Home > U-Bolts > Brass U-Bolt, 3" Pipe

3" Brass U-Bolt | Heavy-Duty Pipe Support | 1/2"-13 Thread

Expert Overview

Engineered for demanding environments, this 3" brass U-bolt provides superior corrosion resistance and structural integrity. Its robust design ensures secure, long-lasting pipe support in critical applications.

StandardISO 9001
MaterialBrass
FinishPlain
GradeN/A
Inside Width ( A)3.86"
Inside Length ( B)3.45"
Thread Size1/2"-13

Detailed Engineering Specifications

Purpose-built for heavy-duty applications, this U-bolt is forged from high-grade brass, offering exceptional resistance to corrosion, especially in marine, chemical processing, and plumbing systems. The precision-engineered dimensions, including an inside width (A) of 3.86 inches and an inside length (B) of 3.45 inches, are optimized to securely cradle standard 3-inch nominal pipe sizes. Featuring a robust 1/2"-13 UNC coarse thread, it ensures a strong mechanical connection when paired with appropriate nuts and washers, providing reliable structural support for piping 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."
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 pipe and through the mounting surface or bracket. 2. Thread the nuts onto the U-bolt legs evenly, ensuring snug contact with the mounting surface. 3. Tighten the nuts to the specified torque, ensuring the pipe is securely held without deformation.

Equivalent Standards (Cross-Reference)

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

Mechanical Properties

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

Chemical Composition

Copper (Cu)60.0 - 63.0%
Zinc (Zn)Balance
Lead (Pb)2.5 - 3.7%

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
Over-tightening nuts, leading to pipe deformation or thread stripping.Use a torque wrench set to the manufacturer's recommended torque specification for brass fittings and pipe supports.
Using the wrong thread size for the nuts, compromising the connection's strength.Always verify that the nut thread size (1/2"-13 UNC) matches the U-bolt's thread specification.

Common Applications

  • Marine piping systems
  • Chemical processing plants
  • Plumbing and HVAC installations requiring corrosion resistance
  • Industrial conduit and cable trays

⚠️ Engineering Warnings

  • Ensure compatibility of mating hardware (nuts, washers) with brass to prevent galvanic corrosion.
  • Do not exceed the maximum load capacity specified for this U-bolt type and material.

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 Brass U-Bolt, 3" Pipe made from?

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

Q: What are the main applications?

A: Marine piping systems, Chemical processing plants, Plumbing and HVAC installations requiring corrosion resistance, Industrial conduit and cable trays.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 3.86"B3.45"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.