Williams Form Engineering Corp. Williams Form Engineering Corp.
Williams Form Engineering Corp.
DownloadsDownloadsWhat's NewContact UsAbout UsWilliams Form Engineering Corp.
Ground Anchor Systems
Concrete Anchor Systems
Post Tensioning Systems
Threaded Bars with Fasteners
Tie Rods & Tie Backs
Micro Piles
Concrete Forming Hardware Systems
Williams products are made in the USA

Hollow Injection Bar

Threaded
Bar Types

Geo-Drill
Information

Geo-Drill
Accessories
Case
Histories
Corrosion
Protection
 
Structural Properties
Yield Stress
Ultimate Stress
85 KSI
(586 MPa)
105 KSI
(724 MPa)
Minimum Elongation
15%
150 KSI All-Thread-Bar
Unique Thread Form
 
B7X1 Domestic Hollow Injection Bar
Bar
Diameter
Average
Inner
Diameter
Minimum Net
Area Through
Threads
Minimum
Ultimate
Strength
Minimum
Yield
Strength
Nominal
Weight
Part
Number
32 mm
(1-1/4”)
0.787”
(20.0 mm)
0.556 in2
(359 mm
2)
58.4 kips
(260 kN)
47.2 kips
(210 kN)
2.1 lbs/ft
(3.1 kg/m)
B7X1-032N
32S mm
(1-1/4”)
0.626”
(15.9 mm)
0.776 in2
(501 mm
2)
81.5 kips
(363 kN)
66.0 kips
(294 kN)
2.7 lbs/ft
(4.0 kg/m)
B7X1-032S
38 mm
(1-1/2")
0.830”
(21.1 mm)
1.067 in2
(688 mm
2)
112 kips
(498 kN)
90.7 kips
(404 kN)
3.76 lbs/ft
(5.6 kg/m)
B7X1-038N
51 mm
(2")
1.187”
(30.1 mm)
1.795 in2
(1158 mm
2)
188 kips
(837 kN)
152 kips
(677 kN)
6.26 lbs/ft
(9.3 kg/m)
B7X1-051N
76 mm
(3”)
1.890”
(48.0 mm)
3.880 in2
(2503 mm
2)
407 kips
(1811 kN)
329 kips
(1466 kN)
13.79 lbs/ft
(20.5 kg/m)
B7X1-076N
B7Y1 Non-Domestic Hollow Injection Bar
Bar Designation
& Outer
Diameter
Average
Inner
Diameter
Minimum Net
Area Through
Threads
Minimum
Ultimate
Strength
Minimum
Yield
Strength
Nominal
Weight
Part
Number

T30S - 30 mm
(1.18")

11 mm
(0.43")
0.662 in2
(427 mm
2)
71.9 kips
(320 kN)
58.5 kips
(260 kN)
2.42 lbs/ft
(3.6 kg/m)
B7Y1-030S
T40N - 40 mm
(1.57")
20 mm
(0.79")
1.046 in2
(675 mm
2)
121 kips
(539 kN)
96.7 kips
(430 kN)
4.23 lbs/ft
(6.3 kg/m)
B7Y1-040N
T40S - 40 mm
(1.57")
16 mm
(0.63")
1.222 in2
(788 mm
2)
148 kips
(660 kN)
118 kips
(525 kN)
4.84 lbs/ft
(7.2 kg/m)
B7Y1-040S
T52N - 52 mm
(2.05")
24 mm
(0.94")
1.874 in2
(1209 mm
2)
209 kips
(929 kN)
164 kips
(730 kN)
6.92 lbs/ft
(10.3 kg/m)
B7Y1-052N
* T73N - 73 mm
(2.879")
53 mm
(2.08")
2.5 in2
(1615 mm
2)
260 kips
(1160 kN)
218 kips
(970 kN)
8.9 lbs/ft
(13.2 kg/m)
B7Y1-073N*
T76S - 76 mm
(2.99")
45 mm
(1.77")
3.891 in2
(2510 mm
2)
427 kips
(1900 kN)
337 kips
(1500 kN)
13.23 lbs/ft
(19.7 kg/m)
B7Y1-076S
* T103N - 73 mm
(4.06")
78 mm
(3.07")
4.87 in2
(3140 mm
2)
510 kips
(2270 kN)
405 kips
(1800 kN)
17.0 lbs/ft
(25.3 kg/m)
B7Y1-103N*
* T130N - 73 mm
(5.12")
60 mm
(2.36")
16.2 in2
(10452 mm
2)
1785 kips
(7940 kN)
1180 kips
(5250 kN)
50.4 lbs/ft
(78 kg/m)
B7Y1-130N*
* Diameter available on special order. Contact your Williams representative for fastener and drill bit information.
Threaded Bar Profile
The Injection Bar is a high strength-impact resistant heavy wall steel tubing conforming to ASTM A519 which is continuously threaded over it's 10' length with a heavy duty left hand thread/deformation pattern. The steel tubing provides maximum flow with minimum resistance during high pressure flushing and grouting operations. The thread form (similar for all diameters) is a unique Williams feature that provides a lower thread pitch angle to provide easier coupling disengagement without “locking up”, than conventional rope threads during drilling operations. This thread form provides more surface area and thread/deformations per unit length for superior bond capabilities over that of competitive drill steel thread forms. The bar's thread/deformation pattern has also shown to exceed the bond characteristics of ASTM A615 reinforcing steel. The lower thread angle allows the installed anchor to be torque-tensioned for fast tie back installations. The Geo-Drill Injection Anchor system is available with enhanced corrosion protection with hot-dip galvanized/epoxy coated bars and components. Installation adapters for the Geo-Drill Injection Anchors are available for all drill rigs.
Williams Form Engineering Corp.
Threaded
Bar Types

Geo-Drill
Information

Geo-Drill
Accessories
Case
Histories
Corrosion
Protection
Contact Us Home
Williams Form Engineering Corp. All rights reserved.