BenchK PS8 and PS12 Expansion Plugs with Screws
Installing BenchK wall bars into suitable masonry? Choose the correct pack of Fischer 10 × 80 DUOPOWER expansion plugs and screws for your wall-bar series, then have the wall construction and fastening requirements checked before installation.
Choose the Correct Pack
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PS8 — SKU BKPS8: Eight plug-and-screw sets for the specified masonry installation of Series 1 and Series 2 wall bars. The pack is also listed for existing Series 5 systems.
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PS12 — SKU BKPS12: Twelve plug-and-screw sets for the specified masonry installation of Series 7 wall bars.
The selected pack is included; wall bars and stud-wall holders are sold separately. Check the current instructions for your exact system rather than choosing solely by the number of pieces shown in a photo.
Important: These Do Not Make Drywall a Suitable Wall
Do not install complete BenchK equipment into drywall, plasterboard or gypsum board alone. An anchor’s general list of possible substrates is not approval to mount a wall-bar system in those materials. BenchK’s equipment installation guidance specifies appropriate masonry or a properly supported stud-wall installation.
For wood-stud walls, use the appropriate Series 1 wall holder or Series 2 and 7 wall holders with fasteners suitable for the actual structure. These expansion-plug packs are not a substitute for the stud-wall holders.
For the specified Fischer-plug masonry installation, BenchK calls for a suitable wall at least 12 cm thick. Have a qualified installer assess nonstandard or uncertain wall construction and follow the current equipment and fastener instructions.
Fastener Specifications
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Drill diameter: 10 mm.
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Minimum drill-hole depth: 110 mm.
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Anchor length: 80 mm.
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Minimum bolt penetration: 88 mm.
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Published screw diameter range: 6–8 mm; follow the supplied hardware instructions.
Installation Illustrations


Fischer DUOPOWER Overview
Tell us your wall-bar model and wall type for help identifying the mounting items to check. Browse the BenchK collection for systems and compatible accessories.