation whilst increasing flexibility
The long thread balances component tolerances and allows for stand-off installations, thus increasing flexibility
Few hammer blows and the minimal torque slippage allow for a noticeably simpler installation
The drive-in pin protects the thread from damage, and thus ensures a faster installation and dismantling of the attachment

Suitable for

The FBN II is suitable for pre-positioned and push-through installation; also suitable for stand-off installation under certain conditions
Prior to installation, place the hexagon nut in the optimal position (the drive-in pin projects by approx. 3 mm out of the hexagon nut)
When applying the torque, the cone bolt is pulled into the expansion clip and expands it against the drill hole wall
The head embossing offers a simple control of the anchoring
In the case of series installation, we recommend using the FABS bolt anchor setting tool

Building materials

Approved for:

Concrete C20/25 to C50/60, non-cracked

Also suitable for:

Concrete C12/15
Natural stone with dense structure

Application

Steel constructions
Guard rails
Consoles
Ladders
Cable trays
Machines
Staircases
Gates
Façades

All Features

Drilling diameter: 12 mm
Effective length: 50/65 mm
Overall length: 146 mm
Material (bolt): Steel
Surface treatment (bolt): Zinc plated
Thread designation: M12
Pierce fitting: Yes
Anchoring depth lift, stand/lift,red: 65 / 50 mm
Max. useful length lift,stand/heave,red: 50 / 65 mm
Max. attachment thickness: 50 mm
Remote mounting: No
Thread size (metric): 12 mm
Front mounting: Yes
Min. drill hole depth for through-hole mounting: 135 mm
Pad (outer diameter x thickness): 18 x 2 mm
Anchor length: 144 mm
Anchoring depth: 65 mm
Tightening torque: 50 N-m
Drill diameter: 12 mm
Key width: 19 mm
Wire: M12 x 99 mm
Marking in headline: S

Brand FISCHER
87051120
EAN 4006209452646
Supplier number FISCHER 45264

Frequently asked questions about this product

Answered by specialists

What drill diameter is required for this bolt anchor?: For the Fischer FBN II 12/50, you need a drill hole diameter of 12 mm.
Which base materials are suitable for this anchor?: It is approved for non-cracked concrete C20/25 to C50/60 and suitable for concrete C12/15 and dense natural stone.
What is the maximum fixture thickness for this anchor?: The maximum usable length is 50 mm at standard anchorage depth and 65 mm at reduced anchorage depth.
Is this bolt anchor suitable for outdoor use?: This zinc-plated steel version is designed strictly for dry indoor applications.
What thread size does this bolt anchor have?: This anchor features an M12 thread and has an overall length of 146 mm.