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Finish Finish |
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Center-to-Center Center-to-Center |
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Includes Mounting Plate Includes Mounting Plate |
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 | Threaded |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement)  |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Selecting U-Bolts Using Pipe, Conduit, or Tubing Trade Size
More
U-Bolts
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. Aluminum U-bolts are lighter weight and more corrosion resistant than steel U-bolts, but aren't as strong. 304 stainless steel U-bolts have excellent corrosion resistance and good chemical resistance. 316 stainless steel U-bolts have excellent corrosion and 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.
U-Bolts | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID | Mounting Plates | ||||||||||||
| Inch | Metric, mm | For Pipe Size | Ht. | Thread Lg. | Capacity, lbs. | Ctr.-to-Ctr. | No. of Nuts Included | Pkg. Qty. | Pkg. | Pkg. Qty. | Pkg. | ||
Steel | |||||||||||||
1/4"-20 Thread Size | |||||||||||||
| 7/8" | 22 | 1/2 | 2 15/16" | 2 1/2" | 425 | 1 1/8" | 4 | 5 | 00000000 | 00000 | 5 | 00000000 | 00000 |
| 1 1/8" | 29 | 3/4 | 3 3/16" | 2 1/2" | 425 | 1 3/8" | 4 | 5 | 00000000 | 0000 | 5 | 00000000 | 0000 |
| 1 3/8" | 35 | 1 | 3 7/16" | 2 1/2" | 425 | 1 5/8" | 4 | 5 | 00000000 | 0000 | 5 | 00000000 | 0000 |
5/16"-18 Thread Size | |||||||||||||
| 15/16" | 24 | 1/2 | 2 7/16" | 1 1/2" | 600 | 1 1/4" | 4 | 1 | 0000000 | 0000 | __ | 000000 | 00 |
| 1 1/8" | 29 | 3/4 | 2 3/4" | 1 1/2" | 600 | 1 7/16" | 4 | 1 | 0000000 | 0000 | __ | 000000 | 00 |
| 1 7/16" | 37 | 1 | 3 1/16" | 1 1/2" | 600 | 1 3/4" | 4 | 1 | 0000000 | 0000 | __ | 000000 | 00 |
| 1 3/4" | 44 | 1 1/4 | 3 3/16" | 1 1/2" | 600 | 2 1/16" | 4 | 1 | 0000000 | 0000 | __ | 000000 | 00 |
| 2" | 51 | 1 1/2 | 3 1/2" | 1 1/2" | 600 | 2 5/16" | 4 | 1 | 0000000 | 0000 | __ | 000000 | 00 |
3/8"-16 Thread Size | |||||||||||||
| 15/16" | 24 | 1/2 | 3" | 2 3/8" | 1,075 | 1 5/16" | 4 | 1 | 00000000 | 0000 | 5 | 00000000 | 0000 |
| 1 1/8" | 29 | 3/4 | 3 5/16" | 2 3/8" | 1,075 | 1 1/2" | 4 | 1 | 00000000 | 0000 | 5 | 00000000 | 0000 |
| 1 3/8" | 35 | 1 | 3 7/16" | 2 3/8" | 1,075 | 1 3/4" | 4 | 1 | 00000000 | 0000 | 5 | 00000000 | 0000 |
| 1 11/16" | 43 | 1 1/4 | 3 3/4" | 2 3/8" | 1,075 | 2 1/16" | 4 | 1 | 00000000 | 0000 | 5 | 00000000 | 0000 |
| 2" | 51 | 1 1/2 | 4" | 2 1/2" | 1,075 | 2 3/8" | 4 | 1 | 00000000 | 0000 | 5 | 00000000 | 0000 |
| 2 7/16" | 62 | 2 | 4 7/16" | 2 1/2" | 1,075 | 2 13/16" | 4 | 1 | 00000000 | 0000 | 5 | 00000000 | 0000 |
| 2 1/2" | 64 | 2 | 4 5/16" | 1 3/4" | 1,075 | 2 7/8" | 4 | 1 | 0000000 | 0000 | __ | 000000 | 00 |
| 3" | 76 | 2 1/2 | 4 13/16" | 1 3/4" | 1,075 | 3 3/8" | 4 | 1 | 0000000 | 0000 | __ | 000000 | 00 |
| 3 5/8" | 92 | 3 | 5 3/8" | 1 3/4" | 1,075 | 4" | 4 | 1 | 0000000 | 0000 | __ | 000000 | 00 |
| 4 1/8" | 105 | 3 1/2 | 5 13/16" | 1 3/4" | 1,075 | 4 1/2" | 4 | 1 | 0000000 | 0000 | __ | 000000 | 00 |
| 4 5/8" | 117 | 4 | 6 1/2" | 1 3/4" | 1,075 | 5" | 4 | 1 | 0000000 | 0000 | __ | 000000 | 00 |
1/2"-13 Thread Size | |||||||||||||
| 2 15/16" | 75 | 2 1/2 | 5 1/4" | 3" | 2,000 | 3 7/16" | 4 | 1 | 0000000 | 0000 | 5 | 00000000 | 0000 |
| 3 9/16" | 90 | 3 | 5 3/4" | 3" | 2,000 | 4 1/16" | 4 | 1 | 0000000 | 0000 | 5 | 00000000 | 0000 |
| 4 1/16" | 103 | 3 1/2 | 6 1/4" | 3" | 2,000 | 4 9/16" | 4 | 1 | 0000000 | 0000 | 5 | 00000000 | 0000 |
| 4 9/16" | 116 | 4 | 6 3/4" | 3" | 2,000 | 5 1/16" | 4 | 1 | 0000000 | 0000 | 5 | 00000000 | 0000 |
| 5 5/8" | 143 | 5 | 7 13/16" | 3" | 2,000 | 6 1/8" | 4 | 1 | 0000000 | 0000 | __ | 000000 | 00 |
Black-Oxide Steel | |||||||||||||
1/4"-20 Thread Size | |||||||||||||
| 9/16" | 14 | 1/4 | 1 1/4" | 3/4" | 425 | 13/16" | 2 | 5 | 0000000 | 0000 | 5 | 00000000 | 0000 |
| 3/4" | 19 | 3/8 | 1 1/4" | 5/8" | 425 | 1" | 2 | 5 | 0000000 | 0000 | 5 | 00000000 | 0000 |
| 3/4" | 19 | 3/8 | 2 1/4" | 1 1/2" | 425 | 1" | 2 | 5 | 0000000 | 0000 | 5 | 00000000 | 0000 |
| 1" | 25 | __ | 1 3/4" | 1" | 425 | 1 1/4" | 2 | 5 | 0000000 | 0000 | 5 | 00000000 | 0000 |
| 1 1/8" | 29 | 3/4 | 2" | 1" | 425 | 1 3/8" | 2 | 5 | 0000000 | 0000 | 5 | 00000000 | 0000 |
| 1 1/4" | 32 | __ | 2 1/4" | 1 1/4" | 425 | 1 1/2" | 2 | 5 | 0000000 | 0000 | 5 | 00000000 | 0000 |
| 1 1/2" | 38 | 1 | 2 3/4" | 1 3/8" | 425 | 1 3/4" | 2 | 5 | 0000000 | 0000 | 5 | 00000000 | 0000 |
| 1 3/4" | 44 | 1 1/4 | 3" | 1 3/8" | 425 | 2" | 2 | 5 | 0000000 | 0000 | 5 | 00000000 | 0000 |
| 2" | 51 | 1 1/2 | 3 1/4" | 1 3/8" | 425 | 2 1/4" | 2 | 5 | 0000000 | 0000 | 5 | 00000000 | 0000 |
5/16"-18 Thread Size | |||||||||||||
| 1" | 25 | __ | 2 3/16" | 1 3/8" | 600 | 1 5/16" | 2 | 5 | 0000000 | 0000 | 5 | 00000000 | 0000 |
| 1 3/8" | 35 | 1 | 2 3/16" | 1" | 600 | 1 11/16" | 2 | 1 | 0000000 | 0000 | 5 | 00000000 | 0000 |
| 1 1/2" | 38 | 1 | 2 3/16" | 1" | 600 | 1 13/16" | 2 | 1 | 0000000 | 0000 | 5 | 00000000 | 0000 |
| 1 3/4" | 44 | 1 1/4 | 2 11/16" | 1 1/8" | 600 | 2 1/16" | 2 | 1 | 0000000 | 0000 | 5 | 00000000 | 0000 |
| 2" | 51 | 1 1/2 | 2 11/16" | 1" | 600 | 2 5/16" | 2 | 1 | 0000000 | 0000 | 5 | 00000000 | 0000 |
| 2 1/2" | 64 | 2 | 3 3/16" | 1" | 600 | 2 13/16" | 2 | 1 | 0000000 | 0000 | 5 | 00000000 | 0000 |
| 3" | 76 | 2 1/2 | 3 11/16" | 1" | 600 | 3 5/16" | 2 | 1 | 0000000 | 0000 | 5 | 00000000 | 0000 |
3/8"-16 Thread Size | |||||||||||||
| 1" | 25 | __ | 2 1/4" | 1 1/4" | 1,075 | 1 3/8" | 2 | 1 | 0000000 | 0000 | 5 | 00000000 | 0000 |
| 1 1/4" | 32 | __ | 2 1/4" | 1 1/4" | 1,075 | 1 5/8" | 2 | 1 | 0000000 | 0000 | 5 | 00000000 | 0000 |
| 1 1/2" | 38 | 1 | 2 1/2" | 1 1/4" | 1,075 | 1 7/8" | 2 | 1 | 0000000 | 0000 | 5 | 00000000 | 0000 |
| 1 3/4" | 44 | 1 1/4 | 2 3/4" | 1 1/8" | 1,075 | 2 1/8" | 2 | 1 | 0000000 | 0000 | 5 | 00000000 | 0000 |
| 2" | 51 | 1 1/2 | 2 5/8" | 1 1/4" | 1,075 | 2 3/8" | 2 | 1 | 0000000 | 0000 | 5 | 00000000 | 0000 |
| 2 1/2" | 64 | 2 | 3 1/8" | 1 1/4" | 1,075 | 2 7/8" | 2 | 1 | 0000000 | 0000 | 5 | 00000000 | 0000 |
| 3" | 76 | 2 1/2 | 3 5/8" | 1 1/4" | 1,075 | 3 3/8" | 2 | 1 | 0000000 | 0000 | 5 | 00000000 | 0000 |
| 3 1/2" | 89 | 3 | 4 1/8" | 1 1/4" | 1,075 | 3 7/8" | 2 | 1 | 0000000 | 0000 | 5 | 00000000 | 0000 |
1/2"-13 Thread Size | |||||||||||||
| 3" | 76 | 2 1/2 | 4 1/2" | 1 5/8" | 2,000 | 3 1/2" | 2 | 1 | 0000000 | 0000 | 5 | 00000000 | 0000 |
| 3 1/2" | 89 | 3 | 5" | 1 1/2" | 2,000 | 4" | 2 | 1 | 0000000 | 0000 | 1 | 00000000 | 0000 |
| 4" | 102 | 3 1/2 | 5 1/2" | 1 1/2" | 2,000 | 4 1/2" | 2 | 1 | 0000000 | 0000 | 1 | 00000000 | 0000 |
| 4 1/2" | 114 | 4 | 6" | 1 1/2" | 2,000 | 5" | 2 | 1 | 0000000 | 0000 | 1 | 00000000 | 0000 |
| 5 5/8" | 143 | 5 | 7 1/4" | 2" | 2,000 | 6 1/8" | 2 | 1 | 0000000 | 0000 | 1 | 00000000 | 0000 |
| 6 3/4" | 171 | 6 | 8 3/8" | 2" | 2,000 | 7 1/4" | 2 | 1 | 0000000 | 0000 | 1 | 00000000 | 0000 |
| 8 3/4" | 222 | 8 | 10 3/8" | 2" | 2,000 | 9 1/4" | 2 | 1 | 0000000 | 00000 | 1 | 00000000 | 0000 |
5/8"-11 Thread Size | |||||||||||||
| 6 3/4" | 171 | 6 | 9 1/2" | 3 3/4" | 3,225 | 7 3/8" | 2 | 1 | 00000000 | 00000 | 1 | 00000000 | 0000 |
| 8 3/4" | 222 | 8 | 11 1/8" | 3 3/4" | 3,225 | 9 3/8" | 2 | 1 | 00000000 | 00000 | 1 | 00000000 | 00000 |
3/4"-10 Thread Size | |||||||||||||
| 10 7/8" | 276 | 10 | 13 13/16" | 4" | 4,825 | 11 5/8" | 2 | 1 | 00000000 | 00000 | 1 | 00000000 | 00000 |
7/8"-9 Thread Size | |||||||||||||
| 12 7/8" | 327 | 12 | 16 1/16" | 4 1/4" | 6,725 | 13 3/4" | 2 | 1 | 00000000 | 00000 | 1 | 00000000 | 00000 |
| 14 1/8" | 359 | 14 | 17 5/16" | 4 1/4" | 6,725 | 15" | 2 | 1 | 00000000 | 00000 | 1 | 00000000 | 00000 |
| 16 1/8" | 410 | 16 | 19 5/16" | 4 1/4" | 6,725 | 17" | 2 | 1 | 00000000 | 00000 | 1 | 00000000 | 00000 |
1"-8 Thread Size | |||||||||||||
| 18 1/8" | 460 | 18 | 21 11/16" | 4 3/4" | 8,850 | 19 1/8" | 2 | 1 | 00000000 | 000000 | 1 | 00000000 | 00000 |
Zinc-Plated Steel | |||||||||||||
1/4"-20 Thread Size | |||||||||||||
| 9/16" | 14 | 1/4 | 1 1/4" | 3/4" | 425 | 13/16" | 2 | 5 | 00000000 | 0000 | 5 | 00000000 | 0000 |
| 3/4" | 19 | 3/8 | 1 1/4" | 5/8" | 425 | 1" | 2 | 5 | 00000000 | 0000 | 5 | 00000000 | 0000 |
| 3/4" | 19 | 3/8 | 2 1/4" | 1 1/2" | 425 | 1" | 2 | 5 | 00000000 | 0000 | 5 | 00000000 | 0000 |
| 7/8" | 22 | 1/2 | 2 15/16" | 2 1/2" | 425 | 1 1/8" | 4 | 1 | 00000000 | 0000 | 5 | 0000000 | 0000 |
| 1" | 25 | __ | 1 3/4" | 1" | 425 | 1 1/4" | 2 | 5 | 00000000 | 0000 | 5 | 00000000 | 0000 |
| 1 1/8" | 29 | 3/4 | 2" | 1" | 425 | 1 3/8" | 2 | 5 | 00000000 | 0000 | 5 | 00000000 | 0000 |
| 1 1/8" | 29 | 3/4 | 3 3/16" | 2 1/2" | 425 | 1 3/8" | 4 | 1 | 00000000 | 0000 | 5 | 00000000 | 0000 |
| 1 1/4" | 32 | __ | 2 1/4" | 1 1/4" | 425 | 1 1/2" | 2 | 5 | 00000000 | 0000 | 5 | 0000000 | 0000 |
| 1 3/8" | 35 | 1 | 3 7/16" | 2 1/2" | 425 | 1 5/8" | 4 | 1 | 00000000 | 0000 | 5 | 0000000 | 0000 |
| 1 1/2" | 38 | 1 | 2 3/4" | 1 3/8" | 425 | 1 3/4" | 2 | 5 | 00000000 | 0000 | 5 | 00000000 | 0000 |