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Galvanized Pipe Flange Base – 1-1/4″ (1.660″ OD) Fitting

$29.24 on Amazon.com (as of October 16, 2026, 2:10 AM EST) View details ↗

The **eoere 1-1/4″ Galvanized Pipe Flange Base** is a heavy-duty fitting designed to securely attach structural pipe to flat surfaces like walls or floors. Made from **ductile cast iron** with a **hot-dip galvanized finish**, this fitting offers superior corrosion resistance for long-term durability in outdoor or high-moisture environments. The **pre-drilled bolt pattern** and **set screw** ensure a stable, vibration-resistant connection, making it ideal for construction, farming, or industrial applications.

**Critical Note:** This fitting is designed for **1-1/4″ nominal pipe (1.660″ actual OD)**. Always verify your pipe’s outside diameter before purchasing—galvanized steel pipe sizes often differ from nominal measurements. The **3/16″ wall thickness** and **5/16″ base thickness** provide structural integrity, while the **2-1/8″ bolt pattern** accommodates standard hardware. Includes a **M12x16mm set screw** for additional security. Perfect for DIY projects, structural reinforcement, or commercial installations where reliability matters.

Pipe Compatibility1-1/4″ nominal (1.660″ actual OD)
MaterialDuctile Cast Iron, Hot-Dip Galvanized
Wall Thickness3/16″
Base Thickness5/16″
Bolt Pattern2-1/8″ (pre-drilled for 5/16″ bolts)
Set Screw SizeM12x16mm
Why does the product specify 1-1/4″ nominal but list 1.660″ OD? Does this fit my pipe?
Galvanized steel pipe uses **nominal sizing** (1-1/4″) for convenience, but the actual outside diameter is **1.660″**. Always measure your pipe’s OD before ordering—if it matches, this flange will fit securely.
Can this flange be used for horizontal pipe installations (e.g., handrails)?
Yes, this flange is designed for **flat-surface mounting** (walls, floors, or horizontal beams) and includes a **set screw (M12x16mm)** for added stability in load-bearing applications.
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