Grade 75/80 All-Thread Rebar

 

Bar Designation
Nominal Diameter
& Pitch
Minimum
Net Area
Thru Threads
Grade 75 Grade 80 Nominal
Weight
Approx.
Thread
Major Dia.
Part
Number
Minimum
Ultimate
Strength
Minimum
Yield
Strength
Minimum
Ultimate
Strength
Minimum
Yield
Strength
#6 – 3/4” – 5
(19 mm)
0.44 in2
(284 mm2)
44 kips
(196 kN)
33 kips
(147 kN)
46 kips
(205 kN)
35 kips
(156 kN)
1.5 lbs/ft
(2.4 kg/m)
7/8”
(22.2 mm)
R61-06
#7 – 7/8” – 5
(22 mm)
0.60 in2
(387 mm2)
60 kips
(267 kN)
45 kips
(200 kN)
63 kips
(280 kN)
48 kips
(214 kN)
2.0 lbs/ft
(3.0 kg/m)
1”
(25 mm)
R61-07
#8 – 1” – 3-1/2
(25 mm)
0.79 in2
(510 mm2)
79 kips
(351 kN)
59 kips
(264 kN)
83 kips
(369 kN)
63 kips
(280 kN)
2.7 lbs/ft
(3.9 kg/m)
1-1/8”
(296 mm)
R61-08
#9 – 1-1/8” – 3-1/2
(29 mm)
1.00 in2
(645 mm2)
100 kips
(445 kN)
75 kips
(334 kN)
105 kips
(467 kN)
80 kips
(356 kN)
3.4 lbs/ft
(5.1 kg/m)
1-1/4”
(32 mm)
R61-09
#10 – 1-1/4” – 3
(32 mm)
1.27 in2
(819 mm2)
127 kips
(565 kN)
95 kips
(424 kN)
133 kips
(592 kN)
102 kips
(454 kN)
4.3 lbs/ft
(5.5 kg/m)
1-3/8”
(35 mm)
R61-10
#11 – 1-3/8” – 3
(36 mm)
1.56 in2
(1006 mm2)
156 kips
(694 kN)
117 kips
(521 kN)
164 kips
(730 kN)
125 kips
(556 kN)
5.3 lbs/ft
(7.9 kg/m)
1-1/2”
(38 mm)
R61-11
#14 – 1-3/4” – 3
(43 mm)
2.25 in2
(1452 mm2)
225 kips
(1001 kN)
169 kips
(750 kN)
236 kips
(1050 kN)
180 kips
(801 kN)
7.65 lbs/ft
(11.8 kg/m)
1-7/8”
(48 mm)
R61-14
#18 – 2-1/4” – 3
(57 mm)
4.00 in2
(2581 mm2)
400 kips
(1780 kN)
300 kips
(1335 kN)
420 kips
(1868 kN)
320 kips
(1423 kN)
13.6 lbs/ft
(19.6 kg/m)
2-7/16”
(62 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)
516 kips
(2295 kN)
393 kips
(1748 kN)
16.7 lbs/ft
(24.8 kg/m)
2-3/4”
(70 mm)
R61-20
#24 – 3” – 2-3/4
(76 mm) *
6.82 in2
(4400 mm2)
682 kips
(3034 kN)
512 kips
(2277 kN)
716 kips
(3785 kN)
546 kips
(2429 kN)
24.0 lbs/ft
(35.8 kg/m)
3-3/16”
(81 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)
1009 kips
(4488 kN)
769 kips
(3421 kN)
32.7 lbs/ft
(48.6 kg/m)
3-3/4”
(95 mm)
R61-28

* The #24 and #28 diameter bars are not covered under ASTM A615.

Structural Properties

Minimum
Yield
Ultimate
Tensile
Typical Elongation
in 8″ Bar
75 KSI
(517 MPa)
100 KSI
(689 MPa)
7% – 9%

Threads

Williams All-Thread Rebar has a cold-rolled, continuous, rounded course thread form. Williams special thread(deformation) pattern projects ultra-high relative rib area at 3 times that of conventional rebar. This provides for superior bond performance in concrete. Because of the high thread pitch and the full 360degree concentric thread form, Williams All-Thread Rebar should only bend under special provisions using larger bend diameters than typical ACI minimums. As an alternative to bending, Williams recommends the use of a steel plate or a threaded terminator disc to reduce development length. Threads are available in both right and left hand. Grades up to100 are available upon request.

Sizes

All-Thread Rebar is available in 11diameters from #6 (20 mm) through #28(89 mm). All diameters are available in continuous lengths up to 50’ (15.2 m).

Welding

Welding of All-Thread Rebar should be approached with caution since no specific provisions have been included to enhance its weldability. Refer to ANSI/AWS D1.4 for proper selections and procedures.

 

Grade 75/80 All-Thread Rebar Accessories

 

R62 Stop-Type Couplings

Grade 75/80 All-Thread Rebar
All Couplings and Hex/CollarNuts exceed 100% of the bar’s published ultimate strength and meet ACI 318Section 25.5.7.1 for mechanical rebar connections.

Bar Desig. &
Nominal Dia.
Outside
Diameter
Overall
Length
Part
Number
#6 – 3/4”
(19 mm)
1-1/4”
(32 mm)
3-1/2”
(89 mm)
R62-06
#7 – 7/8”
(22 mm)
1-3/8”
(35 mm)
4”
(102 mm)
R62-07
#8 – 1”
(25 mm)
1-5/8”
(41 mm)
4-1/2”
(114 mm)
R62-08
#9 – 1-1/8”
(29 mm)
1-7/8”
(48 mm)
5”
(127 mm)
R62-09
#10 – 1-1/4”
(32 mm)
2”
(51 mm)
5-1/2”
(140 mm)
R62-10
#11 – 1-3/8”
(36 mm)
2-1/4”
(57 mm)
6”
(152 mm)
R62-11
#14 – 1-3/4”
(43 mm)
2-7/8”
(73 mm)
6”
(152 mm)
R62-14
#18 – 2-1/4”
(57 mm)
3-1/2”
(89 mm)
7-1/8”
(181 mm)
R62-18
#20 – 2-1/2”
(64 mm)
4”
(102 mm)
8”
(203 mm)
R62-20
#24 – 3”
(76 mm)
5”
(127 mm)
9-3/4”
(248 mm)
R62-24
#28 – 3-1/2”
(89 mm)
5-1/2”
(140 mm)
12”
(305 mm)
R62-28

R63 Hex/Collar Nuts

Grade 75/80 All-Thread Rebar Hex Nut   Grade 75/80 All-Thread Rebar  Rounded Collar Nut

Bar Desig. &
Nominal Dia.
Across
Flats
Across
Corners
Thickness Part
Number
#6 – 3/4”
(19 mm)
1-1/4”
(32 mm)
1.44”
(37 mm)
1-1/8”
(29 mm)
R63-06
#7 – 7/8”
(22 mm)
1-7/16”
(37 mm)
1.66”
(42 mm)
1-1/4”
(32 mm)
R63-07
#8 – 1”
(25 mm)
1-5/8”
(41 mm)
1.88”
(48 mm)
1-3/8”
(35 mm)
R63-08
#9 – 1-1/8”
(29 mm)
1-7/8”
(48 mm)
2.17”
(55 mm)
1-1/2”
(38 mm)
R63-09
#10 – 1-1/4”
(32 mm)
2”
(51 mm)
2.31”
(59 mm)
2”
(51 mm)
R63-10
#11 – 1-3/8”
(36 mm)
2-1/4”
(57 mm)
2.60”
(66 mm)
2-1/8”
(54 mm)
R63-11
#14 – 1-3/4”
(43 mm)
2-3/4”
(70 mm)
3.18”
(81 mm)
2-1/2”
(64 mm)
R63-14
#18 – 2-1/4”
(57 mm)
3-1/2”
(89 mm)
4.04”
(103 mm)
3-3/4”
(95 mm)
R63-18
#20 – 2-1/2”
(64 mm)
3-3/4”
(95 mm)
OD 4”
(102 mm)
4”
(102 mm)
R63-20
#24 – 3”
(76 mm) *
4-1/2”
(114 mm)
OD 5”
(127 mm)
4-3/8”
(111 mm)
R64-24
#28 – 3-1/2”
(89 mm) *
5-1/2”
(140 mm)
OD 6”
(152 mm)
6”
(152 mm)
R64-28

*Rounded Collar Nut

 

R81 Spherical Washers

Grade 75/80 All-Thread Rebar

Bar Desig. &
Nominal Dia.
Thickness Outside
Dome
Part
Number
#6 – 3/4”
(19 mm)
35/64”
(14 mm)
2”
(51 mm)
R81-0675
#7 – 7/8”
(22 mm)
39/64”
(16 mm)
2-1/4”
(572 mm)
R81-0775
#8 – 1”
(25 mm)
5/8”
(16 mm)
2-1/2”
(64 mm)
R81-0875
#9 – 1-1/8”
(29 mm)
3/4”
(19 mm)
2-3/4”
(70 mm)
R81-0975
#10 – 1-1/4”
(32 mm)
53/64”
(21 mm)
3”
(76 mm)
R81-1075
#11 – 1-3/8”
(36 mm)
29/32”
(23 mm)
3-1/4”
(83 mm)
R81-1175
#14 – 1-3/4”
(43 mm)
1-7/64”
(28 mm)
3-3/4”
(95 mm)
R81-1475
#18 – 2-1/4”
(57 mm)
1-13/32”
(36 mm)
5”
(127 mm)
R81-1875
#20 – 2-1/2”
(64 mm)
1-1/2”
(38 mm)
5-1/4”
(133 mm)
R81-2075
#24 – 3”
(76 mm)
1-7/8”
(48 mm)
6-1/2”
(165 mm)
R81-2475
#28 – 3-1/2”
(89 mm)
1-1/2”
(38 mm)
7”
(178 mm)
R81-2875

Provides up to 5 ̊ angle when used with a dished plate.

 

R63-JN Jam Nuts

Grade 75/80 All-Thread Rebar
These Jam/Collar Nuts can not be substituted for full strength nuts and can not be used on bars other than Williams Grade 75/80All-Thread Rebar of the same diameter.

Bar Desig. &
Nominal Dia.
Across
Flats
Across
Corners
Thickness Part
Number
#6 – 3/4”
(19 mm)
1-1/4”
(32 mm)
1.44”
(37 mm)
9/16”
(14 mm)
R63-06JN
#7 – 7/8”
(22 mm)
1-7/16”
(37 mm)
1.66”
(42 mm)
5/8”
(16 mm)
R63-07JN
#8 – 1”
(25 mm)
1-5/8”
(41 mm)
1.88”
(48 mm)
11/16”
(17 mm)
R63-08JN
#9 – 1-1/8”
(29 mm)
1-7/8”
(48 mm)
2.17”
(55 mm)
3/4”
(19 mm)
R63-09JN
#10 – 1-1/4”
(32 mm)
2”
(51 mm)
2.31”
(59 mm)
15/16”
(24 mm)
R63-10JN
#11 – 1-3/8”
(36 mm)
2-1/4”
(57 mm)
2.6”
(66 mm)
1”
(25 mm)
R63-11JN
#14 – 1-3/4”
(43 mm) *
2-5/8”
(67 mm)
OD 2.88”
(73 mm)
1-3/16”
(30 mm)
R63-14JN
#18 – 2-1/4”
(57 mm) *
3-1/4”
(83 mm)
OD 3-1/2”
(89 mm)
1-11/16”
(43 mm)
R63-18JN
#20 – 2-1/2”
(64 mm) *
3-3/4”
(95 mm)
OD 4”
(102 mm)
1-11/16”
(43 mm)
R63-20JN
#24 – 3”
(76 mm) *
4-1/2”
(114 mm)
OD 5”
(127 mm)
2”
(51 mm)
R64-24JN
#28 – 3-1/2”
(89 mm) *
5”
(127 mm)
OD 5.5”
(140 mm)
2-1/4”
(57 mm)
R64-28JN

R9F Hardened Washers

Grade 75/80 All-Thread Rebar

Bar Desig. &
Nominal Dia.
Outside
Diameter
Inside
Diameter
Thickness Part
Number
#6 – 3/4”
(19 mm)
1-3/4”
(44 mm)
15/16”
(24 mm)
5/32”
(4 mm)
R9F-07-436
#7 – 7/8”
(22 mm)
2”
(51 mm)
1-1/8”
(296 mm)
5/32”
(4 mm)
R9F-08-436
#8 – 1”
(25 mm)
2-1/4”
(57 mm)
1-1/4”
(32 mm)
5/32”
(4 mm)
R9F-09-436
#9 – 1-1/8”
(29 mm)
2-1/4”
(57 mm)
1-1/4”
(32 mm)
5/32”
(4 mm)
R9F-09-436
#10 – 1-1/4”
(32 mm)
2-1/2”
(64 mm)
1-3/8”
(35 mm)
5/32”
(4 mm)
R9F-10-436
#11 – 1-3/8”
(36 mm)
3”
(76 mm)
1-5/8”
(41 mm)
5/32”
(4 mm)
R9F-12-436
#14 – 1-3/4”
(43 mm)
3-3/8”
(86 mm)
1-7/8”
(48 mm)
7/32”
(56 mm)
R9F-14-436
#18 – 2-1/4”
(57 mm)
4-1/2”
(114 mm)
2-5/8”
(67 mm)
9/32”
(7 mm)
R9F-20-436
#20 – 2-1/2”
(64 mm)
5”
(127 mm)
2-7/8”
(73 mm)
9/32”
(7 mm)
R9F-22-436
#24 – 3”
(76 mm)
6”
(142 mm)
3-3/8”
(86 mm)
9/32”
(7 mm)
R9F-26-436
#28 – 3-1/2”
(89 mm)
7”
(178 mm)
3-7/8”
(98 mm)
9/32”
(7 mm)
R9F-30-436

R8M Beveled Washers

Grade 75/80 All-Thread Rebar

Bar
Diameter
Degree
of Bevel
Outside
Diameter
Inside
Diameter
Maximum
Thickness
Minimum
Thickness
Part
Number
#6 – 3/4”
(19 mm)
2” sq.
(51 mm)
1”
(25 mm)
17/32”
(14 mm)
15/64”
(6 mm)
R8M-07
#7 – 7/8”
(22 mm)
2”
(51 mm)
1-3/16”
(30 mm)
9/16”
(14 mm)
1/4”
(6 mm)
R8M-09
#8 – 1”
(25 mm)
15° 2-13/16”
(71 mm)
1-5/16”
(33 mm)
1”
(25 mm)
5/16”
(8 mm)
R8M-09S
#9 – 1-1/8”
(29 mm)
15° 2-13/16”
(71 mm)
1-5/16”
(33 mm)
1”
(25 mm)
5/16”
(8 mm)
R8M-09S
#10 – 1-1/4”
(32 mm)
15° 3-3/8”
(86 mm)
1-9/16”
(40 mm)
1-15/64”
(444 mm)
3/8”
(9.5 mm)
R8M-12S
#11 – 1-3/8”
(36 mm)
15° 3-1/2”
(89 mm)
1-3/4”
(44 mm)
1-1/4”
(32 mm)
3/8”
(9.5 mm)
R8M-13S
#14 – 1-3/4”
(43 mm)
15° 5-1/2”
(140 mm)
2-1/8”
(54 mm)
1-5/8”
(41 mm)
3/8”
(9.5 mm)
R8M-16S
#18 – 2-1/4”
(57 mm)
15° 5”
(127 mm)
3”
(76 mm)
1-5/8”
(41 mm)
19/64”
(7.5 mm)
R8M-18
#20 – 2-1/2”
(64 mm)
10° 5-1/2”
(140 mm)
3”
(76 mm)
1-23/32”
(44 mm)
3/4”
(19 mm)
R8M-20
#24 – 3”
(76 mm)
10° 7”
(178 mm)
3-5/8”
(92 mm)
2”
(51 mm)
3/4”
(19 mm)
R8M-24
#28 – 3-1/2”
(89 mm)
10° 8”
(203 mm)
4-1/4”
(108 mm)
2-19/64”
(58 mm)
7/8”
(22 mm)
R8M-28
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