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Sledge Drive Rock Anchor Systems
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Quick, simple anchor designed to develop the full strength of the bar. Recommended for short anchors in rock or concrete. Available with 1-5/8" diamenter aluminum expansion shell. In temporary situations, bar may be removed and used again. Williams can supply custom length steel drive pipes at your request. |
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With B1S
Smooth Rod
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With B7S
All-Thread Coil Rod
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With R61 Grade 75 or R50 Grade 60 All-Thread Rebar
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| Steel Type |
Bar
Diameter |
Recommended Safe
Working Load to
2:1 Safety Factor |
Average
Ultimate
Strength |
Drill
Hole |
Part Number
B8S Cone / Shell
(B7S Cone / Shell) |
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B1S
Smooth Rod
B7S
All-Thread
Coil Rod
B8S
All-Thread
N.C. Rod
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3/8"
(10 mm)
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4.9 kips
(21.8 kN)
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9.8 kips
(43.6 kN)
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1-5/8"
(41 mm)
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R4M03RB0 / R4A13
(R4MC3RB0 / R4A13)
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1/2"
(12 mm)
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9 kips
(40.0 kN)
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18 kips
(80.1 kN)
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1-5/8"
(41 mm)
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R4M04RB0 / R4A13
(R4MC4RB0 / R4A13)
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5/8"
(16 mm)
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11.3 kips
(40.0 kN)
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22.5 kips
(100 kN)
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1-5/8"
(41 mm)
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R4M05RB0 / R4A13
(R4MC5RB0 / R4A13)
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3/4"
(20 mm)
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18 kips
(80.0 kN)
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36 kips
(160 kN)
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1-5/8"
(41 mm)
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R4M06RAC / R4A13
(R4MC6RAC / R4A13)
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7/8"
(22 mm)
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29 kips
(129 kN)
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58 kips
(258 kN)
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1-5/8"
(41 mm)
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R4M07RAC / R4A13
(R4MC7RAC / R4A13)
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R50
Grade 60
All-Thread
Rebar
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#4 - 1/2"
(12 mm)
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9 kips
(40 kN)
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18 kips
(80.1 kN)
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1-5/8"
(41 mm)
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R4MG4RAC / R4A13
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#5 - 5/8"
(16 mm)
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13.8 kips
(62 kN)
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27.9 kips
(124 kN)
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1-5/8"
(41 mm)
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R4MG5RAC / R4A13
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R61
Grade 75
All-Thread
Rebar
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#6 - 3/4"
(20 mm)
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22 kips
(97.9 kN)
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44 kips
(196 kN)
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1-5/8"
(41 mm)
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R4MG6RAC / R4A13
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Bars Associated with Sledge Drive Anchors |
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For bar selection, Williams offers continuously threaded or smooth with threaded ends C-1045 bars. Both coil and NC threads are available. Williams also offers R51 Grade 60 All-Thread Rebar and R61 All-Thread Rebar for its sledge drive anchors.
Grade 75 All-Thread Rebar
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 Williams Form Engineering Corp. All rights reserved. |
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