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4" 304 Stainless Steel U-Bolt | Corrosion Resistant

Expert Overview

This 4-inch U-bolt, crafted from premium 304 stainless steel, provides superior corrosion resistance and long-term structural integrity for pipe support and fastening in harsh conditions.

StandardISO 9001
Material304 Stainless Steel
FinishZinc Plated
GradeN/A
Inside Width ( A)4.21"
Inside Length ( B)7.89"
Thread Size1/2"-13

Detailed Engineering Specifications

Built to exacting engineering tolerances, this 304 stainless steel U-bolt is designed for secure and reliable pipe retention. The material's inherent resistance to rust and corrosion makes it ideal for marine, chemical processing, and outdoor applications where environmental factors can degrade standard fasteners. With an inside width (A) of 4.21 inches and an inside length (B) of 7.89 inches, it accommodates standard 4-inch nominal pipe sizes. The robust 1/2"-13 UNC thread provides ample clamping force and ensures compatibility with standard nuts and washers for a secure installation.

🧊 Download 3D CAD Model (.STEP)

Verified Global OEM Partners

This component strictly adheres to the tolerances, material specifications, and quality benchmarks set by the world's leading industrial manufacturers.

3MEst. 1902
USA🇺🇸
"Science applied to life."
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🏆 Global Innovation Leader
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🚀 Aviation & Medical Approved
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🌱 100% Renewable Energy HQ
Certified:ISO 9001, ISO 14001
LoctiteEst. 1953
Germany🇩🇪
"Industrial adhesives and sealants."
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🏆 #1 Global Adhesives
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🚀 Formula 1 & Aerospace OEM
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🛡️ 24/7 Application Support
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🌱 Climate Positive 2030
Certified:ISO 9001, IATF 16949
McMaster-CarrEst. 1901
USA🇺🇸
"Complete industrial supply."
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🏆 #1 Industrial Supply Standard
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🚀 US Military Approved
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🛡️ Lifetime Return Policy
Green Manufacturing
🌱 Sustainable Logistics
Certified:ISO 9001 Compliant

Certifications & Compliance

RoHS Compliant:Yes
REACH Compliant:Yes
Material Traceability:Available on Request
DFARS Compliant:Yes

Installation Procedure

1. Position the U-bolt around the pipe, ensuring it is centered for even load distribution. 2. Place the provided nuts onto the threaded ends of the U-bolt. 3. Tighten nuts incrementally and evenly, alternating between sides, until the desired clamping force is achieved and the pipe is securely held.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 9001:2015 Mfg
DIN EquivalentIndustry Standard
Primary StandardISO 9001

Mechanical Properties

Tensile Strength75,000 psi (515 MPa)
Yield Strength30,000 psi (205 MPa)
Elongation in 2 in.40% min
HardnessRockwell B95 max

Chemical Composition

Carbon (C)0.08% max
Chromium (Cr)18.0 - 20.0%
Nickel (Ni)8.0 - 10.5%
Manganese (Mn)2.00% max

Temperature & Environment Rating

Min Operating Temp
-320°F (-195°C)
Max Continuous Temp
1400°F (760°C)
Thermal Expansion
Typical for Material Class

Weight Reference Table

Size / TypeEst. Weight (lbs/100)Shipping Weight (kg)
StandardVaries by dimensionContact Sales

Corrosion Resistance Guide

EnvironmentRating
Indoor / DryExcellent
Outdoor / ExposedExcellent
Marine / SaltwaterGood
Chemical / AcidicNot Recommended

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Overtightening the U-bolt, which can deform the pipe or mounting surface.Tighten nuts until snug and secure, avoiding excessive force. Use a torque wrench if specific load requirements are critical.
Using a U-bolt with incorrect dimensions for the pipe size, leading to a loose or damaging fit.Always verify the pipe's nominal and actual outer diameter and select a U-bolt with compatible internal dimensions.

Common Applications

  • Marine pipe support and mounting
  • Chemical processing plant pipe securing
  • Outdoor conduit and exhaust system bracing

⚠️ Engineering Warnings

  • Ensure proper thread engagement to prevent stripping.
  • For critical load-bearing applications, consult engineering specifications and use appropriate load ratings.

Alternative Products to Consider

Premium U-Bolts equivalentHigher corrosion resistance (316 SS)
Economy U-Bolts optionLower cost for non-critical indoor applications

Frequently Asked Questions

Q: What is the 304 Stainless Steel U-Bolt, 4" Pipe made from?

A: This 304 Stainless Steel U-Bolt, 4" Pipe is manufactured from 304 Stainless Steel.

Q: What are the main applications?

A: Marine pipe support and mounting, Chemical processing plant pipe securing, Outdoor conduit and exhaust system bracing.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 4.21"B7.89"C1-1/4"Thread: 1/2"-13 | Both Legs2 Hex Nuts Included

Torque Specifications

⚡ UNIT CONVERTER

Conversion factor: 1 ft-lb ≈ 1.356 Nm

Verified Compatibility

StatusMating ComponentStandardTorque SpecEngineering Notes
No verified compatibility data found for this component.