Mungo 1341215 (MCS-a-S Series)

Professional Summary

• Manufacturer: Mungo (Switzerland)

• Model/Article: 1341215 (MCS-a-S Series)

• Type: High-Performance Concrete Screw Anchor with Hexagon Head and Integrated Washer

• Material: High-grade case-hardened carbon steel, zinc plated ($\ge$ 5 µm)

• Drive System: Hexagonal head (SW 15 / SW 17 depending on specification), optimized for high-torque impact wrench installation.

Dimensions & Technical Specifications (12/10 x 150/70)

• Screw Thread Diameter: 12 mm

• Drill Hole Diameter ($d_0$): 10 mm (Note: requires a 10 mm masonry drill bit; the 12 mm oversized cutting thread carves its own interlocking track into the concrete matrix).

• Total Screw Length ($L$): 150 mm (extended length profile for deep structural timber/steel bridging).

• Maximum Fixture Thickness ($t_{fix}$): 70 mm (allows exceptionally thick materials, such as heavy wooden beams or thick steel base plates up to 7 cm, to be clamped directly to the substrate).

• Minimum Drill Hole Depth ($h_1$): 95 mm

• Nominal Embedment Depth ($h_{nom}$): 80 mm

Key Benefits & Operating Principle

• Expansion-Free Anchoring: Unlike standard mechanical sleeve anchors, concrete screws eliminate radial expansion stresses. This enables tight anchor spacing and extremely reduced edge distances without risking spalling or substrate cracking.

• Flanged Hex Head Design: The integrated washer under the hexagonal head increases the surface clamping area. This provides superior pull-through resistance, which is vital when fastening structural timber or heavy metal plate assemblies with oversized clearance holes.

• 100% Removable: The mechanical direct-entry thread design allows the screw to be completely backed out and removed, leaving the substrate flat—perfect for temporary site shoring, scaffolding, or formwork anchoring.

• Top-Tier Approval (ETA Option 1): Holds European Technical Assessment certification for cracked and non-cracked concrete ($C20/25$ to $C50/60$), ensuring certified load capacities under structural and seismic conditions.

Application:

Engineered for heavy-duty timber framing, structural steel anchoring, and industrial site installations. Ideal for securing thick wooden ledger boards, roof wall plates (mauerslat), warehouse racking base plates, heavy industrial machinery foundations, structural brackets, and protective exterior steel guardrails into solid concrete.