U-Bolt Standard with Hex Nuts Hot Dip Galvanized IPS
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Clamp pipe firmly to a support. The U-bolt wraps over the pipe and passes through a support, beam, or plate, fastened with two hex nuts to hold the pipe positively in place. Hot dip galvanized finish, IPS sizing.
- U-shaped bolt with two threaded legs and hex nuts
- Secures pipe to a strut, support, or plate
- Positive restraint against pipe movement
- Hot dip galvanized for heavy corrosion resistance, indoor or outdoor
- Manufactured to MSS SP-58 pipe support standards
✔ Used by contractors and professionals
✔ Designed for reliable jobsite performance
Overview
A U-bolt is the simplest positive pipe restraint: the U-shaped bolt wraps over the pipe, passes through a support or plate, and is fastened with hex nuts on each leg. It holds the pipe firmly against movement. Hot dip galvanized adds a thick zinc coating for wet, humid, and outdoor service.
Common Uses
- Securing pipe to struts, supports, and plates
- Restraining pipe against movement and uplift
- Outdoor, humid, and corrosive environments
- Guides and anchor points on pipe runs
Key Features
- U-shaped bolt with two threaded legs
- Hex-nut fastening
- Hot dip galvanized for heavy-duty corrosion resistance
- MSS SP-58 / SP-69 Type 24
Specifications
| Type | Standard U-Bolt with Hex Nuts (Empire Fig. 137) |
| Finish | Hot Dip Galvanized |
| Pipe Sizing | IPS |
| Standard | MSS SP-58 / SP-69 Type 24 |
Load Ratings by Pipe Size
Maximum recommended load by pipe size, per Empire Fig. 137 engineering data. Match to your pipe's nominal size and apply your project's factor of safety.
| Pipe Size | Max. Rec. Load (lb) |
| 1/2–1" | 485 |
| 1-1/4–2" | 1,220 |
| 2-1/2–5" | 2,260 |
| 6–8" | 3,620 |
| 10" | 5,420 |
| 12–16" | 7,540 |
| 18–30" | 9,920 |
Listings & Standards
- MSS SP-58 / SP-69 Type 24
- Not UL/FM listed (this is an MSS-compliant restraint, not a fire-rated listed component)
Competitor Cross-Reference
| PVF Pro (Empire Fig. 137) | Anvil | Cooper B-Line |
| Standard U-Bolt | 137 | B3188 |
Cross-reference is for identification only. Anvil® and Cooper B-Line® are trademarks of their respective owners, which are not affiliated with or endorsing Empire Industries or PVF Pro. Always confirm fit and load rating for your application.
Frequently Asked Questions
What is a U-bolt used for?
It clamps a pipe to a strut, support, or plate — providing positive restraint against movement. Tighten the hex nuts on each leg to secure.
What size do I need?
Select to match your pipe's nominal size (IPS). U-bolts are chosen by size, material, and thread — confirm all three.
Fewer reorders. Lower cost per job. Keeps your crew stocked.