Home > U-Bolts > 304 Stainless Steel U-Bolt, 3" Pipe

304 Stainless U-Bolt for 3" Pipe | 1.44" W x 6.45" L | 1/2"-13 Thread

Expert Overview

This robust 304 stainless steel U-bolt is engineered for secure 3" pipe mounting. Offering superior corrosion resistance and strength, it's ideal for demanding environments and long-term structural integrity.

StandardDIN 933
Material304 Stainless Steel
FinishZinc Plated
GradeN/A
Inside Width ( A)1.44"
Inside Length ( B)6.45"
Thread Size1/2"-13

Detailed Engineering Specifications

Trusted by engineers across multiple sectors, this 304 stainless steel U-bolt is precisely manufactured to secure 3" nominal pipe sizes. With an inside width (A) of 1.44 inches and an inside length (B) of 6.45 inches, it accommodates standard pipe dimensions. The 1/2"-13 UNC thread size ensures a strong, reliable connection with compatible nuts and washers. Fabricated from 304 stainless steel, it provides excellent resistance to a wide range of corrosive media, including atmospheric conditions, many organic and inorganic chemicals, and food processing fluids, making it suitable for marine, chemical processing, and food/beverage industries.

🧊 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 and the mounting surface. 2. Thread the appropriate nuts and washers onto the U-bolt ends. 3. Tighten nuts evenly to the manufacturer's recommended torque specification for the specified thread size and material.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 9001:2015 Mfg
DIN EquivalentIndustry Standard
Primary StandardDIN 933

Mechanical Properties

Tensile Strength75,000 psi (515 MPa)
Yield Strength30,000 psi (205 MPa)
Elongation in 2 in.40% min
HardnessRockwell B95 max

Chemical Composition

Carbon (C)0.08% max
Chromium (Cr)18.0 - 20.0%
Nickel (Ni)8.0 - 10.5%
Manganese (Mn)2.00% max

Temperature & Environment Rating

Min Operating Temp
-320°F (-195°C)
Max Continuous Temp
1400°F (760°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 / SaltwaterGood
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 compare it with the U-bolt's inside width and length to ensure a proper fit.
Over-tightening or under-tightening the U-bolt.Consult torque charts for the specific thread size and material to achieve the optimal clamping force without deforming the pipe or mounting surface.

Common Applications

  • Pipe support and anchoring in marine environments
  • Securing conduits and tubing in chemical plants
  • Mounting structural components in food and beverage processing facilities

⚠️ Engineering Warnings

  • Ensure all nuts and washers are made of compatible stainless steel to prevent galvanic corrosion.
  • Regularly inspect U-bolts for signs of wear, corrosion, or loosening, 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 304 Stainless Steel U-Bolt, 3" Pipe made from?

A: This 304 Stainless Steel U-Bolt, 3" Pipe is manufactured from 304 Stainless Steel.

Q: What are the main applications?

A: Pipe support and anchoring in marine environments, Securing conduits and tubing in chemical plants, Mounting structural components in food and beverage processing facilities.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 1.44"B6.45"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.