Editorial Technical Reference

End Connection Fittings

This page explains how End Connection Fittings is classified within Fabricated Metal Product Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

Specialized fittings designed to securely connect bracing system components to structural endpoints or adjacent systems.

Product Specifications

Technical details and manufacturing context for End Connection Fittings

Definition
End connection fittings are critical components within bracing systems that provide the interface between bracing elements (such as rods, cables, or beams) and the structural endpoints they connect to, such as building frames, machinery bases, or other support structures. These fittings ensure proper load transfer, alignment, and secure attachment while accommodating installation tolerances and movement. They are manufactured from carbon steel, stainless steel, or alloy steel, with material grades such as Q235–Q345 for carbon steel, as referenced in GB/T 700. The fittings are available in nominal sizes from DN15 to DN100 (ISO 6708), operating pressures from 1.0 to 1.6 MPa, and temperature ranges from -20°C to 80°C. Tensile strength is at least 450 MPa, yield strength at least 240 MPa (ASTM A370), and hardness ranges from 120 to 180 HBW (ISO 6506-1). Surface treatment typically involves hot-dip galvanizing with a coating thickness of 8–12 μm (ISO 1461). Thread tolerances are 6g–6H (ISO 965-1) to ensure interchangeability. Weight varies from 0.5 to 3.5 kg depending on size and material. These fittings are designed to transfer tension, compression, or shear forces from the bracing element to the connected structure, featuring threaded connections, clevis ends, eye bolts, or flange plates for adjustment and secure fastening. Proper selection requires verifying model-specific values and standards with the legal manufacturer or supplier, as the listed parameters are reference ranges for directory purposes. The fittings must be inspected regularly for signs of wear, corrosion, or deformation, and replaced if they fail to maintain structural integrity. They are not certified for any specific application unless explicitly stated by the manufacturer.
Working Principle
End connection fittings work by providing a mechanical interface that transfers tension, compression, or shear forces from the bracing element to the connected structure. They typically incorporate features like threaded connections, clevis ends, eye bolts, or flange plates that allow for adjustment, secure fastening, and proper load distribution. The fittings are designed to match the specific connection requirements of the bracing system while maintaining structural integrity. The mechanical interface ensures that loads are transmitted efficiently, and the design accommodates installation tolerances and movement, preventing stress concentrations and premature failure.
Common Materials
Carbon steel, Stainless steel, Alloy steel
Technical Parameters
ParameterTypical rangeNotes & selection driver
Nominal SizeDN15–DN100 DNMatches pipe outer diameterISO 6708
Temperature Range-20–80 °COutside range, seal integrity may fail
Tensile Strength≥450 MPaMinimum for structural applicationsASTM A370
Yield Strength≥240 MPaEnsures no permanent deformationASTM A370
Hardness120–180 HBWBalance between strength and machinabilityISO 6506-1
Surface Treatment8–12 μmHot-dip galvanized coating thicknessISO 1461
Thread Tolerance6g–6HEnsures interchangeabilityISO 965-1
Weight0.5–3.5 kgVaries with size and material
Material GradeQ235–Q345Carbon steel for structural useGB/T 700

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM
  • Connection Body Part
    Main structural element that provides the connection interface
    Material: steel
  • Threaded End Part
    Threaded portion for screw-type connections to bracing elements
    Material: steel
  • Mounting Plate/Flange Part
    Flat surface for bolted connections to structural endpoints
    Material: steel
  • Locking Nut Part
    Secures the connection and prevents loosening under vibration or load
    Material: steel

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for End Connection Fittings.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Up to 300 psi (20.7 bar)
other spec: Flow Rate: 0-500 GPM (0-31.5 L/s), Slurry Concentration: ≤30% solids by weight
temperature: -40°C to 150°C
Media Compatibility
✓ Potable Water Systems ✓ Industrial Process Fluids ✓ Mild Chemical Solutions
Unsuitable: Highly Corrosive Environments (e.g., concentrated acids, chlorides)
Sizing Data Required
  • Pipe/Component Outer Diameter (OD)
  • System Operating Pressure
  • Bracing Load Requirements (axial/transverse)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Thread galling and seizing
Cause: Improper installation torque leading to metal-to-metal contact without adequate lubrication, often exacerbated by dissimilar metals or repeated assembly/disassembly cycles.
Vibration-induced loosening and fatigue cracking
Cause: Inadequate torque retention under dynamic loads, improper thread engagement, or lack of locking mechanisms in high-vibration environments.
Maintenance Indicators
  • Visible fluid seepage or weeping around connection threads during pressure testing or operation
  • Audible hissing or whistling sounds indicating gas/fluid leakage under pressure
Engineering Tips
  • Apply manufacturer-recommended thread lubricants and torque sequences using calibrated tools to ensure proper preload without damaging threads
  • Implement regular torque audits and vibration monitoring on critical connections, and consider using prevailing torque fittings or secondary locking devices in high-cycle applications

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
ISO 4144:2009 (Pipe threads for pressure-tight joints) ANSI/ASME B16.11:2016 (Forged Fittings, Socket-Welding and Threaded) DIN 2353:2016 (Tube fittings with 24° cone)

Quoted from the published standard.

Manufacturing Precision
  • Bore diameter: +/-0.02mm
  • Flatness of sealing surfaces: 0.1mm
Quality Inspection
  • Dye Penetrant Test for surface defects
  • Hydrostatic Pressure Test for leak tightness

Manufacturers of End Connection Fittings

1 company lists this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

JP
Shenzhen, Guangdong, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “End Fittings”
View source page ↗ jpgasspring.com · checked 2026-09-06

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

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Frequently Asked Questions

What materials are end connection fittings available in?

According to the directory, end connection fittings are available in carbon steel, stainless steel, and alloy steel. For carbon steel, material grades such as Q235–Q345 are referenced per GB/T 700. Always confirm the specific material grade with the manufacturer for your application.

What are the typical size and pressure ranges?

The nominal size range is DN15 to DN100 per ISO 6708, and the operating pressure range is 1.0 to 1.6 MPa. These are reference ranges; the actual values for a specific fitting must be verified with the supplier.

How do I ensure the fittings meet my structural requirements?

Check the tensile strength (≥450 MPa) and yield strength (≥240 MPa) per ASTM A370, and hardness (120–180 HBW) per ISO 6506-1. Also consider the temperature range (-20°C to 80°C) and thread tolerance (6g–6H per ISO 965-1). Always verify these parameters with the manufacturer for your specific model.

What maintenance is required for these fittings?

Regularly inspect for corrosion, wear, or deformation, especially if the surface treatment (hot-dip galvanizing, 8–12 μm per ISO 1461) is damaged. Ensure threaded connections are properly torqued and lubricated as needed. Replace fittings if they show signs of permanent deformation or cracking.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification
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