Selecting U-Bolts Using Pipe, Conduit, or Tubing Trade Size
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U-Bolt Mounting Plates
Add a mounting plate to your U-bolt for a more secure hold at the mounting surface.
Black-oxide steel mounting plates have mild corrosion resistance. Zinc-plated steel mounting plates have good corrosion resistance in most environments. Galvanized steel mounting plates have better corrosion resistance than black-oxide and zinc-plated steel mounting plates. Aluminum mounting plates are lighter weight and more corrosion resistant than steel mounting plates, but aren't as strong. 304 stainless steel mounting plates have excellent corrosion resistance and good chemical resistance. 316 stainless steel mounting plates have excellent corrosion and chemical resistance.
For technical drawings and 3-D models, click on a part number.
| For U-Bolt ID | Lg. | Wd. | Thick. | Ctr.-to-Ctr. | Pkg. Qty. | Pkg. | |
For 1/4"-20 Thread Size  | |||||||
|---|---|---|---|---|---|---|---|
| 1 1/4" | 2 1/8" | 3/4" | __ | 1 1/2" | __ | 00000000 | 00 |
For 5/16"-18 Thread Size | |||||||
| 15/16" | 2 1/16" | 3/4" | __ | 1 5/16" | __ | 00000000 | 00 |
| 1 1/8" | 2 3/16" | 3/4" | __ | 1 7/16" | __ | 00000000 | 00 |
| 1 7/16" | 2 7/16" | 3/4" | __ | 1 11/16" | __ | 00000000 | 00 |
| 1 3/4" | 2 13/16" | 3/4" | 3/32" | 2 1/16" | __ | 00000000 | 00 |
| 2" | 3 1/16" | 3/4" | 3/32" | 2 5/16" | __ | 00000000 | 00 |
For 3/8"-16 Thread Size | |||||||
| 3 5/8" | 5 1/8" | 1" | __ | 4" | __ | 00000000 | 00 |
| 4 1/8" | 5 5/8" | 1" | __ | 4 1/2" | __ | 00000000 | 00 |
| 4 5/8" | 6 1/8" | 1" | __ | 5" | __ | 00000000 | 00 |
For 1/2"-13 Thread Size | |||||||
| 5 5/8" | __ | 1" | __ | 6 1/8" | __ | 00000000 | 00 |
| 5 5/8" | __ | 1" | __ | 6 1/8" | __ | 00000000 | 00 |
| 6 3/4" | 8 3/8" | 1" | __ | 7 1/4" | __ | 00000000 | 00 |
| 8 3/4" | 10 3/8" | 1" | __ | 9 1/4" | __ | 00000000 | 00 |
For 5/8"-11 Thread Size | |||||||
| 6 3/4" | 9 3/8" | __ | 1/8" | 7 3/8" | __ | 00000000 | 00 |
| 8 3/4" | 10 3/8" | __ | 1/8" | 9 3/8" | __ | 00000000 | 00 |
For 3/4"-10 Thread Size | |||||||
| 10 7/8" | 13 1/4" | __ | 1/4" | 11 5/8" | __ | 00000000 | 00 |
For 7/8"-9 Thread Size | |||||||
| 12 7/8" | 15 5/8" | 2 1/2" | 1/4" | 13 1/4" | __ | 00000000 | 00 |
| 14 1/8" | 16 7/8" | 2 1/2" | 1/4" | 15" | __ | 00000000 | 00 |
| 16 1/8" | 18 7/8" | 2 1/2" | 1/4" | 17" | __ | 00000000 | 00 |
Steel | |||||||
| 7/8" | 1 3/4" | 3/4" | 3/32" | 1 1/8" | 5 | 00000000 | 00000 |
| 1 1/8" | 2" | 3/4" | 3/32" | 1 3/8" | 5 | 00000000 | 0000 |
| 1 3/8" | 2 1/4" | 3/4" | 3/32" | 1 5/8" | 5 | 00000000 | 0000 |
| 15/16" | 2 9/16" | 1" | 1/8" | 1 5/16" | 5 | 00000000 | 0000 |
| 1 1/8" | 2 3/8" | 1" | 1/8" | 1 1/2" | 5 | 00000000 | 0000 |
| 1 3/8" | 2 5/8" | 1" | 1/8" | 1 3/4" | 5 | 00000000 | 0000 |
| 1 11/16" | 2 15/16" | 1" | 1/8" | 2 1/16" | 5 | 00000000 | 0000 |
| 2" | 3 1/4" | 1" | 1/8" | 2 3/8" | 5 | 00000000 | 0000 |
| 2 7/16" | 3 11/16" | 1" | 1/8" | 2 13/16" | 5 | 00000000 | 0000 |
| 2 15/16" | 4 9/16" | 1" | 1/8" | 3 7/16" | 5 | 00000000 | 0000 |
| 3 9/16" | 5 3/16" | 1" | 1/8" | 4 1/16" | 5 | 00000000 | 0000 |
| 4 1/16" | 5 11/16" | 1" | 1/8" | 4 9/16" | 5 | 00000000 | 0000 |
| 4 9/16" | 6 3/16" | 1" | 1/8" | 5 1/16" | 5 | 00000000 | 0000 |
Black-Oxide Steel | |||||||
| 9/16" | 1 7/16" | 3/4" | 3/32" | 13/16" | 5 | 00000000 | 0000 |
| 3/4" | 1 5/8" | 3/4" | 3/32" | 1" | 5 | 00000000 | 0000 |
| 1" | 1 7/8" | 3/4" | 3/32" | 1 1/4" | 5 | 00000000 | 0000 |
| 1 1/8" | 2" | 3/4" | 3/32" | 1 3/8" | 5 | 00000000 | 0000 |
| 1 1/4" | 2 1/8" | 3/4" | 1/16" | 1 1/2" | 5 | 00000000 | 0000 |
| 1 1/2" | 2 3/8" | 3/4" | 3/32" | 1 3/4" | 5 | 00000000 | 0000 |
| 1 3/4" | 2 5/8" | 3/4" | 3/32" | 2" | 5 | 00000000 | 0000 |
| 2" | 2 7/8" | 3/4" | 3/32" | 2 1/4" | 5 | 00000000 | 0000 |
| 1" | 2 1/16" | 3/4" | 3/32" | 1 5/16" | 5 | 00000000 | 0000 |
| 1 3/8" | 2 7/16" | 3/4" | 3/32" | 1 11/16" | 5 | 00000000 | 0000 |
| 1 1/2" | 2 9/16" | 3/4" | 1/16" | 1 13/16" | 5 | 00000000 | 0000 |
| 1 3/4" | 2 13/16" | 3/4" | 3/32" | 2 1/16" | 5 | 00000000 | 0000 |
| 2" | 3 1/16" | 3/4" | 3/32" | 2 5/16" | 5 | 00000000 | 0000 |
| 2 1/2" | 3 9/16" | 3/4" | 3/32" | 2 13/16" | 5 | 00000000 | 0000 |
| 3" | 4 1/16" | 3/4" | 3/32" | 3 5/16" | 5 | 00000000 | 0000 |
| 1" | 2 1/4" | 1" | 1/8" | 1 3/8" | 5 | 00000000 | 0000 |
| 1 1/4" | 2 1/2" | 1" | 1/8" | 1 5/8" | 5 | 00000000 | 0000 |
| 1 1/2" | 2 3/4" | 1" | 1/8" | 1 7/8" | 5 | 00000000 | 0000 |
| 1 3/4" | 3" | 1" | 1/8" | 2 1/8" | 5 | 00000000 | 0000 |
| 2" | 3 1/4" | 1" | 1/8" | 2 3/8" | 5 | 00000000 | 0000 |
| 2 1/2" | 3 3/4" | 1" | 1/8" | 2 7/8" | 5 | 00000000 | 0000 |
| 3" | 4 1/4" | 1" | 1/8" | 3 3/8" | 5 | 00000000 | 0000 |
| 3 1/2" | 4 3/4" | 1" | 1/8" | 3 7/8" | 5 | 00000000 | 0000 |
| 3" | 4 5/8" | 1" | 1/8" | 3 1/2" | 5 | 00000000 | 0000 |
| 3 1/2" | 5 1/8" | 1" | 1/8" | 4" | 1 | 00000000 | 0000 |
| 4" | 5 5/8" | 1" | 1/8" | 4 1/2" | 1 | 00000000 | 0000 |
| 4 1/2" | 6 1/8" | 1" | 1/8" | 5" | 1 | 00000000 | 0000 |
| 5 5/8" | 7 1/4" | 1" | 3/32" | 6 1/8" | 1 | 00000000 | 0000 |
| 6 3/4" | 8 3/8" | 1" | 3/32" | 7 1/4" | 1 | 00000000 | 0000 |
| 8 3/4" | 10 3/8" | 1" | 3/32" | 9 1/4" | 1 | 00000000 | 0000 |
| 6 3/4" | 9 3/8" | 1 1/4" | 1/8" | 7 3/8" | 1 | 00000000 | 0000 |
| 8 3/4" | 10 3/8" | 1 1/4" | 1/8" | 9 3/8" | 1 | 00000000 | 00000 |
| 10 7/8" | 13 1/4" | 2 1/2" | 1/4" | 11 5/8" | 1 | 00000000 | 00000 |
| 12 7/8" | 15 5/8" | 2 1/2" | 1/4" | 13 1/4" | 1 | 00000000 | 00000 |
| 14 1/8" | 16 7/8" | 2 1/2" | 1/4" | 15" | 1 | 00000000 | 00000 |
| 16 1/8" | 18 7/8" | 2 1/2" | 1/4" | 17" | 1 | 00000000 | 00000 |
For 1"-8 Thread Size | |||||||
| 18 1/8" | 21 1/4" | 2 1/2" | 1/4" | 19 1/8" | 1 | 00000000 | 00000 |
Zinc-Plated Steel | |||||||
| 9/16" | 1 7/16" | 3/4" | 3/32" | 13/16" | 5 | 00000000 | 0000 |
| 3/4" | 1 5/8" | 3/4" | 3/32" | 1" | 5 | 00000000 | 0000 |
| 7/8" | 1 3/4" | 3/4" | 3/32" | 1 1/8" | 5 | 0000000 | 0000 |
| 1" | 1 7/8" | 3/4" | 3/32" | 1 1/4" | 5 | 00000000 | 0000 |
| 1 1/8" | 2" | 3/4" | 3/32" | 1 3/8" | 5 | 00000000 | 0000 |
| 1 1/4" | 2 1/8" | 3/4" | 3/32" | 1 1/2" | 5 | 0000000 | 0000 |
| 1 3/8" | 2 9/16" | 3/4" | 3/32" | 1 5/8" | 5 | 0000000 | 0000 |
| 1 1/2" | 2 3/8" | 3/4" | 3/32" | 1 3/4" | 5 | 00000000 | 0000 |