Anchor Fastening Technical Guide , Edition 22
INSTALLATION PARAMETERS
Figure 1 — Hilti HDA specifications
Anchor nomenclature
Hilti design anchor P pre-set before baseplate
T through-set after / through baseplate
Blank carbon steel zinc plated F carbon steel sherardized R 316 stainless steel Metric Thread diameter ( mm )
HDA-PF M12 x 125 / 50
3.3.1
HDA-T HDA-P
Minimum embedment of undercut
Maximum fixture thickness
Table 1 — Hilti HDA specifications
Setting information Symbol Units
Nominal anchor diameter M10 M12 M16 M20
Cone bolt thread diameter d o mm 10 12 16 20
Nominal bit diameter 1 d bit mm 20 22 30 37
Effective minimum embedment h ef mm 100 125 190 250 ( in .) ( 3.9 ) ( 4.9 ) ( 7.5 ) ( 9.8 )
Hole depth h o mm 107 135 203 266 ( in .) ( 4.2 ) ( 5.3 ) ( 8.0 ) ( 10.5 )
Max . fixture thickness , HDA-P t fix See Section 3.3.1
Fixture hole diameter , HDA-P d h mm 12 14 18 22 ( in .) ( 1 / 2 ) ( 9 / 16 ) ( 3 / 4 ) ( 7 / 8 )
Max . fixture thickness , HDA-T t fix See Table 5
Fixture hole diameter , HDA-T d h mm 21 23 32 40
( in .) ( 7 / 8 ) ( 15 / 16 ) ( 1-1 / 4 ) ( 1-9 / 16 ) Length of anchor l See Section 3.3.1
Minimum concrete member thickness 2 h min in . 7-1 / 8 7-1 / 2 10-5 / 8 3 13-3 / 4 ( mm ) ( 180 ) ( 200 ) ( 270 ) ( 350 )
Installation torque T inst ft-lb 37 59 89 221
( Nm ) ( 50 ) ( 80 ) ( 120 ) ( 300 ) Wrench size mm 17 19 24 30
1 HDA must be installed with the specified Hilti hammer drill and Hilti metric stop bit . See section 3.3.1.5 . 2 Minimum concrete thickness for HDA-P . For HDA-T , additional thickness needed to account for thin fixture which will increase effective embedment . 3 When setting the anchor with TE 70 , h min
≥ 300mm ( 11.8 in ) for HDA M16 .
Anchor Fastening Technical Guide Edition 22 | 3.0 ANCHORING SYSTEMS | 3.3.1 HDA UNDERCUT ANCHORS Hilti , Inc . 1-800-879-8000 | en español 1-800-879-5000 | www . hilti . com | Hilti ( Canada ) Corporation | www . hilti . ca | 1-800-363-4458
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