Product Technical Guides : US-EN Anchor Fastening - August 2021 | Page 44

Table 8 — Minimum edge distance , spacing , and concrete thickness for 5 / 8-in . diameter Hilti HIT-Z and HIT-Z-R rods 1
Nominal anchor diameter d in . 5 / 8
Effective embedment
h ef
( mm )
( 95 )
( 143 )
( 191 )
in .
3-3 / 4
5-5 / 8
7-1 / 2
Drilled hole condition - - 2 2 1 or 2 2 2 1 or 2 2 2 1 or 2 in . 5-1 / 2 7-3 / 4 9-3 / 8 7-3 / 8 9-5 / 8 10-1 / 2 9-1 / 4 11-1 / 2 12-1 / 4
Minimum concrete thickness h
( mm ) ( 140 ) ( 197 ) ( 238 ) ( 187 ) ( 244 ) ( 267 ) ( 235 ) ( 292 ) ( 311 )
Uncracked concrete
Cracked concrete
Minimum edge and spacing Case 1
Minimum edge and spacing Case 2
Minimum edge and spacing Case 1
Minimum edge and spacing Case 2
c min , 1
in .
( mm )
6-1 / 4
( 159 )
4-1 / 2
( 114 )
3-3 / 4
( 95 )
4-5 / 8
( 117 )
3-5 / 8
( 92 )
3-1 / 4
( 83 )
3-3 / 4
( 95 )
3-1 / 8
( 79 )
3-1 / 8
( 79 )
s min , 1
in .
( mm )
18-3 / 8
( 467 )
12-7 / 8
( 327 )
10-5 / 8
( 270 )
13-7 / 8
( 352 )
10-3 / 8
( 264 )
9-3 / 4
( 248 )
10-7 / 8
( 276 )
8-3 / 8
( 213 )
7-3 / 8
( 187 )
c min , 2
in .
( mm )
11-3 / 8
( 289 )
7-3 / 4
( 197 )
6-1 / 4
( 159 )
8-1 / 4
( 210 )
6-1 / 8
( 156 )
5-1 / 2
( 140 )
6-3 / 8
( 162 )
4-7 / 8
( 124 )
4-5 / 8
( 117 )
s min , 2
in .
( mm )
3-1 / 8
( 79 )
3-1 / 8
( 79 )
3-1 / 8
( 79 )
3-1 / 8
( 79 )
3-1 / 8
( 79 )
3-1 / 8
( 79 )
3-1 / 8
( 79 )
3-1 / 8
( 79 )
3-1 / 8
( 79 )
c min , 1
in .
( mm )
4-5 / 8
( 117 )
3-3 / 8
( 86 )
3-1 / 8
( 79 )
3-1 / 2
( 89 )
3-1 / 8
( 79 )
3-1 / 8
( 79 )
3-1 / 8
( 79 )
3-1 / 8
( 79 )
3-1 / 8
( 79 )
s min , 1
in .
( mm )
13-7 / 8
( 352 )
9-1 / 2
( 241 )
8-3 / 4
( 222 )
10-1 / 8
( 257 )
6-1 / 2
( 165 )
5-3 / 8
( 137 )
7-1 / 8
( 181 )
3-7 / 8
( 98 )
3-1 / 8
( 79 )
c min , 2
in .
( mm )
8-1 / 4
( 210 )
5-1 / 2
( 140 )
4-3 / 8
( 111 )
5-7 / 8
( 149 )
4-1 / 4
( 108 )
3-7 / 8
( 98 )
4-1 / 2
( 114 )
3-3 / 8
( 86 )
3-1 / 8
( 79 )
s min , 2
in .
( mm )
3-1 / 8
( 79 )
3-1 / 8
( 79 )
3-1 / 8
( 79 )
3-1 / 8
( 79 )
3-1 / 8
( 79 )
3-1 / 8
( 79 )
3-1 / 8
( 79 )
3-1 / 8
( 79 )
3-1 / 8
( 79 )
Table 9 — Minimum edge distance , spacing , and concrete thickness for 3 / 4-in . diameter Hilti HIT-Z and HIT-Z-R rods 1
Nominal anchor diameter d in . 3 / 4
Effective embedment
h ef
( mm )
( 102 )
( 171 )
( 216 )
in .
4
6-3 / 4
8-1 / 2
Drilled hole condition - - 2 2 1 or 2 2 2 1 or 2 2 2 1 or 2 in . 5-3 / 4 8 11-1 / 2 8-1 / 2 10-3 / 4 13-1 / 8 10-1 / 4 12-1 / 2 14-1 / 2
Minimum concrete thickness h
( mm ) ( 146 ) ( 203 ) ( 292 ) ( 216 ) ( 273 ) ( 333 ) ( 260 ) ( 318 ) ( 368 )
Uncracked concrete
Cracked concrete
Minimum edge and spacing Case 1
Minimum edge and spacing Case 2
Minimum edge and spacing Case 1
Minimum edge and spacing Case 2
c min , 1
in .
( mm )
9-3 / 4
( 248 )
7
( 178 )
5
( 127 )
6-5 / 8
( 168 )
5-1 / 4
( 133 )
4-1 / 4
( 108 )
5-1 / 2
( 140 )
4-1 / 2
( 114 )
4
( 102 )
s min , 1
in .
( mm )
28-3 / 4
( 730 )
20-5 / 8
( 524 )
14
( 356 )
19-3 / 8
( 492 )
15-1 / 4
( 387 )
12-5 / 8
( 321 )
16
( 406 )
13-1 / 4
( 337 )
11
( 279 )
c min , 2
in .
( mm )
18-1 / 8
( 460 )
12-5 / 8
( 321 )
8-1 / 2
( 216 )
11-7 / 8
( 302 )
9-1 / 8
( 232 )
7-1 / 4
( 184 )
9-5 / 8
( 244 )
7-3 / 4
( 197 )
6-1 / 2
( 165 )
s min , 2
in .
( mm )
3-3 / 4
( 95 )
3-3 / 4
( 95 )
3-3 / 4
( 95 )
3-3 / 4
( 95 )
3-3 / 4
( 95 )
3-3 / 4
( 95 )
3-3 / 4
( 95 )
3-3 / 4
( 95 )
3-3 / 4
( 95 )
c min , 1
in .
( mm )
7-1 / 4
( 184 )
5-1 / 4
( 133 )
4-1 / 8
( 105 )
5
( 127 )
4
( 102 )
3-3 / 4
( 95 )
4-1 / 8
( 105 )
3-3 / 4
( 95 )
3-3 / 4
( 95 )
s min , 1
in .
( mm )
21-3 / 4
( 552 )
15-1 / 2
( 394 )
12-1 / 4
( 311 )
14-1 / 2
( 368 )
11-3 / 8
( 289 )
9
( 229 )
12-1 / 8
( 308 )
8-3 / 4
( 222 )
6-1 / 2
( 165 )
c min , 2
in .
( mm )
13-1 / 4
( 337 )
9-1 / 4
( 235 )
6
( 152 )
8-5 / 8
( 219 )
6-5 / 8
( 168 )
5-1 / 8
( 130 )
7
( 178 )
5-1 / 2
( 140 )
4-1 / 2
( 114 )
s min , 2
in .
( mm )
3-3 / 4
( 95 )
3-3 / 4
( 95 )
3-3 / 4
( 95 )
3-3 / 4
( 95 )
3-3 / 4
( 95 )
3-3 / 4
( 95 )
3-3 / 4
( 95 )
3-3 / 4
( 95 )
3-3 / 4
( 95 )
1 Linear interpolation is permitted to establish an edge distance and spacing combination between Case 1 and Case 2 . Linear interpoloation for a specific edge distance c , where c min , 1
< c < c min , 2 , will determine the permissible spacing s as follows :
( s min , 1 – s min , 2
) s ≥ s min , 2
+ ____________ ( c – c min , 2 )
( c min , 1 – c min , 2
)
2 For shaded cells , drilling dust must be removed from drilled hole to justify minimum concrete thickness .
40 Anchor Fastening Technical Guide Edition 22 | 3.0 ANCHORING SYSTEMS | 3.2.2 HILTI HIT-HY 200 A / R V3 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