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Grade 75 All-Thread Rebar Accessories

Threaded
Bar Types
Grade 75
Information
Grade 75
Accessories
Case
Histories
Corrosion
Protection

We offer a number of component parts and accessories for our Grade 75 All-Thread Rebar. All Couplings and Hex Nuts exceed 100% of the bar’s published ultimate strength and meet ACI 318 Section 12.14.3.2 for mechanical rebar connections.

Hex Nuts Stop-Type Couplings
Hardened Washers Spherical Washers
Jam Nuts Bevel Washers
Steel Plates

R63 Hex Nuts - ASTM A108

Hex Nut
Nominal
Bar
Diameter
Across
Flats
Across
Corners
Thickness
Part
Number
#6 - 3/4"
(19 mm)
1-1/4"
(31.8 mm)
1.44"
(36.6 mm)
1-5/8"
(41.3 mm)
R63-06
#7 - 7/8"
(22 mm)

1-7/16"
(36.5 mm)

1.66"
(42.2 mm)

1-3/4"
(44.5 mm)

R63-07

#8 - 1"
(25 mm)

1-5/8"
(41.3 mm)

1.88"
(47.8 mm)

2"
(50.8 mm)

R63-08

#9 - 1-1/8"
(29 mm)

1-7/8"
(47.6 mm)

2.16"
(54.9 mm)

2"
(50.8 mm)

R63-09

#10 - 1-1/4"
(32 mm)

2"
(50.8 mm)

2.31"
(58.7 mm)

2-3/16"
(55.6 mm)

R63-10

#11 - 1-3/8"
(36 mm)

2-1/4"
(57.2 mm)

2.60"
(66.0 mm)

2-13/32"
(61.1 mm)

R63-11

#14 - 1-3/4"
(43 mm)

2-3/4"
(69.9 mm)

3.18"
(80.8 mm)

3-1/4"
(82.6 mm)

R63-14

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

3-1/2"
(88.9 mm)

4.04"
(103 mm)

3-1/2"
(88.9 mm)

R63-18

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

4"
(102 mm)

4.62"
(117 mm)

4"
(102 mm)

R63-20

#24 - 3" *
(76 mm)

4-1/2"
(114 mm)

O.D. 5"
(127 mm)

5"
(127 mm)

R64-24

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

5-1/2"
(140 mm)

O.D. 6"
(152 mm)

6"
(142 mm)

R64-28

* Rounded collar Nut

R62 Stop-Type Couplings - ASTM A108 or A576
Stop Type Coupling
Nominal
Bar
Diameter
Outside
Diameter
Overall
Length
Part
Number
#6 - 3/4"
(19 mm)
1-1/4"
(31.8 mm)
3-1/2"
(88.9 mm)
R62-06
#7 - 7/8"
(22 mm)

1-3/8"
(34.9 mm)

4"
(102 mm)

R62-07

#8 - 1"
(25 mm)

1-5/8"
(41.3 mm)

4-1/2"
(114 mm)

R62-08

#9 - 1-1/8"
(29 mm)

1-7/8"
(47.7 mm)

5"
(127 mm)

R62-09

#10 - 1-1/4"
(32 mm)

2"
(50.8 mm)

5-1/2"
(140 mm)

R62-10

#11 - 1-3/8"
(36 mm)

2-1/4"
(57.2 mm)

6"
(152 mm)

R62-11

#14 - 1-3/4"
(43 mm)

2-7/8"
(73.0 mm)

7-7/8"
(200 mm)

R62-14

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

3-1/2"
(88.9 mm)

9-1/8"
(232 mm)

R62-18

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

4"
(102 mm)

9-1/2"
(241 mm)

R62-20

#24 - 3"
(76 mm)

5"
(127 mm)

11-1/4"
(286 mm)

R62-24

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

5-1/2"
(140 mm)

12"
(305 mm)

R62-28

R9F Hardened Washers - ASTM F436
Hardened Washer
Nominal
Bar
Diameter
Outside
Diameter
Inside
Diamter
Thickness
Part
Number
#6 - 3/4"
(19 mm)
1-3/4"
(44.5 mm)
15/16"
(23.8 mm)
5/32"
(3.97 mm)
R9F-07-436
#7 - 7/8"
(22 mm)

2"
(50.8 mm)

1-1/8"
(28.6 mm)

5/32"
(3.97 mm)

R9F-08-436

#8 - 1"
(25 mm)

2-1/4"
(57.2 mm)

1-1/4"
(31.8 mm)

5/32"
(3.97 mm)

R9F-09-436

#9 - 1-1/8"
(29 mm)

2-1/4"
(5.27 mm)

1-1/4"
(31.8 mm)

5/32"
(3.97 mm)

R9F-09-436

#10 - 1-1/4"
(32 mm)

2-1/2"
(63.5 mm)

1-3/8"
(34.9 mm)

5/32"
(3.97 mm)

R9F-10-436

#11 - 1-3/8"
(36 mm)

3"
(76.2 mm)

1-5/8"
(41.3 mm)

5/32"
(3.97 mm)

R9F-12-436

#14 - 1-3/4"
(43 mm)

3-3/8"
(87.5 mm)

1-7/8"
(47.6 mm)

7/32"
(5.56 mm)

R9F-14-436

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

4-1/2"
(114 mm)

2-5/8"
(66.7 mm)

9/32"
(7.14 mm)

R9F-20-436

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

5"
(127 mm)

2-7/8"
(73.0 mm)

9/32"
(7.14 mm)

R9F-22-436

#24 - 3"
(76 mm)

6"
(142 mm)

3-3/8"
(85.7 mm)

9/32"
(7.14 mm)

R9F-26-436

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

7"
(178 mm)

3-7/8"
(98.4 mm)

9/32"
(7.14 mm)

R9F-30-436

R81 Spherical Washers - ASTM A536
Spherical Washer
Nominal
Bar
Diameter
Thickness Outside
Dome
Part
Number
#6 - 3/4"
(19 mm)
35/64”
(13.9 mm)
2"
(50.8 mm)
R81-0675
#7 - 7/8"
(22 mm)

39/64”
(15.5 mm)

2-1/4"
(57.2 mm)

R81-0775
#8 - 1"
(25 mm)

5/8”
(15.9 mm)

2-1/2"
(63.5 mm)

R81-0875
#9 - 1-1/8"
(29 mm)

3/4”
(19.1 mm)

2-3/4"
(69.9 mm)

R81-0975
#10 - 1-1/4"
(32 mm)

53/64”
(21.0 mm)

3
(76.2 mm)

R81-1075
#11 - 1-3/8"
(36 mm)

29/32”
(23.0 mm)

3-1/4"
(82.5 mm)

R81-1175
#14 - 1-3/4"
(43 mm)

1-7/64”
(28.2 mm)

3-3/4"
(95.3 mm)

R81-1475
#18 - 2-1/4"
(57 mm)

1-13/32”
(35.7 mm)

5"
(127 mm)

R81-1875
#20 - 2-1/2"
(64 mm)

1-1/2”
(38.1 mm)

5-1/4"
(133 mm)

R81-2075
* #24 - 3"
(76 mm)

1-7/8”
(48 mm)

6"
(165 mm)

R81-2475
* #28 - 3-1/2"
(89 mm)

1-1/2”
(38.1 mm)

7"
(178 mm)

R81-2875
Provides up to a 5 degree angle when used with a dished plate.

R63-JN Jam Nuts - ASTM A108
These Jam Nuts can not be substituted for full strength nuts and can't be used on bars other than Williams Grade 75 All-Thread Rebars of the same diameter.
Jam Nut
Nominal
Bar
Diameter
Across
Flats
Overall
Length
Part
Number
#6 - 3/4"
(19 mm)
1-1/4"
(31.8 mm)
13/16"
(20.6 mm)
R63-06JN
#7 - 7/8"
(22 mm)

1-7/16"
(36.5 mm)

7/8"
(22.2 mm)

R63-07JN

#8 - 1"
(25 mm)

1-5/8"
(41.3 mm)

1"
(25.4 mm)

R63-08JN

#9 - 1-1/8"
(29 mm)

1-7/8"
(47.6 mm)

1"
(25.4 mm)

R63-09JN

#10 - 1-1/4"
(32 mm)

2"
(50.8 mm)

1-3/16"
(27.8 mm)

R63-10JN

#11 - 1-3/8"
(36 mm)

2-1/4"
(57.2 mm)

1-1/4"
(31.8 mm)

R63-11JN

#14 - 1-3/4"
(43 mm)

2-3/4"
(69.9 mm)

1-5/8"
(41.3 mm)

R63-14JN

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

3-1/2"
(88.9 mm)

1-3/4"
(44.5 mm)

R63-18JN

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

4"
(102 mm)

2"
(50.8 mm)

R63-20JN

* #24 - 3"
(76 mm)

4-1/2"
(114 mm)

2-1/4"
(57.2 mm)

R64-24JN*

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

5"
(127 mm)

2-1/2"
(63.5 mm)

R64-28JN*

* Round Collar Nut
R8M Beveled Washers - ASTM A47 or ASTM A536
Nominal
Bar
Diameter
Degree
of
Bevel
Outside
Diameter
Inside
Diamter
Maximum
Thickness
Minimum
Thickness
Part
Number
#6 - 3/4"
(19 mm)
2" sq.
(50.8 mm)
1"
(25.4 mm)
17/32"
(13.5 mm)
15/64"
(5.95 mm)
R8M-07
#7 - 7/8"
(22 mm)

2"
(50.8 mm)

1-3/16"
(30.2 mm)

9/16"
(14.3 mm)

1/4"
(6.35 mm)

R8M-09

#8 - 1"
(25 mm)

15°

2-13/16"
(71.4 mm)

1-5/16"
(33.3 mm)

1"
(25.4 mm)

5/16"
(7.94 mm)

R8M-09S

#9 - 1-1/8"
(29 mm)

15°

2-13/16"
(71.4 mm)

1-5/16"
(33.3 mm)

1"
(25.4 mm)

5/16"
(7.94 mm)

R8M-09S

#10 - 1-1/4"
(32 mm)

15°

3-3/8"
(85.7 mm)

1-9/16"
(39.7 mm)

1-15/64"
(43.9 mm)

3/8"
(9.53 mm)

R8M-12S

#11 - 1-3/8"
(36 mm)

15°

3-1/2"
(88.9 mm)

1-3/4"
(44.5 mm)

1-1/4"
(31.8 mm)

3/8"
(9.53 mm)

R8M-13S

#14 - 1-3/4"
(43 mm)

15°

5-1/2"
(140 mm)

2-1/8"
(54.0 mm)

1-5/8"
(41.3 mm)

3/8"
(9.53 mm)

R8M-16S

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

15°

5"
(127 mm)

3"
(76.2 mm)

1-5/8"
(41.3 mm)

19/64"
(7.54 mm)

R8M-18

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

10°

5-1/2"
(140 mm)

3"
(76.2 mm)

1-23/32"
(43.7 mm)

3/4"
(19.1 mm)

R8M-20

* #24 - 3"
(76 mm)

10°

7"
(178 mm)

3-5/8"
(92.1 mm)

2"
(50.8 mm)

3/4"
(19.1 mm)

R8M-24

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

10°

8"
(203 mm)

4-1/4"
(108 mm)

2-19/64"
(58.3 mm)

7/8"
(22.2 mm)

R8M-28

Steel Plates
Round Hole Steel Bearing Plate Dished Hole Steel Bearing Plate Keyhole Steel Bearing Plate Studded Steel Bearing Plate Domed Steel Bearing Plate
S1K - Round R80 - Dished S1K - Keyhole S0K - Studded S2K - Domed
Williams steel bearing plates are standard with a round hole for non-grouted concrete 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.
Williams Form Engineering Corp.
Threaded
Bar Types
Grade 75
Information
Grade 75
Accessories
Case
Histories
Corrosion
Protection
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