1. Anchor
Channel Systems
2. HAC
Portfolio
3. HAC
Applications
4. Design
Introduction
5. Base material
6. Loading
Hexagonal head nut
9. Special Anchor
Channel Design
10. Design
Software
11. Best
Practices
12. Instructions
for Use
13. Field Fixes
14. Design
Example
Flat washers
Flat washers ensure compression forces (due to installation
torque) from the nut are distributed over a larger surface,
preventing localized damage of the base surface. Moreover, it
ensures the nut presses against a smooth surface, reducing the
probability of relaxation of the nut, as is the case when the nut
bears against uneven surfaces.
Anchor channel systems consist of a group of anchors, channel
profile, and matching t-bolt. The t-bolt hardware consists of a
hex head nut and a flat washer.
8. Reinforcing
Bar Anchorage
2.2.12 HILTI CHANNEL BOLTS HARDWARE
7. Anchor Channel
Design Code
Table 2.2.12.3 — Material specification of HBC-C and
HBC-C-N washers
Carbon steel, Hardness A, 200 HV
ASTM A 563 Grade A; Stainless Steel 316 Specifications ISO 7089 and ISO 7093-1
Dimensions ASME/ANSI B18.2.2 - 1986 Finish ASTM B 633-98, SC 1 Type I
Finish ASTM B 633-98, SC 1 Type I Thread Class 2A fit; Class 2B thrd; ASME B1.1
Figure 2.2.12.3 — HBC-C and HBC-C-N washer dimensions.
Material Material Material specifications
Material specifications
Figure 2.2.12.1 — Isometric view of HBC-C and HBC-C-N nut.
Table 2.2.12.2 — HBC-C and HBC-C-N nut dimensions
2.00 2.50
c max. mm 0.60 0.80 0.80
min. mm 0.15 0.20 0.20
max. mm 13.00 17.30 21.60
min. mm 12.00 16.00 20.00
d w min. mm 16.60 22.50 27.70
e min. mm 20.03 26.75 32.95
max. mm 10.80 14.80 18.00
min. mm 10.37 14.10 16.90
min. mm 8.30 11.30 13.50
max. mm 18.00 24.00 30.00
min. mm 17.73 23.67 29.16
d a
m
m w
s
1.75 mm p a (pitch size) M20
M16 M12 units Criteria
Table 2.2.12.1 — Material specifications of HBC-C and
HBC-C-N Nuts
Different surfaces and materials might have a significant
influence on the ratio between torque moment and pre-tension.
Therefore, it is important to use the washer as per product
approval or recommended by Hilti.
Figure 2.2.12.2 — HBC-C and HBC-C-N nut dimensions.
Cast-In Anchor Channel Product Guide, Edition 1 • 02/2019
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