Supplement for Hilti Anchors For Attachments to Hollow Core Concrete Panels
6
August 2019
HDI-P DROP-IN ANCHORS
PRODUCT DESCRIPTION
HDI-P Drop-in Anchors
Anchor System Features and Benets
HDI-P Drop-in Anchor
• Optimized anchor length to allow reliable fastenings in hollow core panels,
precast plank and post tensioned slabs
• Shallow drilling enables fast installation
• Lip provides flush installation, consistent anchor depth and easy rod alignment
• HSD-G 3/8 setting tool with hand guard leaves mark on flange when anchor is
set properly to enable inspection and verification of proper expansion
INSTALLATION PAR AMETERS
Table 5 — HDI-P specifications
Setting information Symbol Units
Nominal anchor diameter
1/4 3/8 1/2
Nominal bit diameter d
bit
in. 3/8 1/2 5/8
Threaded rod diameter d
rod
in. 1/4 3/8 1/2
Minimum base material
thickness
h
min
in. 1-3/8
Anchor length ℓ
in. 5/8 3/4 1
(mm) (15.9) (19.1) (25.4)
Hole depth in base material h
0
in. 5/8 3/4 1
(mm) (15.9) (19.1) (25.4)
Minimum anchor spacing s
min
in. 4-1/8
Minimum edge distance c
min
in. 3-3/4
1 The Admissible Anchor Location must be established to prevent damage to the
prestressed cable during the drilling process. Verify the location and height of the cable
with the hollow core plank supplier to confirm Admissible Anchor Location.
2 Minimum compressive strength of hollow core panels is 7,000 psi at the time of installation.
The minimum thickness h
min
is 1-3/8 inches.
Figure 3 — Installation of Hilti HDI-P in hollow core
concrete panels