Home > U-Bolts > 316 Stainless Steel U-Bolt, 4" Pipe

4" 316 Stainless Steel U-Bolt | Heavy Duty Pipe Support

Expert Overview

This robust 316 stainless steel U-bolt is engineered for secure and reliable support of 4" diameter piping. Its superior corrosion resistance makes it ideal for demanding industrial environments and marine applications.

StandardDIN 933
Material316 Stainless Steel
FinishGalvanized
GradeN/A
Inside Width ( A)4.86"
Inside Length ( B)6.86"
Thread Size1/2"-13

Detailed Engineering Specifications

Purpose-built for heavy-duty applications, this U-bolt ensures superior structural integrity and longevity. Constructed from premium 316 stainless steel, it offers exceptional resistance to corrosion and pitting, even in harsh chemical or saltwater environments. The precise dimensions, including an Inside Width (A) of 4.86 inches and an Inside Length (B) of 6.86 inches, are designed to accommodate standard 4" nominal pipe sizes with a secure, snug fit. The robust 1/2"-13 UNC thread size provides ample clamping force and is compatible with industry-standard nuts and washers for a complete fastening solution. This U-bolt is critical for preventing pipe movement, vibration, and strain on connected 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."
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 4" pipe, ensuring it is centered and flush against the mounting surface. 2. Place the accompanying washers and nuts onto the threaded legs of the U-bolt. 3. Tighten the nuts evenly and progressively using a torque wrench, following recommended torque specifications for the chosen hardware to achieve secure clamping without over-stressing the pipe or fitting.

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)16.0 - 18.0%
Nickel (Ni)10.0 - 14.0%
Molybdenum (Mo)2.0 - 3.0%

Temperature & Environment Rating

Min Operating Temp
-320°F (-195°C)
Max Continuous Temp
1500°F (815°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 / SaltwaterExcellent
Chemical / AcidicGood

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Using standard carbon steel U-bolts in corrosive environments.Always select 316 stainless steel for applications exposed to moisture, chemicals, or saltwater to prevent premature corrosion and failure.
Improperly torquing nuts, leading to loose or over-tightened support.Utilize a calibrated torque wrench and adhere to manufacturer-recommended torque values for the specific nut and bolt size to ensure optimal clamping force and prevent damage.

Common Applications

  • Marine piping systems
  • Chemical processing plants
  • Offshore oil and gas infrastructure
  • Wastewater treatment facilities
  • Food and beverage processing

⚠️ Engineering Warnings

  • Ensure compatibility of mounting surface and hardware with the 316 stainless steel U-bolt to avoid galvanic corrosion.
  • Verify that the U-bolt's dimensions are appropriate for the specific pipe diameter and application requirements before 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 316 Stainless Steel U-Bolt, 4" Pipe made from?

A: This 316 Stainless Steel U-Bolt, 4" Pipe is manufactured from 316 Stainless Steel.

Q: What are the main applications?

A: Marine piping systems, Chemical processing plants, Offshore oil and gas infrastructure, Wastewater treatment facilities, Food and beverage processing.

Technical Schematic

U-BOLT DIMENSIONAL DIAGRAMASME B18.31.5PIPE1"NUTNUTA = 4.86"B6.86"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.