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. Contact B-Line for alternative finishes and materials.
Order By: Part 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)
B3188-16 16" (400)
7
/8"-9 4
1
/4" (107.9) 16
1
/8" (409.6)
B3188-18 18" (450) 1"-8 4
3
/4" (120.6) 18
1
/8" (460.4)
B3188-20 20" (500) 1"-8 4
3
/4" (120.6) 20
1
/8" (511.2)
B3188-24 24" (600) 1"-8 4
3
/4" (120.6) 24
1
/8" (612.8)
B3188-30 30" (750) 1"-8 4
3
/4" (120.6) 30
1
/8" (765.2)
B3188C
Plastic Coated
All dimensions in charts and on drawings are in inches. Dimensions shown in parentheses are in millimeters unless otherwise specified.
Threaded Accessories
Pipe Hangers & Supports
231