HSL4-B Heavy-duty wedge anchor

Hilti Fastener: HSL4-B Heavy-duty wedge anchor

Product Name: HSL4-B Heavy-duty wedge anchor
Anchor size: M12-M20
Anchor length: 141mm-228mm
Material, corrosion: Carbon steel, zinc-plated
Head configuration: Safety cap (Torque limitation nut)
Approvals / test reports: ETA, Fire, ICC-ES report (concrete), LABC, Nuclear (NQA-1), Seismic: Base materials
Concrete (cracked), Concrete (uncracked)
PROFIS software: Yes

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1. Product Overview – HSL4-B Heavy-duty wedge anchor
HSL4-B Heavy-duty wedge anchor delivers code-level safety with a built-in torque cap that removes guesswork.

Safety cap clicks at exact torque—no wrench calibration

Force-controlled expansion grips cracked concrete hard

Zinc-plated carbon steel resists C3 corrosion

ETA seismic C2, fire, ICC-ES and NQA-1 approvals

2. HSL4-B Heavy-duty wedge anchor Technical Parameters

Parameter	Specification	Notes
Anchor size	M12 / M16 / M20	Metric coarse thread
Length range	141–228 mm	Overall length
Embedment hef	70–140 mm	Size-dependent
Material	Carbon steel, zinc-plated ≥ 5 µm	C3 protection
Service temp	–40 °C to +80 °C	Short-term max +80 °C

3. HSL4-B Heavy-duty wedge anchor Performance Data

Size	Embedment	Tension NRk*	Shear VRk*
M12	90 mm	67.4 kN	89.6 kN
M16	120 mm	100 kN	204.5 kN
M20	140 mm	100 kN	204.5 kN

*Characteristic values, cracked concrete C20/25, no edge effect

Safety cap limits preload to 95 % proof load automatically

25 % smaller edge distance than resin anchors

Fatigue tested 2 million cycles at 0.7 NRk

4. HSL4-B Heavy-duty wedge anchor Installation Guide

Step	Action	Tools/Requirements
1	Mark hole	Marker,
2	Hammer drill	SDS-MAX bit
3	Clean hole	Brush & blow twice
4	Insert anchor	Hand push
5	Tighten torque	Click cap stops
6	Load immediately	Immediate

5. HSL4-B Heavy-duty wedge anchor Application Scenarios

Application	Recommended Spec	Conditions
Nuclear pump base	M20 × 228 mm	Cracked C40/50, NQA-1
Steel column shoe	M16 × 175 mm	Fire R120, seismic C2
Medical CT frame	M12 × 141 mm	Fatigue, vibration
Crane rail clip	M16 × 200 mm	Outdoor C3, edge 100 mm

6. Certifications & Compliance

ETA-21/0740 – cracked & uncracked concrete C20/25–C50/6

ETA seismic C2 per EN 1992-4, PGA 0.5 g

Fire – R120 (ISO 834), retains ≥ 60 % NRk

ICC-ES ESR-3952 – US concrete code approval

NQA-1 – nuclear quality assurance for safety-related structures

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