Home > U-Bolts > Aluminum 6061 U-Bolt, 3" Pipe

3" Aluminum 6061 U-Bolt | 2.67" Width x 5.49" Length

Expert Overview

Engineered for demanding environments, this Aluminum 6061 U-Bolt secures 3" nominal pipes with precision. Its corrosion-resistant properties make it ideal for marine, chemical, and outdoor applications.

StandardDIN 933
MaterialAluminum 6061
FinishPlain
GradeN/A
Inside Width ( A)2.67"
Inside Length ( B)5.49"
Thread Size1/2"-13

Detailed Engineering Specifications

A high-performance industrial component, this U-Bolt is fabricated from Aerospace-grade Aluminum 6061, renowned for its excellent strength-to-weight ratio, weldability, and superior resistance to corrosion, especially in saltwater and chemical exposure. The precise dimensions, including an Inside Width (A) of 2.67 inches and an Inside Length (B) of 5.49 inches, ensure a secure and proper fit for 3" nominal pipe sizes. It features a robust 1/2"-13 thread size, providing ample engagement for associated nuts (sold separately). This material composition makes it a lightweight yet durable solution for structural support and pipe anchoring.

🧊 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."
Market Rank
🏆 Global Innovation Leader
Industry Approvals
🚀 Aviation & Medical Approved
Warranty & Support
🛡️ Premium Performance Guarantee
Green Manufacturing
🌱 100% Renewable Energy HQ
Certified:ISO 9001, ISO 14001
LoctiteEst. 1953
Germany🇩🇪
"Industrial adhesives and sealants."
Market Rank
🏆 #1 Global Adhesives
Industry Approvals
🚀 Formula 1 & Aerospace OEM
Warranty & Support
🛡️ 24/7 Application Support
Green Manufacturing
🌱 Climate Positive 2030
Certified:ISO 9001, IATF 16949
McMaster-CarrEst. 1901
USA🇺🇸
"Complete industrial supply."
Market Rank
🏆 #1 Industrial Supply Standard
Industry Approvals
🚀 US Military Approved
Warranty & Support
🛡️ 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:N/A

Installation Procedure

1. Position the U-Bolt around the 3" nominal pipe, ensuring it rests flush against the mounting surface. 2. Thread the provided nuts onto the U-Bolt legs, hand-tightening initially. 3. Using appropriate wrenches, gradually tighten the nuts in an alternating pattern to ensure even pressure and secure the pipe firmly to the mounting surface. Avoid over-tightening.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 9001:2015 Mfg
DIN EquivalentIndustry Standard
Primary StandardDIN 933

Mechanical Properties

Tensile StrengthStandard Commercial Spec
Yield StrengthStandard Commercial Spec
HardnessVaries by specific batch

Temperature & Environment Rating

Min Operating Temp
-20°F (-29°C)
Max Continuous Temp
400°F (204°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 / ExposedModerate
Marine / SaltwaterNot Recommended
Chemical / AcidicNot Recommended

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Using the wrong U-Bolt size for the pipe diameter.Always verify the 'Inside Width (A)' spec against the nominal pipe outer diameter to ensure a correct fit. For 3" nominal pipe, the 2.67" inside width is critical.
Over-tightening the nuts, which can deform the pipe or damage the U-Bolt threads.Tighten nuts incrementally and evenly. Consult torque specifications for the specific application if available. Hand-tight plus a measured amount of turn is often sufficient.

Common Applications

  • Marine and offshore pipe support
  • Chemical processing equipment mounting
  • Outdoor structural pipe anchoring
  • Exhaust system clamping

⚠️ Engineering Warnings

  • Ensure compatibility of clamping surface material with Aluminum 6061 to prevent galvanic corrosion.
  • Always use appropriate thread-locking compounds if vibration is a concern and if compatible with the application environment.

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 Aluminum 6061 U-Bolt, 3" Pipe made from?

A: This Aluminum 6061 U-Bolt, 3" Pipe is manufactured from Aluminum 6061.

Q: What are the main applications?

A: Marine and offshore pipe support, Chemical processing equipment mounting, Outdoor structural pipe anchoring, Exhaust system clamping.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 2.67"B5.49"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.