Masonry Anchor Strength Design Guide 2024
Table 3 — Steel design strength for steel bolt / cap screw for Hilti HIS-N and HIS-RN internally threaded inserts for use with ACI 318 Chapter 17 6
ASTM A193 B7 4 , 5 ASTM A193 Grade B8M Stainless Steel 5
Thread Size
3 / 8-16 UNC
1 / 2-13 UNC
Tensile 1
ФN sa lb ( kN )
Shear 2
ФV sa lb ( kN )
Seismic
Shear 3
ФV sa , eq lb ( kN )
Tensile 1
ФN sa lb ( kN )
Shear 2
ФV sa lb ( kN )
Seismic
Shear 3
ФV sa , eq lb ( kN )
7,270 |
3,780 |
3,555 |
5,540 |
3,070 |
2,885 |
( 32.3 ) |
( 16.8 ) |
( 15.8 ) |
( 24.6 ) |
( 13.7 ) |
( 12.8 ) |
10,525 |
6,920 |
6,505 |
10,145 |
5,620 |
5,285 |
( 46.8 ) |
( 30.8 ) |
( 28.9 ) |
( 45.1 ) |
( 25.0 ) |
( 23.5 ) |
1 Tensile = ΦA se , N f uta as noted in ACI 318-19 17.6.1.2 . 2 Shear = Φ 0.60 A se , V f uta as noted in ACI 318-19 17.7.1.2b .
3 Seismic Shear = α V , seis
ΦV sa
: Reduction for seismic shear only . See ACI 318 for additional information on seismic applications . 4 ASTM A193 B7 steel bolts are considered ductile steel elements . 5 Hilti HIS-N inserts , HIS-RN inserts , and ASTM A193 Grade B8M stainless steel bolts are considered brittle steel elements . 6 Table values are the lesser of steel failure in the HIS- ( R ) N insert or inserted steel bolt .
Table 4 — Steel design strength for steel bolt / cap screw for Hilti HIT-IC internally threaded inserts for use with ACI 318 Chapter 17 6
ASTM A193 B7 4 , 5
Thread Size
5 / 16-18 UNC
3 / 8-16 UNC
1 / 2-13 UNC
Tensile 1
ФN sa lb ( kN )
Shear 2
ФV sa lb ( kN )
Seismic
Shear 3
ФV sa , eq lb ( kN )
2,740 |
2,555 |
1,790 |
( 12.2 ) |
( 11.4 ) |
( 8.0 ) |
4,050 |
3,780 |
2,645 |
( 18.0 ) |
( 16.8 ) |
( 11.8 ) |
9,800 |
6,920 |
4,845 |
( 43.6 ) |
( 30.8 ) |
( 21.6 ) |
1 Tensile = ΦA se , N f uta as noted in ACI 318-19 17.6.1.2 . 2 Shear = Φ 0.60 A se , V f uta as noted in ACI 318-19 17.7.1.2b .
3 Seismic Shear = α V , seis
ΦV sa
: Reduction for seismic shear only . See ACI 318 for additional information on seismic applications . 4 ASTM A193 B7 steel bolts are considered ductile steel elements . 5 Hilti HIT-IC inserts are considered brittle steel elements . 6 Table values are the lesser of steel failure in the HIT-IC insert or inserted steel bolt .
Masonry Fastening Technical Guide Edition 24 | 7.3 STEEL DESIGN APPENDIX 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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