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Ground Anchor Systems
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Micro Piles
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Micro Pile
Information
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Accessories
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Histories
Corrosion
Protection
150 KSI All-Thread-Bar Grade 75 All-Thread Rebar
B7X Geo-Drill Bar Stop-Type Couplings
Compression Sleeves Reducer Couplings
Hex Nuts Steel Bearing Plates
PVC Centralizer
150 KSI All-Thread-Bar - ASTM A722
150 KSI All-Thread-Bar
R71 150 KSI All-Thread-Bar - ASTM A722
Nominal Bar
Diameter
& Pitch
Minimum
Net Area
Thru Threads
Minimum
Ultimate
Strength

Minimum
Yield
Strength

Nominal
Weight
Approx.
Thread
Major Dia.
Part
Number
1-3/8" - 4
(36 mm)
1.58 in2
(1019 mm2)

237 kips
(1054 kN)

190 kips
(843 kN)

5.71 lbs./ft.
(8.50 Kg/M)

1-9/16"
(39.7 mm)
R71-11
1-3/4" - 3-1/2
(46 mm)
2.60 in2
(1664 mm2)

390 kips
(1734 kN)

312 kips
(1388 kN)

9.06 lbs./ft.
(13.5 Kg/M)
2"
(50.8 mm)
R71-14
2-1/4"" - 3-1/2
(57 mm) **
4.08 in2
(2632 mm2)

613 kips
(2727 kN)

490 kips
(2181 kN)

14.1 lbs./ft.
(20.8 Kg/M)

2-1/2"
(63.5 mm)
R71-18
2-1/2" - 3
(65 mm)
5.19 in2
(3350 mm2)

778 kips
(3457 kN)

622 kips
(2766 kN)

18.2 lbs./ft.
(27.1 Kg/M)

2-3/4"
(69.9 mm)
R71-20
3" - 3
(75 mm)
6.85 in2
(4419 mm2)

1027 kips
(4568 kN)

822 kips
(3656 kN)

24.1 lbs./ft.
(35.8 Kg/M)

3-1/8"
(79.4 mm)
R71-24
** The 3" diameter bar is not covered under ASTM A722.

More detailed information on Williams 150 KSI All-Thread-Bar

Grade 75 All-Thead Rebar - ASTM A615
Grade 75 KSI All-Thread Rebar
R61 Grade 75 All-Thead Rebar - ASTM A615

Bar Designation
Nominal Diameter
& Pitch

Minimum
Net Area
Thru Threads
Minimum
Ultimate
Strength
Minimum
Yield
Strength
Nominal
Weight
Approx.
Thread
Major Dia.
Part
Number
#14 - 1-3/4" - 3
(43 mm)
2.25 in2
(1452 mm2)
225 kips
(1001 kN)
169 kips
(750 kN)
7.65 lbs./ft.
(11.8 Kg/M)
1-7/8"
(47.6 mm)
R61-14
#18 - 2-1/4" - 3
(57 mm)
4.00 in2
(2581 mm2)
400 kips
(1780 kN)
300 kips
(1335 kN)

13.6 lbs./ft.
(19.6 Kg/M)

2-7/16"
(61.9 mm)
R61-18
#20 - 2-1/2" - 2-3/4
(64 mm)
4.91 in2
(3168 mm2)
491 kips
(2184 kN)
368 kips
(1637 kN)
16.7 lbs./ft.
(24.8 Kg/M)
2-3/4"
(69.9 mm)
R61-20
#24 - 3" - 2-3/4
(76 mm)

6.82 in2
(4400 mm2)

682 kips
(3034 kN)

511 kips
(2273 kN)

24.0 lbs./ft.
(35.8 Kg/M)

3-3/16"
(81.0 mm)

R61-24

#28 - 3-1/2" - 2-3/4
(89 mm) *

9.61 in2
(6200 mm2)

961 kips
(4274 kN)

720 kips
(3206 kN)

32.7 lbs./ft.
(48.6 Kg/M)

3-3/4"
(95.3 mm)

R61-28

More detailed information on Williams Grade 75 All-Thead Rebar
B7X Geo-Drill Bar
Geo-Drill Injection Anchor
Bar
Diameter
Minimum Net
Area Through
Threads
Minimum
Ultimate
Strength
Minimum
Yield
Strength
Nominal
Weight
Average
Inner
Diameter
Part
Number
32 mm
(1-1/4”)
0.556 in2
(359 mm
2)
58.4 kips
(260 kN)
47.2 kips
(210 kN)
2.1 lbs/ft
(3.1 Kg/M)
0.787”
(20.0 mm)
B7X1-32
32X mm
(1-1/4”)
0.776 in2
(501 mm
2)
81.5 kips
(363 kN)
66.0 kips
(294 kN)
2.7 lbs/ft
(4.0 Kg/M)
0.626”
(15.9 mm)
B7X1-32X
38 mm
(1-1/2")
1.067 in2
(688 mm
2)
112 kips
(498 kN)
90.7 kips
(404 kN)
3.76 lbs/ft
(5.6 Kg/M)
0.830”
(21.1 mm)
B7X1-38
51 mm
(2")
1.795 in2
(1158 mm
2)
188 kips
(837 kN)
152 kips
(677 kN)
6.26 lbs/ft
(9.3 Kg/M)
1.187”
(30.1 mm)
B7X1-51
76 mm
(3”)
3.880 in2
(2503 mm
2)
407 kips
(1811 kN)
329 kips
(1466 kN)
13.79 lbs/ft
(20.5 Kg/M)
1.890”
(48.0 mm)
B7X1-76
More detailed information on Williams Geo-Drill Bar
Geo-Drill Bar Hex Nuts & Couplings
Stop-Type Couplings
Stop-Type Coupling R62 Stop-Type Coupling
for Grade 75 All-Thread Rebar
ASTM A108
Nominal
Bar
Diameter
Outside
Diameter
Overall
Length
Part
Number
#14 - 1-3/4"
(45 mm)

2-7/8"
(73.0 mm)

7-7/8"
(200 mm)

R62-14

#18 - 2-1/4"
(55 mm)

3-1/2"
(88.9 mm)

9-1/8"
(233 mm)

R62-18

#20 - 2-1/2"
(64 mm)

4"
(102 mm)

9-1/2"
(241 mm)

R62-20

#28 - 3-1/2"
(89 mm)

5-1/2"
(140 mm)

12"
(305 mm)

R62-28

R72 Stop-Type Coupling
for 150 KSI All-Thread-Bar
ASTM A29, Grade C1045
Nominal
Bar
Diameter
Outside
Diameter
Overall
Length
Part
Number
1-3/4"
(46 mm)
3"
(76 mm)
8-1/2"
(216 mm)
R72-14
2-1/2"
(65 mm)
4-1/4"
(108 mm)
9-3/8"
(238 mm)
R72-20
3"
(75 mm)
5"
(127 mm)
11-7/8"
(302 mm)
R72-24
Compression Sleeves
Compression Sleeves are smaller in diameter than standard coupings and are offered for use in splicing steel reinforcement for compression-only micropile designs. Compression Sleeves offer the advantage of designing around smaller diameter casings. Compression Sleeves will not develop the full tensile strength of the bar. Compression Sleeve
Reducer Coupling
Reducer Couplings are available to transition from a larger diameter bar to a smaller diameter bar. Reducer Couplings will develop the full ultimate strength of the bar. Reducer Coupling
Hex Nuts
Hex Nut R63 Hex Nut
for Grade 75 All-Thread Rebar
ASTM A108
Nominal
Bar
Diameter
Across
Flats
Thickness
Part
Number
#14 - 1-3/4"
(45 mm)

2-3/4"
(69.9 mm)

3-1/4"
(82.6 mm)

R63-14

#18 - 2-1/4"
(55 mm)

3-1/2"
(88.9 mm)

3-1/2"
(88.9 mm)

R63-18

#20 - 2-1/2"
(64 mm)

4"
(102 mm)

4"
(102 mm)

R63-20

* #28 - 3-1/2"
(89 mm)

5-1/2"
(140 mm)

6"
(142 mm)

R64-28

** Round nut with outside diameter of 6" (152 mm)
R73 Hex Nut
for 150 KSI All-Thread-Bar
ASTM A29
Nominal
Bar
Diameter
Across
Flats
Thickness
Part
Number
1-3/4"
(45 mm)
3"
(76 mm)
3-1/2"
(89 mm)
R73-14
2-1/2"
(65 mm)
4-1/4"
(108 mm)
4-3/4"
(120 mm)
R73-20
** 3"
(75 mm)
4-1/4"
(108 mm)
6-1/8"
(156 mm)
R74-24
** Round nut with outside diameter of 5" (127 mm)
Steel Bearing Plates
Round Hole Steel Bearing Plate Keyhole Steel Bearing Plate Dished Hole Steel Bearing Plate Studded Steel Bearing Plate Domed Steel Bearing Plate
S1K - Round S1K - Keyhole R80 - Dished S1K - Studded S1K - Domed
Williams steel bearing plates are standard with a round hole for non-grouted anchors. Also available are dished plates for use with spherical hex nuts and keyhole plates which provide free access for grout tube entry. Bearing plates are customized for each application. Plate dimensions should be specified around the parameters of the project. In addition, corrosion protection should be considered along with specifying hole diameter and bar angle. Stainless steel plates available upon request.
PVC Centralizer
PVC Centralizer The Williams PVC Centralizer is used to center the assembly in the drill hole. They are usually spaced 8 to 10 feet apart along the bar. To order, specify drill hole diameter, bar size or the outer diameter of the sleeve, when used over the bar.
Williams Form Engineering Corp.
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