HAC_Technical-Guide

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Cast-In Anchor Channel Product Guide, Edition 1 • 02/2019
2.1 HAC
Nomenclature
2.2 Geometric Parameters 2.3 Structural Performance
2.4 Ordering
Information
2.5 Standard
Portfolio
2.6 HAC Custom
Solutions
HAC
HAC
CRFoS U
HAC EDGE HBC-C
HAC-T
HAC-30
HAC-T
EDGE
HBC-T
HBC-B
HAC
HAC
CRFoS U
HAC EDGE HBC-C
HAC-T
HAC-30
HAC-T
EDGE
HBC-T
HBC-B
1. Anchor
Channel Systems
2. HAC
Portfolio
3. HAC
Applications
4. Design
Introduction
5. Base material 6. Loading
7. Anchor Channel
Design Code
8. Reinforcing
Bar Anchorage
9. Special Anchor
Channel Design
10. Design
Software
11. Best
Practices
12. Instructions
for Use
13. Field Fixes
14. Design
Example
Hexagonal head nut
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.
Table 2.2.12.1 — Material specifications of HBC-C and
HBC-C-N Nuts
Material specifications
Material
ASTM A 563 Grade A; Stainless Steel 316
Dimensions
ASME/ANSI B18.2.2 - 1986
Finish
ASTM B 633-98, SC 1 Type I
Thread
Class 2A fit; Class 2B thrd; ASME B1.1
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
Criteria units M12 M16 M20
p
a
(pitch size) mm 1.75 2.00 2.50
c max. mm 0.60 0.80 0.80
min. mm 0.15 0.20 0.20
d
a
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
m
max. mm 10.80 14.80 18.00
min. mm 10.37 14.10 16.90
m
w
min. mm 8.30 11.30 13.50
s
max. mm 18.00 24.00 30.00
min. mm 17.73 23.67 29.16
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.
2.2.12 HILTI CHANNEL BOLTS HARDWARE
Figure 2.2.12.2 — HBC-C and HBC-C-N nut dimensions.
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.
Table 2.2.12.3 — Material specification of HBC-C and
HBC-C-N washers
Material specifications
Material
Carbon steel, Hardness A, 200 HV
Specifications
ISO 7089 and ISO 7093-1
Finish
ASTM B 633-98, SC 1 Type I
Figure 2.2.12.3 — HBC-C and HBC-C-N washer dimensions.