fischer Bolt anchor FAZ II Ø 8.0mm (Stainless steel)

Fischer Wedge Anchor FAZ II with 8mm nominal diameter

Stainless steel ✓ Suitable for outdoor applications ✓ ETA approval ✓

Our fischer FAZ II R bolt anchors made of stainless steel with a nominal diameter of 8.0mm are available in various anchor lengths. The thread length varies depending on the selected anchor size for a metric thread with an M8 thread diameter. The version with a normal washer and nut is suitable for a wide range of heavy-duty fixings, both indoors and outdoors, using push-in or push-through installation. For the bolt anchors with longer useful lengths, spaced installation is also possible. The variable anchoring depths of the 8mm anchor also ensure millimetre-precise adaptation to the loads present.

For a secure hold in cracked and non-cracked concrete, tightening the screw nut causes the conical bolt to be pulled effortlessly into the expansion clip, which then braces it powerfully in the inner wall of the drill hole. The ETA approval, as well as other international approvals, guarantee the highest safety when using the 8mm bolt anchor.

Heavy-duty anchors are needed less often than conventional fastening solutions - good thing we also sell the 8mm anchors individually!

Scope of delivery:

• 1 x fischer Wedge Anchor FAZ II Ø 8.0mm Type R in selected length
• 1 x A4 stainless steel washer with 15mm outer diameter
• 1 x A4 stainless steel nut with 13mm spanner size

NOTE: For the installation of the bolt anchors with a diameter of 8mm, a hammer drill for concrete with 8mm diameter is required.

Technical data of the fischer FAZ II Wedge anchor

• Dowel type: Wedge anchor
• Name: FAZ II 8/X R
• Material: Stainless steel
• Anchor size: see additional information
• Ø Thread: M8
• Ø Dowel: 8.0mm
• Dowel length: see additional information
• Working length: see additional information
• Anchoring depth: min. 35mm-max. 45mm
• Operating principle:Cone bolt with expansion clip
• Version: with screw nut
• Spanner width: 13mm
• Ø Drilling: 8.0mm
• Borehole depth: see additional information
• ETA admission: Yes
• ICC Admission: Yes
• Seismic approval: Category C1 (less stringent)
• Mounting type(s):Push-in mounting, push-through mounting, spacer mounting
• Building material:cracked concrete, non-cracked concrete, natural stone with dense structure, and much more.

NOTE: The technical data varies depending on the anchor length. Information on drill hole depth, total length or effective length can be found in the Additional information tab after selecting the desired bolt anchor.

Installation instructions for fischer Wedge anchor FAZ II 8/X R

For installation with bolt anchors in concrete, holes must be drilled at the desired fixing points. Make sure that the drill diameter corresponds to the diameter of the heavy-duty anchor. For the 8mm bolt anchors, a hammer drill of size 8x110/160mm is the perfect choice, because this corresponds to the required diameter and with a spiral useful length of 110mm, drill holes up to 110mm deep are possible in order to achieve the required drill hole depth even with longer bolt anchors. How deep the hole has to be drilled depends on the anchor length and can be found in the additional information once the size has been selected. It is also important that the holes are always drilled straight and precisely. Otherwise the anchor cannot be used properly, because if it is inserted at an angle to the installation object and the screw nut is tightened, the tightening torque cannot act on the entire surface.

When the nut is tightened, the tapered bolt causes the expansion clip to expand powerfully. This contributes to the very high working loads of the small 8mm bolt anchor. However, these expansion forces also act on the inner wall of the hole, so that an edge distance of the holes of at least 40mm must be maintained. If this distance is too small, the concrete can form cracks towards the edge or even spall. A minimum distance must also be maintained between individual fixings with bolt anchors. The so-called centre distance for FAZ II bolt anchors in Ø 8mm is at least 35mm for cracked concrete and at least 40mm for non-cracked concrete.

For a permanently secure and tight fit of the steel anchor, direct contact between the expansion clip and the inner wall of the drill hole is necessary. For this reason, the drill hole should always be thoroughly vacuumed out and, if necessary, cleaned with a drill hole brush so that the drill dust is completely removed from the drill hole. This ensures that the expansion is not impaired by remaining drill dust when the required tightening torque is reached. The tightening torque for the small steel anchors with 8mm nominal diameter is 20Nm, regardless of the type of installation, anchorage depth or attachment thickness. It is strongly recommended to tighten the nuts with a torque spanner in order to neither fall below nor exceed the tightening torque.

Single load of an 8mm bolt anchor in cracked concrete

• Permissible tensile load at 35mm anchorage depth: 2.6kN
• Permissible tensile load at 45mm anchorage depth: 3.8kN
• Permissible transverse load at 35mm anchorage depth: 9.5kN
• Permissible transverse load at 45mm anchorage depth: 9.6kN

Single load of an 8mm bolt anchor in non-cracked concrete

• Permissible tensile load at 35mm anchorage depth: 4.9kN
• Permissible tensile load at 45mm anchorage depth: 6.7kN
• Permissible transverse load at 35mm anchorage depth: 9.6kN
• Permissible transverse load at 45mm anchorage depth: 9.6kN

NOTE: With the C-FIX software, the manufacturer fischer provides an anchor design program for steel and composite anchors in concrete for free download.

Application examples for Ø 8mm Wedge anchor fischer FAZ II

Our stainless steel bolt anchors are suitable, for example, for mounting installation rails for cables and pipes both indoors and outdoors. Such installation rails, which are very often used in underground garages, utility shafts and industrial halls, sometimes have to withstand quite high loads, because cables and conduits can weigh quite a lot. Bolt anchors of the FAZ II type with 8mm diameter are characterised by very good tensile load and lateral load resistance, which are significantly higher compared to simple heavy-duty anchors of identical size.

Another example of the use of smaller bolt anchors is the fastening of fence posts with anchor plates on a concrete foundation for the erection of a double-bar mesh fence, a modern privacy screen made of WPC or rhombus or similar. Because they are made of stainless steel, corrosion is not an issue for the high-quality bolt anchors, so that even adverse weather conditions do not affect the mounting material and the fence system is securely anchored in the foundation for the long term as a boundary and privacy screen.

For particularly heavy loads or installation objects that are subject to high movement stress, bolt anchors with a diameter of 10 mm and more are usually the better choice. This includes, for example, the installation of playground equipment on a concrete foundation or fall protection on balconies and staircases.

NOTE: The fischer FAZ II bolt anchor made of stainless steel is equally suitable for push-in installation and push-through installation. The small 8mm heavy-duty anchors with effective lengths from 10mm up to 50mm can also be used for spaced installation, depending on the effective length and the thickness of the attachment.