Home > U-Bolts > 304 Stainless Steel U-Bolt, 4" Pipe

4" 304 Stainless Steel U-Bolt - 3.85" Width, 5.69" Length

Expert Overview

Engineered for robust pipe support, this 4" U-bolt is crafted from high-grade 304 stainless steel. It offers exceptional corrosion resistance, ensuring long-term performance in demanding environments.

StandardASTM A106
Material304 Stainless Steel
FinishPlain
GradeN/A
Inside Width ( A)3.85"
Inside Length ( B)5.69"
Thread Size1/2"-13

Detailed Engineering Specifications

Specified by design engineers worldwide, this 304 stainless steel U-bolt is designed for secure mounting of 4" nominal pipe. Featuring an inside width (A) of 3.85 inches and an inside length (B) of 5.69 inches, it accommodates standard pipe dimensions with precision. The robust 1/2"-13 UNC thread size ensures a strong, reliable connection when paired with appropriate nuts and washers. The inherent properties of 304 stainless steel, including its excellent resistance to a wide range of corrosive media and its durability under varying temperature conditions, make this U-bolt ideal for marine, chemical processing, food and beverage, and general industrial applications where hygiene and longevity are paramount. This specification guarantees structural integrity and chemical inertness, crucial for critical infrastructure.

🧊 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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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 4" pipe, ensuring it rests on a suitable mounting surface or through a pre-drilled hole. 2. Secure the U-bolt by threading the provided nuts onto the bolt ends, ensuring even pressure distribution. 3. Tighten the nuts to the manufacturer's recommended torque specification, using appropriate tools, to achieve a firm and stable installation.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 9001:2015 Mfg
DIN EquivalentIndustry Standard
Primary StandardASTM A106

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
Using the wrong size U-bolt for the pipe.Verify the nominal pipe size and compare it against the U-bolt's inside dimensions (width and length) before installation.
Inadequate tightening of nuts, leading to movement.Utilize a torque wrench to ensure nuts are tightened to the specified torque, preventing vibration and slippage.
Corrosion due to dissimilar metals in the assembly.When using 304 stainless steel U-bolts, ensure all accompanying hardware (nuts, washers) are also made of 304 stainless steel or a compatible material to prevent galvanic corrosion.

Common Applications

  • Pipe support and clamping in marine environments
  • Securing conduits and tubing in chemical processing plants
  • Mounting plumbing and HVAC components in food and beverage facilities
  • General structural pipe anchoring in industrial settings

⚠️ Engineering Warnings

  • Ensure all hardware, including nuts and washers, is made of 304 stainless steel to prevent galvanic corrosion.
  • Do not exceed the maximum load capacity specified by the manufacturer for this U-bolt.

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: Pipe support and clamping in marine environments, Securing conduits and tubing in chemical processing plants, Mounting plumbing and HVAC components in food and beverage facilities, General structural pipe anchoring in industrial settings.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 3.85"B5.69"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.