Home > U-Bolts > Carbon Steel U-Bolt, 3" Pipe

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

Expert Overview

This robust 3-inch carbon steel U-bolt, featuring a 1/2"-13 thread size, is engineered for superior pipe and conduit support. Its durable construction ensures reliable performance in demanding industrial environments.

StandardDIN 933
MaterialCarbon Steel
FinishPlain
GradeN/A
Inside Width ( A)4.89"
Inside Length ( B)2.78"
Thread Size1/2"-13

Detailed Engineering Specifications

Built to exacting engineering tolerances, this U-bolt is fabricated from high-grade carbon steel, offering exceptional tensile strength and corrosion resistance for long-term structural integrity. The precise inside width of 4.89 inches and inside length of 2.78 inches are designed to securely embrace standard 3-inch nominal pipe dimensions. The 1/2"-13UNC thread size ensures compatibility with standard heavy-duty nuts and washers, facilitating secure and vibration-resistant fastening. This configuration makes it an ideal choice for critical infrastructure, mechanical systems, and industrial racking where unwavering support is paramount.

🧊 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:Yes

Installation Procedure

1. Position the U-bolt around the pipe or conduit, ensuring it rests securely in the saddle. 2. Thread the accompanying nuts onto the U-bolt legs, hand-tightening initially. 3. Use appropriate wrenches to uniformly tighten the nuts, ensuring even pressure on both sides for a stable and secure fit. Avoid overtightening to prevent pipe deformation.

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
Using incorrect thread size nuts.Always ensure the nuts used have a matching 1/2"-13 thread size to guarantee a secure and proper fit.
Uneven tightening of nuts.Tighten nuts gradually and alternately on each leg to ensure even pressure distribution and prevent stress on the pipe or mounting surface.

Common Applications

  • Pipe and conduit support in industrial facilities
  • Mounting of structural members and supports
  • Securing exhaust systems and fluid transfer lines

⚠️ Engineering Warnings

  • Ensure the mounting surface can adequately support the load.
  • Use appropriate safety gear, including gloves and eye protection, during installation.

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 industrial facilities, Mounting of structural members and supports, Securing exhaust systems and fluid transfer lines.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 4.89"B2.78"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.