Goecke Schwelm Brass Expansion Wall Anchor Bolt (40mm, Plastic

About

Product Details

Goecke Schwelm M8 brass wall anchor bolt for prism installation in concrete, rock, and masonry. Includes stainless steel spreading and locking bolts. Part of the economical 11R series—requires 10–12 mm bore diameter. Pairs with Spanner 11R2-ST and step drill 11H-SBO for fast, reliable mounting. Marked "MESS PUNKT" for survey reference.

Features

Spreading and/or locking bolts made from stainless steel are included in delivery of all bolts
Wall bolts from the 11R series offer a particularly economical way to install prisms in concrete, rocks or walls when used with the respective adapters
Spanner 11R2-ST and step drill 11H-SBO pair excellently for installation of these products
For installation, a bore of 10 - 12 mm Ø required.
M8-wall bolt, brass
Top reads, "MESS PUNKT"

Fixing Accessories

Product	Connection / Specification	Description & Application
5KBW Convergence Bolt – 12 mm Leica Adapter	12 mm Leica-style connection	Galvanized steel convergence bolt with an integrated 12 mm Leica-style mounting connection. Designed for installing compatible monitoring prisms in concrete tunnel linings.
5KB Convergence Bolt – 3/8" Male Thread	3/8" male thread	Standard galvanized steel convergence bolt for permanent installation. Compatible prisms can be mounted using the 46-VA connection adapter with a sacrificial breaking point.
Convergence Bolt Connection Accessories	3/8" bolt accessories	Connection components for mounting compatible monitoring prisms to 3/8" convergence bolts. Includes 46-VA connection adapters and related mounting accessories.
Convergence Bolt Protection Ring	Welded steel protection ring	Protects installed convergence measurement points from mechanical impacts and falling debris. Particularly useful in tunnel construction environments involving blasting. Optional protective plugs provide additional protection during shotcrete application.
Welding / Magnetic Leica Adapter	12 mm Leica-style connection	Mounting adapters for attaching compatible monitoring prisms to steel structures. Available configurations support welded or magnetic attachment methods, including models 46-1300W, 46-2016W, and 11R10-W.
Beam Clamp – M8 Female Thread	M8 female thread Clamping range: 0–23 mm	Galvanized steel clamp for mounting monitoring prisms to steel beams, lattice structures, sheet piles, and other suitable structural members using compatible adapters.
11R Wall Bolt – M8 Female Thread	M8 female thread	Economical mounting solution for installing monitoring prisms in concrete, rock, or masonry. Used with compatible threaded prism adapters. Available in multiple configurations within the 11R series.
M8-to-Leica Wall Bolt Adapter	M8 male thread to 12 mm Leica-style connection	Connects compatible monitoring prisms with Leica-style mounting sockets to 11R series wall bolts. Available in different materials and configurations, including 46-VA-M8, 11R5-W, and 11R5-W-VA.