[28490] 48BC - Heavy-Duty Rect. Base Flange
| Pipe Size: 1-1/2" IPS |
Product Description
The Hollaender Speed-Rail® 48BC – Heavy Duty Rectangular Base Flange is a reinforced mounting flange designed to provide a secure, load-bearing attachment point for vertical pipes or posts. Its heavy-duty rectangular base offers increased surface area and stability compared to round flanges, making it suitable for higher-load or high-traffic installations. The slip-on design allows the pipe to be inserted directly into the barrel and locked in place using zinc-plated set screws—no welding or threading required.
Constructed from durable aluminum-magnesium alloy, the 48BC provides long-term corrosion resistance for both interior and exterior applications. It is commonly used when a stronger or broader mounting footprint is required, such as at stair landings, deck surfaces, platforms, or industrial environments. Always verify the correct IPS pipe size before ordering.
Key Features
- Heavy-duty rectangular base flange for added stability
- Designed to support vertical pipes, posts, or structural members
- Slip-on installation—no welding or threading required
- High-strength aluminum-magnesium alloy construction
- Secured with zinc-plated set screws for reliable engagement
- Compatible with Hollaender Speed-Rail® modular systems
Common Applications
- Mounting posts for guardrails, handrails, and safety rails
- Decks, platforms, mezzanines, or industrial support surfaces
- Architectural pipe frameworks needing enhanced base strength
- Equipment enclosures or barriers with heavier load requirements
- General structural applications requiring a reinforced mounting flange
Specs / Compatibility
- Fitting Type: Heavy Duty Rectangular Base Flange (48BC)
- Material: Aluminum-Magnesium Alloy 535
- Finish: Natural Aluminum-Magnesium
- Mounting: Rectangular base for enhanced load distribution
- Connection: Slip-on mechanical joint with zinc-plated set screws
- Note: Always verify proper IPS pipe size before ordering
What’s Included / Hardware
- One Hollaender Speed-Rail® 48BC Heavy Duty Rectangular Base Flange
- Includes zinc-plated set screws
Care & Maintenance
Clean periodically with mild soap and water. Inspect and retighten set screws as needed. Avoid abrasive cleaners that may compromise the aluminum-magnesium finish.
Shipping & Availability
Ships via UPS or FedEx. Orders typically process quickly. Confirm the correct IPS pipe size prior to ordering to ensure proper fit.
Need Help?
Need help choosing the right part? Visit our Contact Us page or call to speak with a specialist.
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| Material/Finish | Pipe Size | SKU | MFR Part No | Description | Price | Qty | Unit | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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1-1/2" IPS | 28490 Ships within 24-48 hours, Local pickup available | 48BC-8 |
[28490] 48BC - Heavy-Duty Rect. Base Flange (Aluminum Magnesium)
Spec Sheet
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$ 58.06 |
EACH |
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Product Description
The Hollaender Speed-Rail® 48BC – Heavy Duty Rectangular Base Flange is a reinforced mounting flange designed to provide a secure, load-bearing attachment point for vertical pipes or posts. Its heavy-duty rectangular base offers increased surface area and stability compared to round flanges, making it suitable for higher-load or high-traffic installations. The slip-on design allows the pipe to be inserted directly into the barrel and locked in place using zinc-plated set screws—no welding or threading required.
Constructed from durable aluminum-magnesium alloy, the 48BC provides long-term corrosion resistance for both interior and exterior applications. It is commonly used when a stronger or broader mounting footprint is required, such as at stair landings, deck surfaces, platforms, or industrial environments. Always verify the correct IPS pipe size before ordering.
Key Features
- Heavy-duty rectangular base flange for added stability
- Designed to support vertical pipes, posts, or structural members
- Slip-on installation—no welding or threading required
- High-strength aluminum-magnesium alloy construction
- Secured with zinc-plated set screws for reliable engagement
- Compatible with Hollaender Speed-Rail® modular systems
Common Applications
- Mounting posts for guardrails, handrails, and safety rails
- Decks, platforms, mezzanines, or industrial support surfaces
- Architectural pipe frameworks needing enhanced base strength
- Equipment enclosures or barriers with heavier load requirements
- General structural applications requiring a reinforced mounting flange
Specs / Compatibility
- Fitting Type: Heavy Duty Rectangular Base Flange (48BC)
- Material: Aluminum-Magnesium Alloy 535
- Finish: Natural Aluminum-Magnesium
- Mounting: Rectangular base for enhanced load distribution
- Connection: Slip-on mechanical joint with zinc-plated set screws
- Note: Always verify proper IPS pipe size before ordering
What’s Included / Hardware
- One Hollaender Speed-Rail® 48BC Heavy Duty Rectangular Base Flange
- Includes zinc-plated set screws
Care & Maintenance
Clean periodically with mild soap and water. Inspect and retighten set screws as needed. Avoid abrasive cleaners that may compromise the aluminum-magnesium finish.
Shipping & Availability
Ships via UPS or FedEx. Orders typically process quickly. Confirm the correct IPS pipe size prior to ordering to ensure proper fit.
Need Help?
Need help choosing the right part? Visit our Contact Us page or call to speak with a specialist.

