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3" Carbon Steel U-Bolt | 1/2"-13 Thread | Industrial Grade

Expert Overview

This heavy-duty U-bolt is engineered from high-grade carbon steel for superior strength and corrosion resistance. Designed for securing 3-inch diameter pipes and conduits, it ensures lasting stability in demanding industrial environments.

StandardASME B18
MaterialCarbon Steel
FinishZinc Plated
GradeN/A
Inside Width ( A)4.21"
Inside Length ( B)4.86"
Thread Size1/2"-13

Detailed Engineering Specifications

A high-performance industrial component, this U-bolt is precisely manufactured from durable carbon steel, offering excellent tensile strength and load-bearing capacity suitable for rigorous applications. It features an inside width (A) of 4.21 inches and an inside length (B) of 4.86 inches, specifically designed to accommodate standard 3-inch nominal pipe sizes and provide ample clearance for insulation or coatings. The robust 1/2"-13 UNC threads ensure secure fastening with standard nuts, guaranteeing a reliable and long-lasting connection. Its material composition provides inherent resistance to abrasion and moderate chemical exposure, making it an ideal choice for pipeline support, conduit mounting, and structural 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
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🛡️ Premium Performance Guarantee
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🌱 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:Yes

Installation Procedure

1. Position the U-bolt around the pipe or conduit, ensuring it is centered for even load distribution. 2. Thread the corresponding nuts onto the U-bolt legs, finger-tight initially. 3. Use appropriate wrenches to tighten the nuts evenly on both sides, applying consistent torque as specified by the application's load requirements.

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
Using the wrong size U-bolt for the pipe diameter.Always verify the nominal pipe size and select a U-bolt with an inside width that closely matches the pipe's outer diameter, allowing for slight clearance if necessary.
Over-tightening or under-tightening the nuts.Apply torque evenly to both nuts and consult engineering specifications or load charts for the correct torque values to prevent structural damage or inadequate support.

Common Applications

  • Pipe and conduit support in plumbing and HVAC systems
  • Securing structural components in construction and fabrication
  • Mounting and anchoring of industrial equipment and machinery

⚠️ Engineering Warnings

  • Ensure all nuts and washers are used for proper load distribution and secure fastening.
  • Regularly inspect U-bolts for signs of corrosion, wear, or loosening, and replace as needed to maintain system integrity.

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: Pipe and conduit support in plumbing and HVAC systems, Securing structural components in construction and fabrication, Mounting and anchoring of industrial equipment and machinery.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 4.21"B4.86"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.