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3" Carbon Steel U-Bolt | 4.39" Width x 3.70" Length | 1/2"-13 Thread

Expert Overview

This heavy-duty Carbon Steel U-Bolt is engineered for secure 3" pipe mounting. With a 4.39" inside width and 3.70" inside length, it provides robust support for various industrial and construction needs.

StandardASME B18
MaterialCarbon Steel
FinishPassivated
GradeN/A
Inside Width ( A)4.39"
Inside Length ( B)3.70"
Thread Size1/2"-13

Detailed Engineering Specifications

Engineered for reliability and performance, this U-Bolt is constructed from high-grade carbon steel, offering exceptional tensile strength and corrosion resistance for demanding environments. The precise dimensions, including an inside width (A) of 4.39 inches and an inside length (B) of 3.70 inches, ensure a snug and secure fit around standard 3-inch nominal pipes. The 1/2"-13 UNC thread size provides ample engagement for standard nuts, facilitating secure fastening and load distribution. This specification guarantees compatibility with common hardware and ensures a stable, vibration-resistant connection suitable for plumbing, structural support, and conduit 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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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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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, ensuring it rests on a suitable support surface or beam. 2. Thread the provided nuts onto the U-bolt arms until snug. 3. Tighten nuts alternately and evenly to the recommended torque specification for the chosen support material and 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 / ExposedModerate
Marine / SaltwaterNot Recommended
Chemical / AcidicNot Recommended

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Over-tightening nuts, which can deform the pipe or bracket.Use a torque wrench and adhere to the recommended torque values for the application.
Using the wrong size U-bolt, leading to a loose or insecure fit.Always confirm the nominal pipe size and measure existing U-bolts if unsure before ordering.

Common Applications

  • Plumbing and pipe support
  • Conduit and cable tray mounting
  • Structural steel framing and bracing

⚠️ Engineering Warnings

  • Ensure proper thread engagement for secure fastening.
  • Do not exceed the recommended load capacity 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 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: Plumbing and pipe support, Conduit and cable tray mounting, Structural steel framing and bracing.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 4.39"B3.70"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.