Fasteners
Bolts
Hillman
$2-$10 eachU-Bolts for Clamping Pipes, Tubes, and Round Stock
U-bolts are U-shaped threaded fasteners that wrap around pipes, tubes, and conduit to clamp them securely to mounting surfaces. With two threaded legs passing through a plate, they create adjustable, strong clamping connections.
Key Features
- U-shape wraps around pipes and tubes
- Two threaded legs with nuts for clamping
- Adjustable clamping force
- Standard pipe and tube sizes
- Galvanized and stainless options
Specifications
Material: Carbon steel
galvanized
or stainless | Pipe sizes: 1/2in to 4in IPS | Thread: 1/4-20 to 1/2-13 | Includes: U-bolt
plate
2 nuts
Best For
Pipe and conduit mounting
Fence rail attachment
Automotive exhaust hangers
Cable and wire management
Compatible Materials
Steel pipe
PVC pipe
Conduit
Round tubing
Fence rails
Pros & Cons
Pros
- ✓ Simple effective pipe clamping
- ✓ Adjustable tightening
- ✓ Reusable and removable
- ✓ All common pipe sizes
Cons
- ✗ Can crush soft pipes if overtightened
- ✗ Limited to round stock
- ✗ Must match pipe diameter closely
Installation Tips
Select U-bolt sized for outside diameter of pipe. Place saddle plate on underside. Tighten nuts evenly alternating sides to prevent pipe shifting.
Frequently Asked Questions
Measure outside diameter of pipe. U-bolt inside width should match or be slightly larger than pipe OD.
Yes. Drill two holes through beam, pass threaded legs through, use washers and plates on backside.