HDA undercut anchor system
Base materials
■ Concrete (cracked)
■ Concrete (uncracked)

Applications
■ Safety-relevant, medium-duty fastenings in cracked or uncracked concrete, especially where shallow embedment and/or small edge distance or close spacing is required
■ Examples: stair hand rails, sprinkler pipes, air ducts, seating, facade substructures, car park barriers, etc.

Advantages
■ Shallow embedment depth for thin concrete slabs or where permissible drilling depth is limited
■ Combines high working loads with small edge distances and close spacing thanks to very low expansion forces
■ Self-undercutting facilitates fast and reliable installation - no separate undercutting tool or handling needed
■ The resulting keying effect keeps the anchor secure even in cracked concrete under shock loads
■ Requires a plain cylindrical drilled hole, no separate undercutting operation
■ Shock load tested (for use in civil defence shelters)
Approvals
ETA: ETA 02/0027 for HSC self-cutting undercut anchor (ETAG 001-03, Option 1)
Approvals and test reports may apply to selected products only. Please refer to the documents for details.

Safety anchor (carbon steel) HSC-A
Technical data
Head configuration: Externally threaded
Environmental conditions: Indoor, dry conditions
Type of fastening: Pre-fastening
Material composition: Bolt: steel, 8.8 grade, zinc-plated (min. 5 μm)
Installation direction: All
PROFIS: Yes
Ordering designation Anchor size Base plate clearance hole Required tightening torque Wrench size Anchor length Item number
HSC-A M8x40/15 M8 9 mm 10 Nm 13 mm 72 mm 31139
HSC-A M8x50/15 M8 9 mm 10 Nm 13 mm 82 mm 31141
HSC-A M10x40/20 M10 12 mm 20 Nm 17 mm 80 mm 31140
HSC-A M12x60/20 M12 14 mm 30 Nm 19 mm 104 mm 15507

Ordering designation Length id mark Max. fixture thickness at std embedment depth Sales pack quantity Item number
HSC-A M8x40/15 Two notches at end of anchor sleeve 15 mm 25 pc 31139
HSC-A M8x50/15 No notch at end of anchor sleeve 15 mm 25 pc 31141
HSC-A M10x40/20 Two notches at end of anchor sleeve 20 mm 25 pc 31140
HSC-A M12x60/20 Three notches at end of anchor sleeve 20 mm 20 pc 15507

Safety anchor (stainless steel) HSC-AR
Technical data
Base materials: Concrete (cracked, uncracked)
Head configuration: Externally threaded
Environmental conditions: Outdoor
Type of fastening: Pre-fastening
Material composition: Steel, A4 (SS316)
Installation direction: All
PROFIS: Yes
Ordering designation Anchor size Base plate clearance hole Required tightening torque Wrench size Anchor length Item number
HSC-AR M8x40/15 M8 9 mm 10 Nm 13 mm 72 mm 31148
HSC-AR M8x50/15 M8 9 mm 10 Nm 13 mm 82 mm 31150
HSC-AR M10x40/20 M10 12 mm 20 Nm 17 mm 80 mm 31149
HSC-AR M12x60/20 M12 14 mm 30 Nm 19 mm 104 mm 15506

Ordering designation Length id mark Max. fixture thickness at STD embedment depth Sales pack quantity Item number
HSC-AR M8x40/15 Two notches at end of anchor sleeve 15 mm 25 pc 31148
HSC-AR M8x50/15 No notch at end of anchor sleeve 15 mm 25 pc 31150
HSC-AR M10x40/20 Two notches at end of anchor sleeve 20 mm 25 pc 31149
HSC-AR M12x60/20 Three notches at end of anchor sleeve 20 mm 20 pc 15506

Internally-threaded safety anchor (carbon steel) HSC-I
Technical data
Base materials: Concrete (cracked, uncracked)
Head configuration: Inner thread
Environmental conditions: Indoor, dry conditions
Type of fastening: Pre-fastening
Material composition: Bolt: steel, 8.8 grade, zinc-plated (min. 5 μm)
Installation direction: All
PROFIS: Yes
Ordering designation Anchor size Internal thread size Thread engagement depth - max. Thread engagement depth - min. Item number
HSC-I M8x40 - 8 mm 22 mm 8 mm 31143
HSC-I M10x50 M10 10 mm 28 mm 10 mm 31144
HSC-I M10x60 M10 10 mm 28 mm 10 mm 31145
HSC-I M12x60 M12 12 mm 30 mm 12 mm 31146

Ordering designation Base plate clearance hole Required tightening torque Wrench size Sales pack quantity Item number
HSC-I M8x40 9 mm 10 Nm 13 mm 25 pc 31143
HSC-I M10x50 12 mm 20 Nm 17 mm 25 pc 31144
HSC-I M10x60 12 mm 20 Nm 17 mm 25 pc 31145
HSC-I M12x60 14 mm 30 Nm 19 mm 25 pc 31146

Internally-threaded safety anchor (stainless steel) HSC-IR
Technical data
Base materials: Concrete (cracked, uncracked)
Head configuration: Inner thread
Environmental conditions: Outdoor
Type of fastening: Pre-fastening
Material composition: Steel, A4 (SS316)
Installation direction: All
PROFIS: Yes
Ordering designation Anchor size Internal thread size Thread engagement depth - max. Thread engagement depth - min. Item number
HSC-IR M6x40 M6 6 mm 16 mm 6 mm 31151
HSC-IR M8x40 M8 8 mm 22 mm 8 mm 31152
HSC-IR M10x50 M10 10 mm 28 mm 10 mm 31153
HSC-IR M12x60 M12 12 mm 30 mm 12 mm 31155

Ordering designation Base plate clearance hole Required tightening torque Wrench size Sales pack quantity Item number
HSC-IR M6x40 7 mm 10 Nm 10 mm 25 pc 31151
HSC-IR M8x40 9 mm 10 Nm 13 mm 25 pc 31152
HSC-IR M10x50 12 mm 20 Nm 17 mm 25 pc 31153
HSC-IR M12x60 14 mm 30 Nm 19 mm 25 pc 31155