Product image
Installation drawing
Recess drawing
Product image
Installation drawing
Recess drawing


The MULTI-MONTI®-plus A4 (MMS-plus A4) screw anchor is an enhancement of the MULTI-MONTI® A4 concrete screw. It is driven directly into a predrilled hole without a dowel and has load-bearing strength right from the word go. The reinforced toothing on the screw tip cuts an internal thread in the material during insertion. This creates a positive locking connection, which is subsequently used for the anchoring. This not only facilitates the installation procedure, but also guarantees the craftsman a high level of application safety. The MULTI-MONTI®-plus A4 concrete screw can be driven in close to the edge and without a torque wrench and is completely removable.

Product strengths

  • The screw anchor with maximum ease of installation
  • Optimised concrete thread for powerful anchoring
  • Two embedment depths for more flexibility
  • Increased product assortment and for various applications
  • Available in stainless steel A4 1.4401, stainless steel HCR 1.4529 on request
  • Phosphated functional tip ensures a reliable undercut of the concrete
  • Approved and monitored product for cracked and non-cracked concrete

Technical details

GTIN/EAN 4019787528016
Article number 52801
Head form hexagon head with combined washer
Recess hexagon head
Diameter, d 12,0 mm
Length, l 105 mm
Thread length, lg 81 mm
Headdiameter, dk 22,5 mm
Size of recess SW-15
Drill diameter, d0 10 mm
Clamping strength, tfix standard 5 mm
Clamping strength, tfix reduced 15 mm
Embedment, hnom standard 100 mm
Embedment, hnom reduced 90 mm
Drill hole depth, h standard 110 mm
Drill hole depth, h reduced 100 mm
Diameter of clearance hole in the fixture, df 14 mm
Min. edge distance, cmin 40 mm
Minimal thickness of concrete member, hmin 125 mm
Minimal thickness of concrete member, hmin2 150 mm
Recommended max. power output of the impact screw driver, Tmax1 250 Nm
Recommended max. power output of the impact screw driver, Tmax2 250 Nm
Surface self-colour, tip phosphated
Material stainless steel A4

Additional data

European technical assessment ETA-15/0784
Fire-resistance rating F120/R120
Approval for sprinkler systems Yes


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