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3" Carbon Steel U-Bolt | 3.51" Wide x 7.37" Long | Industrial Grade

Expert Overview

This industrial-grade U-bolt provides robust and reliable support for 3-inch diameter piping. Constructed from durable carbon steel, it ensures secure mounting and long-lasting performance in demanding applications.

StandardDIN 933
MaterialCarbon Steel
FinishBlack Oxide
GradeN/A
Inside Width ( A)3.51"
Inside Length ( B)7.37"
Thread Size1/2"-13

Detailed Engineering Specifications

A proven choice for industrial professionals, this 3" Carbon Steel U-Bolt is engineered for superior performance and durability. Featuring an inside width (A) of 3.51 inches and an inside length (B) of 7.37 inches, it is designed to accommodate standard 3-inch nominal pipe sizes. The robust carbon steel construction offers excellent tensile strength and resistance to corrosion, making it suitable for a wide range of environmental conditions. The 1/2"-13 UNC thread size ensures secure fastening with compatible nuts and washers, allowing for reliable attachment to structural members or mounting plates. This U-bolt is ideal for securing pipes, conduits, and rods in mechanical, plumbing, and structural support systems.

🧊 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."
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🏆 Global Innovation Leader
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🌱 100% Renewable Energy HQ
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."
Market Rank
🏆 #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 or conduit, ensuring it is centered. 2. Place the U-bolt over the mounting surface and thread the nuts onto the bolt ends. 3. Tighten the nuts evenly and securely, ensuring a snug fit without over-tightening, which could deform the pipe.

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

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
Selecting the wrong size U-bolt for the pipe diameter.Always verify the nominal pipe size and ensure the U-bolt's inside dimensions are appropriate for a secure fit.
Over-tightening the nuts, leading to pipe deformation or damage.Tighten nuts until snug. Use a torque wrench if specified by system design or application requirements to avoid excessive force.

Common Applications

  • Pipe and conduit support in plumbing systems
  • Securing structural components in construction
  • Rod and cable management in industrial machinery

⚠️ Engineering Warnings

  • Ensure proper thread engagement for secure fastening.
  • Inspect regularly for signs of corrosion or wear, especially in harsh environments.

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 systems, Securing structural components in construction, Rod and cable management in industrial machinery.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 3.51"B7.37"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.