Submittal Sheet

Threaded Accessories
B3188 - Standard U-Bolt with 4 Hex Nuts (TOLCO Fig. 110)
B3188C - Standard Plastic Coated U-Bolt
Size Range: Size
1
/2" (15mm) thru 30" (900mm) pipe
Material: Steel
Function: Recommended for support, anchor or guide of pipe.
Approvals: Underwriters Laboratories Listed
3
/4" (20mm) thru 12" (300mm).
Conforms to Federal Specification WW-H-171E & A-A-1192A, Type 24
and Manufacturers Standardization Society ANSI/MSS SP-69 & SP-58,
Type 24.
Maximum Temperature: 750°F
(399°C)
Finish: Plain or Electro-Galvanized. Contact B-Line for alternative finishes
and materials.
Order By: Figure number and finish. U-bolt can be furnished with longer
tangents “D” or with longer threads “E”. Consult factory.
Note: When furnished in Hot-Dip Galvanized finish, oversize
tapped hex nuts must be used.
B3188NS - Non-standard (NS) U-bolts are
available upon request. Specify dimensions
other than standard. B3188DI - For ductile
iron pipe.
TL
Thread Length
A
Thread Size
B
E
TL
Design
Load 2
Design
Load 3
Design
Load 1
D
C
Hex Nuts Included
Pipe Size Thread Size Thread Length TL B
Part No.
in. (mm) in. (mm) in. (mm)
B3188-
1
/2
1
/2" (15)
1
/4"-20 2
1
/8" (54.0)
15
/16" (23.8)
B3188-
3
/4
3
/4" (20)
1
/4"-20 2
1
/8" (54.0) 1
1
/8" (28.6)
B3188-1 1" (25)
1
/4"-20 2
1
/8" (54.0) 1
3
/8" (34.9)
B3188-1
1
/4 1
1
/4" (32)
3
/8"-16 2
1
/8" (54.0) 1
11
/16" (42.9)
B3188-1
1
/2 1
1
/2" (40)
3
/8"-16 2
1
/2" (63.5) 2" (50.8)
B3188-2 2" (50)
3
/8"-16 2
1
/2" (63.5) 2
7
/16" (61.9)
B3188-2
1
/2 2
1
/2" (65)
1
/2"-13 3" (76.2) 2
15
/16" (74.6)
B3188-3 3" (80)
1
/2"-13 3" (76.2) 3
9
/16" (90.5)
B3188-3
1
/2 3
1
/2" (90)
1
/2"-13 3" (76.2) 4
1
/16" (103.2)
B3188-4 4" (100)
1
/2"-13 3" (76.2) 4
9
/16" (115.9)
B3188-5 5" (125)
1
/2"-13 3" (76.2) 5
21
/32" (143.6)
B3188-6 6" (150)
5
/8"-11 3
3
/4" (95.2) 6
3
/4" (171.4)
B3188-8 8" (200)
5
/8"-11 3
3
/4" (95.2) 8
3
/4 " (222.2)
B3188-10 10" (250)
3
/4"-10 4" (101.6) 10
7
/8" (276.2)
B3188-12 12" (300)
7
/8"-9 4
1
/4" (107.9) 12
7
/8" (327.0)
B3188-14 14" (350)
7
/8"-9 4
1
/4" (107.9) 14
1
/8" (358.8)
B3188C
Plastic Coated
For larger sizes consult full line pipe hanger catalog.
All dimensions in charts and on drawings are in inches. Dimensions shown in parentheses are in millimeters unless otherwise specified.
Threaded Accessories
Fire Protection Solutions
92