Round bend U-bolts are crucial for many tasks, from holding up automotive parts to securing pipes in construction. They offer reliable fastening for cylindrical objects. However, choosing the right size is vital, as incorrect sizing can lead to issues. Understanding this balance ensures your project’s success and safety.
Round Bend U Bolt Dimensions
| Dia (A) – Thread | Length(B) | Width(C) | Thread(T) | For Pipe Size |
|---|---|---|---|---|
| 1/4″-20 | 9/16″ | 1-1/4″ | 3/4″ | 1/4″ |
| 1/4″-20 | 3/4″ | 1-1/4″ | 5/8″ | 3/8″ |
| 1/4″-20 | 3/4″ | 2-1/4″ | 1-1/2″ | 3/8″ |
| 1/4″-20 | 1″ | 1-3/4″ | 1″ | 1/2″ |
| 1/4″-20 | 1″ | 2-3/4″ | 1-1/4″ | 1/2″ |
| 1/4″-20 | 1-1/8″ | 2″ | 1″ | 3/4″ |
| 1/4″-20 | 1-1/8″ | 3-1/8″ | 1-1/2″ | 3/4″ |
| 1/4″-20 | 1-1/4″ | 2-1/4″ | 1-1/4″ | 3/4″ |
| 1/4″-20 | 1-1/2″ | 2-3/4″ | 1-3/8″ | 1″ |
| 1/4″-20 | 1-3/4″ | 3″ | 1-3/8″ | 1-1/4″ |
| 1/4″-20 | 2″ | 3-1/4″ | 1-3/8″ | 1-1/2″ |
| 5/16″-18 | 1″ | 2-3/16″ | 1-3/8″ | 1/2″ |
| 5/16″-18 | 1-1/8″ | 2-3/16″ | 1″ | 3/4″ |
| 5/16″-18 | 1-3/8″ | 2-3/16″ | 1″ | 1″ |
| 5/16″-18 | 1-3/8″ | 3-5/8″ | 2″ | 1″ |
| 5/16″-18 | 1-1/2″ | 2-3/16″ | 1″ | 1″ |
| 5/16″-18 | 1-3/4″ | 2-11/16″ | 1-1/8″ | 1-1/4″ |
| 5/16″-18 | 1-3/4″ | 4-1/2″ | 2″ | 1-1/4″ |
| 5/16″-18 | 2″ | 2-11/16″ | 1″ | 1-1/2″ |
| 5/16″-18 | 2″ | 4-3/4″ | 3″ | 1-1/2″ |
| 5/16″-18 | 2-1/2″ | 3-3/16″ | 1″ | 2″ |
| 5/16″-18 | 2-1/2″ | 5-5/8″ | 3″ | 2″ |
| 5/16″-18 | 3″ | 3-11/16″ | 1″ | 2-1/2″ |
| 3/8″-16 | 1″ | 2-1/4″ | 1-1/4″ | 1/2″ |
| 3/8″-16 | 1-1/4″ | 2-1/4″ | 1-1/4″ | 3/4″ |
| 3/8″-16 | 1-1/2″ | 2-1/2″ | 1-1/4″ | 1″ |
| 3/8″-16 | 1-3/4″ | 2-3/4″ | 1-1/8″ | 1-1/4″ |
| 3/8″-16 | 2″ | 2-5/8″ | 1-1/4″ | 1-1/2″ |
| 3/8″-16 | 2-1/2″ | 3-1/8″ | 1-1/4″ | 2″ |
| 3/8″-16 | 3″ | 3-5/8″ | 1-1/4″ | 2-1/2″ |
| 3/8″-16 | 3″ | 6-5/8″ | 3″ | 2-1/2″ |
| 3/8″-16 | 3-1/2″ | 4-1/8″ | 1-1/4″ | 3″ |
| 1/2″-13 | 3″ | 4-1/2″ | 1-5/8″ | 2-1/2″ |
| 1/2″-13 | 3-1/2″ | 5″ | 1-1/2″ | 3″ |
| 1/2″-13 | 3-1/2″ | 8-1/2″ | 3″ | 3″ |
| 1/2″-13 | 4″ | 5-1/2″ | 1-1/2″ | 3-1/2″ |
| 1/2″-13 | 4-1/2″ | 6″ | 1-1/2″ | 4″ |
| 1/2″-13 | 5-5/8″ | 7-1/4″ | 2″ | 5″ |
| 1/2″-13 | 6-3/4″ | 8-3/8″ | 2″ | 6″ |
| 1/2″-13 | 8-3/4″ | 10-3/8″ | 2″ | 8″ |
| *3/4″-10 | 10-7/8″ | 13-13/16 | 4″ | 10″ |
| *7/8″-9 | 12-7/8″ | 16-1/16″ | 4-1/4″ | 12″ |
| *7/8″-9 | 14-1/8″ | 17-5/16″ | 4-1/4″ | 14″ |
| *7/8″-9 | 16-1/8″ | 19-5/16″ | 4-1/4″ | 16″ |
| *1″-8 | 18-1/8″ | 21-11/16 | 4-3/4″ | 18″ |
Round Bend U-Bolt Assemblies – Zinc Plated and Hot Dip Galvanized
| Zinc Bolt & 2 Nuts | Zinc Bolt, Plate & 2 Nuts | HD Galv Bolt & 2 Nuts | HD Galv Bolt, Plate & 2 Nuts | |||||
|---|---|---|---|---|---|---|---|---|
| Pipe Size | Part No. | Lbs/100 | Part # | Lbs/100 | Part No | Weight per 100 | Part No | Weight per 100 |
| 1/4″ | 50005 0 | 5 | 50205 4 | 7 | 53005 7 | 5 | 53605 9 | 7 |
| 3/8″ | 50008 1 | 5 | 50208 5 | 7 | 53008 8 | 5 | 53608 0 | 7 |
| 3/8″ | 50011 1 | 7 | 50211 5 | 9 | 53011 9 | 7 | 53611 0 | 9 |
| 1/2″ | 50014 2 | 7 | 50214 6 | 9 | 53014 0 | 7 | 53614 1 | 9 |
| 1/2″ | 50017 3 | 8 | 50217 7 | 11 | 53017 | 8 | 53617 2 | 11 |
| 3/4″ | 50020 3 | 7 | 50220 7 | 9 | 53020 | 7 | 53620 2 | 9 |
| 3/4″ | 50023 4 | 9 | 50223 8 | 12 | 53023 | 9 | 53623 3 | 1 |
| 3/4″ | 50026 5 | 7.5 | 50226 9 | 10 | 53026 | 7.5 | 53626 4 | 10 |
| 1″ | 50029 6 | 9 | 50229 0 | 12 | 53029 | 9 | 53629 5 | 12 |
| 1-1/4″ | 50032 6 | 9 | 50232 0 | 12 | 53032 | 9 | 53632 5 | 12 |
| 1-1/2″ | 50035 7 | 9.5 | 50235 1 | 14 | 53035 | 9.5 | 53635 6 | 14 |
| 1/2″ | 50038 8 | 11 | 50238 2 | 14 | 53038 | 11 | 53638 7 | 14 |
| 3/4″ | 50041 8 | 12 | 50241 2 | 14.5 | 53041 | 12 | 53641 7 | 14.5 |
| 1″ | 50044 9 | 12 | 50244 3 | 15 | 53044 | 12 | 53644 8 | 15 |
| 1″ | 50047 0 | 16 | 50247 4 | 20 | 53047 | 16 | 53647 9 | 20 |
| 1″ | 50050 0 | 12 | 50250 4 | 15 | 53050 | 12 | 53650 9 | 15 |
| 1-1/4″ | 50053 1 | 13 | 50253 5 | 17.5 | 53053 | 13 | 53653 0 | 17.5 |
| 1-1/4″ | 50056 2 | 19 | 50256 6 | 24 | 53056 | 19 | 53656 1 | 24 |
| 1-1/2″ | 50059 3 | 14 | 50259 7 | 19 | 53059 | 14 | 53659 2 | 19 |
| 1-1/2″ | 50062 3 | 20 | 50262 7 | 25 | 53062 | 20 | 53662 2 | 25 |
| 2″ | 50065 4 | 16 | 50265 8 | 21 | 53065 | 16 | 53665 3 | 21 |
| 2″ | 50068 5 | 23 | 50268 9 | 29 | 53068 | 23 | 53668 4 | 29 |
| 2-1/2″ | 50071 5 | 18 | 50271 9 | 24 | 53071 | 18 | 53671 4 | 24 |
| 1/2″ | 50074 6 | 17.5 | 50274 0 | 22.5 | 53074 | 17.5 | 53674 5 | 22.5 |
| 3/4″ | 50077 7 | 18 | 50277 1 | 24 | 53077 | 18 | 53677 6 | 24 |
| 1″ | 50080 7 | 18.5 | 50280 1 | 26 | 53080 4 | 18.5 | 53680 6 | 26 |
| 1-1/4″ | 50083 8 | 20 | 50283 2 | 27.5 | 53083 5 | 20 | 53683 7 | 27.5 |
| 1-1/2″ | 50086 9 | 20 | 50286 3 | 29 | 53086 6 | 20 | 53686 8 | 29 |
| 2″ | 50089 0 | 24.5 | 50289 4 | 33 | 53089 7 | 24.5 | 53689 9 | 33 |
| 2-1/2″ | 50092 0 | 26 | 50292 4 | 38 | 53092 7 | 26 | 53692 9 | 38 |
| 2-1/2″ | 50095 1 | 41 | 50295 5 | 52.5 | 53095 8 | 41 | 53695 0 | 52.5 |
| 3″ | 50098 2 | 30 | 50298 6 | 42.5 | 53098 9 | 30 | 53698 1 | 42.5 |
| 2-1/2″ | 50101 9 | 59 | 50301 3 | 71 | 53101 6 | 59 | 53701 8 | 71 |
| 3″ | 50104 0 | 64 | 50304 4 | 78 | 53104 7 | 64 | 53704 9 | 78 |
| 3″ | 50107 1 | 95 | 50307 5 | 110 | 53104 7 | 64 | 53704 9 | 78 |
| 3-1/2″ | 50110 1 | 70 | 50310 5 | 87 | 53110 8 | 70 | 53710 0 | 87 |
| 4″ | 50113 2 | 75 | 50313 6 | 92.5 | 53113 9 | 75 | 53713 1 | 92.5 |
| 5″ | 50116 3 | 90 | NA | NA | 53116 0 | 90 | NA | NA |
| 6″ | 50119 4 | 101 | NA | NA | 53119 1 | 101 | NA | NA |
| 8″ | 50122 4 | 120 | NA | NA | 53122 1 | 120 | NA | NA |
| 10″ | 50125 5 | 440 | NA | NA | 53125 2 | 440 | NA | NA |
| 12″ | 50128 6 | 710 | NA | NA | 53128 3 | 710 | NA | NA |
| 14″ | 50131 6 | 755 | NA | NA | 53131 3 | 755 | NA | NA |
| 16″ | 50134 7 | 850 | NA | NA | 53134 4 | 850 | NA | NA |
| 18″ | 50137 8 | 1245 | NA | NA | 53134 4 | 850 | NA | NA |
Understanding Round Bend U-Bolts
Before diving into the size chart, it’s crucial to understand what round bend U-bolts are and how they differ from other types of U-bolts. Essentially, round bend U-bolts are shaped like a “U” with rounded edges, designed to provide secure fastening for cylindrical objects.
These U-bolts come in various types, including standard and heavy-duty versions, each suited for different applications. For instance, standard U-bolts are typically used in light-duty projects, while heavy-duty U-bolts are required for more demanding tasks, such as supporting large pipes or heavy machinery.
Common uses of round bend U-bolts range from automotive suspensions to construction and industrial settings. They offer a stronghold, but it’s important to choose the correct size to avoid issues. Using a U-bolt that’s too small can lead to inadequate support, whereas one that’s too large may not fit properly, affecting both performance and safety.
Understanding these factors and their impact helps in selecting the right size, ensuring your project’s success and avoiding potential problems.
Choosing the Right U-Bolt Size for Your Project
Selecting the right round bend U-bolt size involves understanding both the specifications and the requirements of your specific project. To match the size effectively, start by assessing the load and environment where the U-bolt will be used. For instance, a heavier load requires a larger, stronger U-bolt, while a lighter application might be adequately supported by a smaller size.
When selecting, use accurate measurements of the diameter and length needed for your project. Transitioning from general guidelines to specific requirements can prevent issues. For instance, using a U-bolt that’s too small might lead to insufficient support, while one that’s too large may not fit properly and could cause installation challenges.
Common mistakes to avoid include neglecting to measure correctly or choosing a U-bolt based solely on availability rather than suitability. Always consider the material and coating as well; for instance, a galvanized U-bolt is better for outdoor use compared to a non-coated one. Balancing these factors ensures that you select the right size, which is crucial for the effectiveness and safety of your project.
FAQ
1. What is the difference between round bend U-bolts and other types of U-bolts?
Answer: Round bend U-bolts have a “U” shape with rounded edges, designed to provide a secure grip on cylindrical objects like pipes and rods. Unlike square-bend U-bolts, which have sharp corners, round-bend U-bolts distribute pressure more evenly and reduce the risk of damage to the object being clamped. This makes them ideal for applications requiring a secure, gentle hold.
2. How do I measure a round bend U-bolt to ensure the correct size?
Answer: To measure a round bend U-bolt, you need to determine its diameter, length, and width. First, measure the diameter of the pipe or rod it will be clamping. Next, measure the length between the legs of the U-bolt. Ensure the U-bolt’s width matches the diameter of the cylindrical object for a snug fit. Accurate measurements help prevent issues like inadequate support or poor fit during installation.
3. What should I do if I can’t find the exact size of the round bend U-bolt I need?
Answer: If the exact size is unavailable, consider selecting a U-bolt with a slightly larger diameter and then use appropriate spacers or washers to achieve a secure fit. Alternatively, you can consult with a manufacturer or supplier who might offer custom sizing options. It’s essential to avoid using a U-bolt that’s too small, as it may not provide the necessary support and could compromise safety and functionality.