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R7S 150 KSI Spin-Lock Concrete Anchor
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The R7S Spin-Lock Mechanical Concrete Anchor incorporates a high strength post-tension steel giving the designer the highest strength to anchor diameter ratio available for use with the Spin-Lock head assembly.
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R7S Structural Properties
| Yield Stress |
Ultimate Stress |
Elongation in 20
bar diameter |
Reduction
of Area |
127.7 KSI
(880 Mpa) |
150 KSI
(1034 Mpa |
4% |
20% |
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R7S 150 KSI Spin-Lock Concrete Anchor - ASTM A-722
Dia. &
Threads
Per in.
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Recomm.
Design Load
at 2:1 Safety
Factor
|
Maximum
Working
Load
to Yield
|
Average
Ultimate
Strength
|
Ultimate
Shear
Strength |
Drill
Hole
Dia.
(1) |
Type
Head
Ass'y |
Torque ft.-lbs. |
Min. Embed.
Depth in
3000 PSI
Concrete |
Part
Number
|
To Expand
Shell
(2) |
On Nut
for
Tension |
1" - 8
(25 mm) |
45 kips
(200 kN) |
72 kips
(320 kN) |
90 kips
(400 kN) |
54 kips
(240 kN) |
1-3/4"
(44 mm)
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C 14
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500 ft.-lbs.
(650*)
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680
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18"
(457 mm) |
R7S08C14
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1-1/4" - 7
(32 mm) |
72.5 kips
(322 kN)
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116 kips
(516 kN)
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145 kips
(649 kN)
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87 kips
(389 kN)
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2-1/2"
(65 mm)
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B 20
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750 ft.-lbs.
(1200*)
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1350
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23"
(584 mm) |
R7S10B20
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1-1/2" - 6
(38 mm) |
105 kips
(467 kN) |
168 kips
(747 kN) |
210 kips
(932 kN)
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126 kips
(559 kN) |
3"
(76 mm)
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B 24
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1000 ft.-lbs.
(1700*)
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Note (3)
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26"
(660 mm) |
R7S12B24
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1-7/8"-6
(48 mm) |
180 kips
(799 kN) |
289 kips
(1284 kN)
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360 kips
(1598 kN)
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216 kips
(959 kN) |
3-1/2"
(89 mm)
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C 28
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1000 ft.-lbs.
(2000*)
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Note (3)
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36"
(914 mm) |
R7S15C28
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NOTES:
(*) Do not exceed these numbers
(1) Care should be taken to drill a straight and properly sized hole.
(2) More torque may be required on long anchors or if the head assembly is next to rebar. Consult your Williams Representative for more specific details.
(3) Stress to desired tensile load using a hollow ram hydraulic jack. Consult your Williams Representative.
(4) Full ultimate strength of anchor can be achieved at listed embedment depth, provided there are no edge or spacing effects on the anchor.
WILLIAMS reserves the right to ship full length or coupled units as necessary.
All above torque values are used for clean, dry (un-greased) threads. For greased thread torque values, contact your local Williams representative.
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 Williams Form Engineering Corp. All rights reserved. |
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