Let’s cut to it: if what you’re clamping needs to stay put, your U‑bolt better hold up—especially if it’s outdoors, exposed to salt air, or standing in a chemical bath. Marsh Fasteners’ stainless steel U‑bolts do just that. Built in either reliable 304 stainless or the tougher 316 stainless, they resist corrosion and keep their grip under pressure. Whether it’s securing plumbing, mounting marine hardware, or supporting structural beams, these U‑bolts deliver. We offer both metric and imperial options—from small M6 sizes for precision builds to massive 12‑inch pipe clamps that handle serious loads. Plus, every U‑bolt includes the necessary nuts and plates—because nobody needs five part numbers for one proper clamp.
Our Range of Stainless Steel U‑Bolts Includes
Our stainless steel U‑bolts cover every application, from precision assemblies to large structural supports. Each type is built for dependable grip and corrosion resistance. Whether you’re securing a small conduit or a heavy pipe system, you’ll find the right size and strength here—complete with matched plates and nuts for a ready‑to‑install fit.
Metric Stainless U‑Bolts (M6, M8, M10, and up)
Small-scale doesn’t mean weak. These metric U‑bolts are perfect for machinery, robotics, conduits, and automation systems. The included plate and nuts are precision‑matched, making your assembly smoother and more reliable.
Imperial‑Size U‑Bolts (Standard Round Bend, 18‑8 / 304 SS)
The workhorse of the U‑bolt world. Use these on pipes, struts, and general structural tasks. Coarse threads and standard dimensions make them easy to spec and pair.
Oversized Pipe U‑Bolts (e.g., 12″ OD, 7/8″ Rod)
When “standard” is too small, these giants step in. Designed for large-diameter piping, structural supports, or reinforcement systems.
Technical Specifications (Because Specs Matter)
Here’s the meat for engineers and buyers who want the data upfront:
| Specification | Details |
|---|---|
| Dimensions | Metric: M6–M10 (~1.25–3″ thread); Imperial: 3/8″‑16, 2½″ width, 3⅝″ length |
| Materials | 304 (18‑8) Stainless Steel (general); 316 Stainless Steel (marine/chemical) |
| Pipe/Tubing Support | From small tubing (metric U‑bolts) to 12″ pipe OD (oversized) |
| Load Capacity | Up to ~7,540 lbs in heavy‑duty models |
| Torque / Clamping | Use K‑factor calculation; lubricated threads give consistent load support |
Benefits of Stainless Steel U‑Bolts
Choosing the Right U‑Bolt
Follow these tips to make sure you pick the right U-bolt:
1. Pick the Right Material
2. Match the Size Correctly
3. Load Capacity & Proper Torque
4. Check Included Accessories
Why Choose Marsh Fasteners?
We’re not a generic catalog. We’re fastener experts.
What Our Customers Say
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