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U-Bolts with Mounting Plates
A mounting plate provides a more secure hold at the mounting surface. Stronger than routing clamps and hangers, U-bolts support heavy pipe, tube, and conduit from ceilings, walls, and poles.
Black-oxide steel U-bolts have mild corrosion resistance. Zinc-plated steel U-bolts have good corrosion resistance in most environments. Galvanized steel U-bolts have better corrosion resistance than black-oxide and zinc-plated steel U-bolts. 304 stainless steel U-bolts have excellent corrosion resistance and good chemical resistance.
U-bolts with four nuts allow you to secure the U-bolt from the top and the bottom.
For technical drawings and 3-D models, click on a part number.
ID | Mounting Plate | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Inch | Metric, mm | For Pipe Size  | Ht. | Thread Lg. | Capacity, lbs. | Ctr.-to-Ctr. | No. Included | Material | Lg. | Wd. | Thick. | No. of Nuts Included | Each | |
Black-Oxide Steel | ||||||||||||||
1/4"-20 Thread Size | ||||||||||||||
| 9/16" | 14 | 1/4 | 1 1/4" | 3/4" | 425 | 13/16" | 1 | Black-Oxide Steel | 1 7/16" | 3/4" | 3/32" | 2 | 0000000 | 00000 |
| 3/4" | 19 | 3/8 | 1 1/4" | 5/8" | 425 | 1" | 1 | Black-Oxide Steel | 1 5/8" | 3/4" | 3/32" | 2 | 0000000 | 0000 |
| 3/4" | 19 | 3/8 | 2 1/4" | 1 1/2" | 425 | 1" | 1 | Black-Oxide Steel | 1 5/8" | 3/4" | 3/32" | 2 | 0000000 | 0000 |
| 1" | 25 | __ | 1 3/4" | 1" | 425 | 1 1/4" | 1 | Black-Oxide Steel | 1 7/8" | 3/4" | 3/32" | 2 | 0000000 | 0000 |
| 1 1/8" | 29 | 3/4 | 2" | 1" | 425 | 1 3/8" | 1 | Black-Oxide Steel | 2" | 3/4" | 3/32" | 2 | 0000000 | 0000 |
| 1 1/4" | 32 | __ | 2 1/4" | 1 1/4" | 425 | 1 1/2" | 1 | Black-Oxide Steel | 2 1/8" | 3/4" | 3/32" | 2 | 0000000 | 0000 |
| 1 1/2" | 38 | 1 | 2 3/4" | 1 3/8" | 425 | 1 3/4" | 1 | Black-Oxide Steel | 2 3/8" | 3/4" | 3/32" | 2 | 0000000 | 0000 |
| 1 3/4" | 44 | 1 1/4 | 3" | 1 3/8" | 425 | 2" | 1 | Black-Oxide Steel | 2 5/8" | 3/4" | 3/32" | 2 | 0000000 | 0000 |
| 2" | 51 | 1 1/2 | 3 1/4" | 1 3/8" | 425 | 2 1/4" | 1 | Black-Oxide Steel | 2 7/8" | 3/4" | 3/32" | 2 | 0000000 | 0000 |
5/16"-18 Thread Size | ||||||||||||||
| 1" | 25 | __ | 2 3/16" | 1 3/8" | 600 | 1 5/16" | 1 | Black-Oxide Steel | 2 1/16" | 3/4" | 3/32" | 2 | 0000000 | 0000 |
| 1 3/8" | 35 | 1 | 2 3/16" | 1" | 600 | 1 11/16" | 1 | Black-Oxide Steel | 2 7/16" | 3/4" | 3/32" | 2 | 0000000 | 0000 |
| 1 1/2" | 38 | 1 | 2 3/16" | 1" | 600 | 1 13/16" | 1 | Black-Oxide Steel | 2 9/16" | 3/4" | 3/32" | 2 | 0000000 | 0000 |
| 1 3/4" | 44 | 1 1/4 | 2 11/16" | 1 1/8" | 600 | 2 1/16" | 1 | Black-Oxide Steel | 2 13/16" | 3/4" | 3/32" | 2 | 0000000 | 0000 |
| 2" | 51 | 1 1/2 | 2 11/16" | 1" | 600 | 2 5/16" | 1 | Black-Oxide Steel | 3 1/16" | 3/4" | 3/32" | 2 | 0000000 | 0000 |
| 2 1/2" | 64 | 2 | 3 3/16" | 1" | 600 | 2 13/16" | 1 | Black-Oxide Steel | 3 9/16" | 3/4" | 3/32" | 2 | 0000000 | 0000 |
| 3" | 76 | 2 1/2 | 3 11/16" | 1" | 600 | 3 5/16" | 1 | Black-Oxide Steel | 4 1/16" | 3/4" | 3/32" | 2 | 0000000 | 0000 |
3/8"-16 Thread Size | ||||||||||||||
| 1" | 25 | __ | 2 1/4" | 1 1/4" | 1,075 | 1 3/8" | 1 | Black-Oxide Steel | 2 1/4" | 1" | 1/8" | 2 | 0000000 | 0000 |
| 1 1/4" | 32 | __ | 2 1/4" | 1 1/4" | 1,075 | 1 5/8" | 1 | Black-Oxide Steel | 2 1/2" | 1" | 1/8" | 2 | 0000000 | 0000 |
| 1 1/2" | 38 | 1 | 2 1/2" | 1 1/4" | 1,075 | 1 7/8" | 1 | Black-Oxide Steel | 2 3/4" | 1" | 1/8" | 2 | 0000000 | 0000 |
| 1 3/4" | 44 | 1 1/4 | 2 3/4" | 1 1/8" | 1,075 | 2 1/8" | 1 | Black-Oxide Steel | 3" | 1" | 1/8" | 2 | 0000000 | 0000 |
| 2" | 51 | 1 1/2 | 2 5/8" | 1 1/4" | 1,075 | 2 3/8" | 1 | Black-Oxide Steel | 3 1/4" | 1" | 1/8" | 2 | 0000000 | 0000 |
| 2 1/2" | 64 | 2 | 3 1/8" | 1 1/4" | 1,075 | 2 7/8" | 1 | Black-Oxide Steel | 3 3/4" | 1" | 1/8" | 2 | 0000000 | 0000 |
| 3" | 76 | 2 1/2 | 3 5/8" | 1 1/4" | 1,075 | 3 3/8" | 1 | Black-Oxide Steel | 4 1/4" | 1" | 1/8" | 2 | 0000000 | 0000 |
| 3 1/2" | 89 | 3 | 4 1/8" | 1 1/4" | 1,075 | 3 7/8" | 1 | Black-Oxide Steel | 4 3/4" | 1" | 1/8" | 2 | 0000000 | 0000 |
1/2"-13 Thread Size | ||||||||||||||
| 3" | 76 | 2 1/2 | 4 1/2" | 1 5/8" | 2,000 | 3 1/2" | 1 | Black-Oxide Steel | 4 5/8" | 1" | 1/8" | 2 | 0000000 | 0000 |
| 3 1/2" | 89 | 3 | 5" | 1 1/2" | 2,000 | 4" | 1 | Black-Oxide Steel | 5 1/8" | 1" | 1/8" | 2 | 0000000 | 0000 |
| 4" | 102 | 3 1/2 | 5 1/2" | 1 1/2" | 2,000 | 4 1/2" | 1 | Black-Oxide Steel | 5 5/8" | 1" | 1/8" | 2 | 0000000 | 0000 |
| 4 1/2" | 114 | 4 | 6" | 1 1/2" | 2,000 | 5" | 1 | Black-Oxide Steel | 6 1/8" | 1" | 1/8" | 2 | 0000000 | 0000 |
Zinc-Plated Steel | ||||||||||||||
1/4"-20 Thread Size | ||||||||||||||
| 9/16" | 14 | 1/4 | 1 1/4" | 3/4" | 425 | 13/16" | 1 | Zinc-Plated Steel | 1 7/16" | 3/4" | 3/32" | 2 | 00000000 | 000 |
| 3/4" | 19 | 3/8 | 1 1/4" | 5/8" | 425 | 1" | 1 | Zinc-Plated Steel | 1 5/8" | 3/4" | 3/32" | 2 | 00000000 | 000 |
| 3/4" | 19 | 3/8 | 2 1/4" | 1 1/2" | 425 | 1" | 1 | Zinc-Plated Steel | 1 5/8" | 3/4" | 3/32" | 2 | 00000000 | 000 |
| 1" | 25 | __ | 1 3/4" | 1" | 425 | 1 1/4" | 1 | Zinc-Plated Steel | 1 7/8" | 3/4" | 3/32" | 2 | 00000000 | 000 |
| 1 1/8" | 29 | 3/4 | 2" | 1" | 425 | 1 3/8" | 1 | Zinc-Plated Steel | 2" | 3/4" | 3/32" | 2 | 00000000 | 000 |
| 1 1/4" | 32 | __ | 2 1/4" | 1 1/4" | 425 | 1 1/2" | 1 | Zinc-Plated Steel | 2 1/8" | 3/4" | 3/32" | 2 | 00000000 | 0000 |
| 1 1/2" | 38 | 1 | 2 3/4" | 1 3/8" | 425 | 1 3/4" | 1 | Zinc-Plated Steel | 2 3/8" | 3/4" | 3/32" | 2 | 00000000 | 0000 |
| 1 3/4" | 44 | 1 1/4 | 3" | 1 3/8" | 425 | 2" | 1 | Zinc-Plated Steel | 2 5/8" | 3/4" | 3/32" | 2 | 00000000 | 0000 |
| 2" | 51 | 1 1/2 | 3 1/4" | 1 3/8" | 425 | 2 1/4" | 1 | Zinc-Plated Steel | 2 7/8" | 3/4" | 3/32" | 2 | 00000000 | 0000 |
5/16"-18 Thread Size | ||||||||||||||
| 1" | 25 | __ | 2 3/16" | 1 3/8" | 600 | 1 5/16" | 1 | Zinc-Plated Steel | 2 1/16" | 3/4" | 3/32" | 2 | 00000000 | 0000 |
| 1 3/8" | 35 | 1 | 2 3/16" | 1" | 600 | 1 11/16" | 1 | Zinc-Plated Steel | 2 7/16" | 3/4" | 3/32" | 2 | 00000000 | 0000 |
| 1 1/2" | 38 | 1 | 2 3/16" | 1" | 600 | 1 13/16" | 1 | Zinc-Plated Steel | 2 9/16" | 3/4" | 3/32" | 2 | 00000000 | 0000 |
| 1 3/4" | 44 | 1 1/4 | 2 11/16" | 1 1/8" | 600 | 2 1/16" | 1 | Zinc-Plated Steel | 2 13/16" | 3/4" | 3/32" | 2 | 00000000 | 0000 |
| 2" | 51 | 1 1/2 | 2 11/16" | 1" | 600 | 2 5/16" | 1 | Zinc-Plated Steel | 3 1/16" | 3/4" | 3/32" | 2 | 00000000 | 0000 |
| 2 1/2" | 64 | 2 | 3 3/16" | 1" | 600 | 2 13/16" | 1 | Zinc-Plated Steel | 3 9/16" | 3/4" | 3/32" | 2 | 00000000 | 0000 |
| 3" | 76 | 2 1/2 | 3 11/16" | 1" | 600 | 3 5/16" | 1 | Zinc-Plated Steel | 4 1/16" | 3/4" | 3/32" | 2 | 00000000 | 0000 |
3/8"-16 Thread Size | ||||||||||||||
| 1" | 25 | __ | 2 1/4" | 1 1/4" | 1,075 | 1 3/8" | 1 | Zinc-Plated Steel | 2 1/4" | 1" | 1/8" | 2 | 0000000 | 0000 |
| 1 1/4" | 32 | __ | 2 1/4" | 1 1/4" | 1,075 | 1 5/8" | 1 | Zinc-Plated Steel | 2 1/2" | 1" | 1/8" | 2 | 0000000 | 0000 |
| 1 1/2" | 38 | 1 | 2 1/2" | 1 1/4" | 1,075 | 1 7/8" | 1 | Zinc-Plated Steel | 2 3/4" | 1" | 1/8" | 2 | 0000000 | 0000 |
| 1 3/4" | 44 | 1 1/4 | 2 3/4" | 1 1/8" | 1,075 | 2 1/8" | 1 | Zinc-Plated Steel | 3" | 1" | 1/8" | 2 | 0000000 | 0000 |
| 2" | 51 | 1 1/2 | 2 5/8" | 1 1/4" | 1,075 | 2 3/8" | 1 | Zinc-Plated Steel | 3 1/4" | 1" | 1/8" | 2 | 0000000 | 0000 |
| 2 1/2" | 64 | 2 | 3 1/8" | 1 1/4" | 1,075 | 2 7/8" | 1 | Zinc-Plated Steel | 3 3/4" | 1" | 1/8" | 2 | 0000000 | 0000 |
| 3" | 76 | 2 1/2 | 3 5/8" | 1 1/4" | 1,075 | 3 3/8" | 1 | Zinc-Plated Steel | 4 1/4" | 1" | 1/8" | 2 | 0000000 | 0000 |
| 3 1/2" | 89 | 3 | 4 1/8" | 1 1/4" | 1,075 | 3 7/8" | 1 | Zinc-Plated Steel | 4 3/4" | 1" | 1/8" | 2 | 0000000 | 0000 |
1/2"-13 Thread Size | ||||||||||||||
| 2 15/16" | 75 | 2 1/2 | 5 1/4" | 3" | 2,000 | 3 7/16" | 1 | Zinc-Plated Steel | 4 9/16" | 1" | 1/8" | 2 | 0000000 | 0000 |
| 3" | 76 | 2 1/2 | 4 1/2" | 1 5/8" | 2,000 | 3 1/2" | 1 | Zinc-Plated Steel | 4 5/8" | 1" | 1/8" | 2 | 0000000 | 0000 |
| 3 1/2" | 89 | 3 | 5" | 1 1/2" | 2,000 | 4" | 1 | Zinc-Plated Steel | 5 1/8" | 1" | 1/8" | 2 | 0000000 | 0000 |
| 3 9/16" | 90 | 3 | 5 3/4" | 3" | 2,000 | 4 1/16" | 1 | Zinc-Plated Steel | 5 3/16" | 1" | 1/8" | 2 | 0000000 | 0000 |
| 4" | 102 | 3 1/2 | 5 1/2" | 1 1/2" | 2,000 | 4 1/2" | 1 | Zinc-Plated Steel | 5 5/8" | 1" | 1/8" | 2 | 0000000 | 0000 |
| 4 1/16" | 103 | 3 1/2 | 6 1/4" | 3" | 2,000 | 4 9/16" | 1 | Zinc-Plated Steel | 5 11/16" | 1" | 1/8" | 2 | 0000000 | 0000 |
| 4 1/2" | 114 | 4 | 6" | 1 1/2" | 2,000 | 5" | 1 | Zinc-Plated Steel | 6 1/8" | 1" | 1/8" | 2 | 0000000 | 0000 |
| 4 9/16" | 116 | 4 | 6 3/4" | 3" | 2,000 | 5 1/16" | 1 | Zinc-Plated Steel | 6 3/16" | 1" | 1/8" | 2 | 0000000 | 0000 |
Galvanized Steel | ||||||||||||||
1/4"-20 Thread Size | ||||||||||||||
| 9/16" | 14 | 1/4 | 1 1/4" | 3/4" | 425 | 13/16" | 1 | Galvanized Steel | 1 7/16" | 3/4" | 3/32" | 2 | 0000000 | 0000 |
| 3/4" | 19 | 3/8 | 1 1/4" | 5/8" | 425 | 1" | 1 | Galvanized Steel | 1 5/8" | 3/4" | 3/32" | 2 | 0000000 | 0000 |
| 3/4" | 19 | 3/8 | 2 1/4" | 1 1/2" | 425 | 1" | 1 | Galvanized Steel | 1 5/8" | 3/4" | 3/32" | 2 | 0000000 | 0000 |
| 1" | 25 | __ | 1 3/4" | 1" | 425 | 1 1/4" | 1 | Galvanized Steel | 1 7/8" | 3/4" | 3/32" | 2 | 0000000 | 0000 |
| 1 1/8" | 29 | 3/4 | 2" | 1" | 425 | 1 3/8" | 1 | Galvanized Steel | 2" | 3/4" | 3/32" | 2 | 0000000 | 0000 |
| 1 1/4" | 32 | __ | 2 1/4" | 1 1/4" | 425 | 1 1/2" | 1 | Galvanized Steel | 2 1/8" | 3/4" | 3/32" | 2 | 0000000 | 0000 |
| 1 1/2" | 38 | 1 | 2 3/4" | 1 3/8" | 425 | 1 3/4" | 1 | Galvanized Steel | 2 3/8" | 3/4" | 3/32" | 2 | 0000000 | 0000 |
| 1 3/4" | 44 | 1 1/4 | 3" | 1 3/8" | 425 | 2" | 1 | Galvanized Steel | 2 5/8" | 3/4" | 3/32" | 2 | 0000000 | 0000 |
| 2" | 51 | 1 1/2 | 3 1/4" | 1 3/8" | 425 | 2 1/4" | 1 | Galvanized Steel | 2 7/8" | 3/4" | 3/32" | 2 | 0000000 | 0000 |
5/16"-18 Thread Size | ||||||||||||||
| 1" | 25 | __ | 2 3/16" | 1 3/8" | 600 | 1 5/16" | 1 | Galvanized Steel | 2 1/16" | 3/4" | 3/32" | 2 | 0000000 | 0000 |
| 1 1/2" | 38 | 1 | 2 3/16" | 1" | 600 | 1 13/16" | 1 | Galvanized Steel | 2 9/16" | 3/4" | 3/32" | 2 | 0000000 | 0000 |
| 1 3/4" | 44 | 1 1/4 | 2 11/16" | 1 1/8" | 600 | 2 1/16" | 1 | Galvanized Steel | 2 13/16" | 3/4" | 3/32" | 2 | 0000000 | 0000 |
| 2" | 51 | 1 1/2 | 2 11/16" | 1" | 600 | 2 5/16" | 1 | Galvanized Steel | 3 1/16" | 3/4" | 3/32" | 2 | 0000000 | 0000 |
| 2 1/2" | 64 | 2 | 3 3/16" | 1" | 600 | 2 13/16" | 1 | Galvanized Steel | 3 9/16" | 3/4" | 3/32" | 2 | 0000000 | 0000 |
| 3" | 76 | 2 1/2 | 3 11/16" | 1" | 600 | 3 5/16" | 1 | Galvanized Steel | 4 1/16" | 3/4" | 3/32" | 2 | 0000000 | 0000 |