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3" Carbon Steel U-Bolt | 1/2"-13 Thread | Pipe Support

Expert Overview

This robust Carbon Steel U-Bolt is engineered for secure and reliable support of 3" nominal pipe. Featuring a 1.69" inside width and 2.36" inside length, it ensures a snug fit for demanding industrial applications.

StandardASME B18
MaterialCarbon Steel
FinishZinc Plated
GradeN/A
Inside Width ( A)1.69"
Inside Length ( B)2.36"
Thread Size1/2"-13

Detailed Engineering Specifications

Precision-manufactured to tight tolerances, this U-bolt is constructed from high-grade carbon steel, offering exceptional tensile strength and corrosion resistance for long-term performance in harsh environments. The 1.69" inside width accommodates a 3" nominal pipe diameter, while the 2.36" inside length provides ample clearance for mounting and securing. Equipped with 1/2"-13 UNC threads, it is designed for use with standard nuts and washers (sold separately) to create a secure fastening system capable of withstanding significant axial and radial loads. This specification ensures reliable pipe support in plumbing, HVAC, and structural applications.

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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 pipe and through the mounting surface. 2. Thread the provided nuts onto the U-bolt threads, ensuring even engagement. 3. Tighten nuts progressively and evenly to achieve the specified clamping force, avoiding over-tightening.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 9001:2015 Mfg
DIN EquivalentIndustry Standard
Primary StandardASME B18

Mechanical Properties

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

Chemical Composition

Carbon (C)0.28 - 0.55%
Manganese (Mn)0.60 - 0.90%
Phosphorus (P)0.04% max
Sulfur (S)0.05% max

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 / ExposedExcellent
Marine / SaltwaterNot Recommended
Chemical / AcidicNot Recommended

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Selecting the wrong pipe size U-bolt.Always verify the nominal pipe diameter and match it with the U-bolt's inside width (A) specification. For a 3" pipe, an inside width of approximately 1.69" is typically required.
Over-tightening nuts, leading to pipe deformation.Tighten nuts incrementally and evenly. Use a torque wrench if precise clamping force is critical for the application to prevent crushing or damaging the pipe.
Not using appropriate washers.Always use hardened flat washers under the nuts to distribute the clamping force evenly and prevent the nut from digging into the pipe or mounting surface.

Common Applications

  • Industrial pipe support and conduit clamping
  • Plumbing and HVAC system installation
  • Structural steel and conduit mounting

⚠️ Engineering Warnings

  • Ensure the U-bolt is rated for the load and environmental conditions of the application.
  • Always use appropriate safety equipment during installation, including gloves and eye protection.

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 Carbon Steel U-Bolt, 3" Pipe made from?

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

Q: What are the main applications?

A: Industrial pipe support and conduit clamping, Plumbing and HVAC system installation, Structural steel and conduit mounting.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 1.69"B2.36"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.