48 - Heavy-Duty Base Flange (4-Hole)
Product Description
The Hollaender Speed-Rail® 48 – Heavy Duty Base Flange (4-Hole) is a high-strength mounting flange designed to provide a secure, load-bearing attachment point for vertical pipes and posts. The heavy-duty construction and four-hole mounting plate offer superior stability compared to standard base flanges, making the 48 ideal for guardrails, handrails, safety barriers, and industrial framing where a robust structural connection is required.
The slip-on barrel accepts the pipe directly and is locked in place using zinc-plated set screws—eliminating the need for welding or threading. Manufactured from corrosion-resistant aluminum-magnesium alloy, the 48 Base Flange is suitable for both interior and exterior installations. Always verify the correct IPS pipe size before ordering to ensure proper fit and performance.
Key Features
- Heavy-duty base flange for maximum support and stability
- Four-hole mounting pattern provides strong, secure surface attachment
- Ideal for structural posts in guardrails, industrial railings, and equipment enclosures
- Slip-on installation—no welding or threading required
- Corrosion-resistant aluminum-magnesium alloy construction
- Secured with zinc-plated set screws for reliable engagement
- Compatible with Hollaender Speed-Rail® modular pipe systems
Common Applications
- Guardrail and handrail posts needing heavy-duty support
- Industrial safety rails and barrier systems
- Architectural pipe framing requiring secure base mounting
- Machine guarding and enclosure framing
- Any installation requiring a strong base connection for vertical pipe members
Specs / Compatibility
- Fitting Type: Heavy Duty Base Flange – 4-Hole (48)
- Material: Aluminum-Magnesium Alloy 535
- Finish: Natural Aluminum-Magnesium
- Mounting: Four-hole rectangular/square plate for surface attachment — consult chart for hole spacing
- Connection: Slip-on mechanical joint with zinc-plated set screws
- Note: Confirm proper IPS pipe size before ordering
What’s Included / Hardware
- One Hollaender Speed-Rail® 48 Heavy Duty Base Flange (4-Hole)
- Zinc-plated set screws included
- Note: Anchoring bolts for the mounting surface are not included
Care & Maintenance
Clean periodically with mild soap and water. Inspect and retighten set screws regularly. Avoid abrasive cleaners that could damage the aluminum-magnesium finish.
Shipping & Availability
Ships via UPS or FedEx with fast processing. Always verify the correct IPS pipe size to ensure proper fit and avoid return delays.
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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| Aluminum Magnesium | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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1-1/2" IPS | 28210 Ships within 24-48 hours, Local pickup available | 48-8 |
[28210] 48 - Heavy-Duty Base Flange (4-Hole) (Aluminum Magnesium, 1-1/2" IPS)
Spec Sheet
|
$ 47.13 |
EACH |
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2" IPS | 29220 Ships within 24-48 hours, Local pickup available | 48-9 |
[29220] 48 - Heavy-Duty Base Flange (4-Hole) (Aluminum Magnesium, 2" IPS)
Spec Sheet
|
$ 81.78 |
EACH |
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Product Description
The Hollaender Speed-Rail® 48 – Heavy Duty Base Flange (4-Hole) is a high-strength mounting flange designed to provide a secure, load-bearing attachment point for vertical pipes and posts. The heavy-duty construction and four-hole mounting plate offer superior stability compared to standard base flanges, making the 48 ideal for guardrails, handrails, safety barriers, and industrial framing where a robust structural connection is required.
The slip-on barrel accepts the pipe directly and is locked in place using zinc-plated set screws—eliminating the need for welding or threading. Manufactured from corrosion-resistant aluminum-magnesium alloy, the 48 Base Flange is suitable for both interior and exterior installations. Always verify the correct IPS pipe size before ordering to ensure proper fit and performance.
Key Features
- Heavy-duty base flange for maximum support and stability
- Four-hole mounting pattern provides strong, secure surface attachment
- Ideal for structural posts in guardrails, industrial railings, and equipment enclosures
- Slip-on installation—no welding or threading required
- Corrosion-resistant aluminum-magnesium alloy construction
- Secured with zinc-plated set screws for reliable engagement
- Compatible with Hollaender Speed-Rail® modular pipe systems
Common Applications
- Guardrail and handrail posts needing heavy-duty support
- Industrial safety rails and barrier systems
- Architectural pipe framing requiring secure base mounting
- Machine guarding and enclosure framing
- Any installation requiring a strong base connection for vertical pipe members
Specs / Compatibility
- Fitting Type: Heavy Duty Base Flange – 4-Hole (48)
- Material: Aluminum-Magnesium Alloy 535
- Finish: Natural Aluminum-Magnesium
- Mounting: Four-hole rectangular/square plate for surface attachment — consult chart for hole spacing
- Connection: Slip-on mechanical joint with zinc-plated set screws
- Note: Confirm proper IPS pipe size before ordering
What’s Included / Hardware
- One Hollaender Speed-Rail® 48 Heavy Duty Base Flange (4-Hole)
- Zinc-plated set screws included
- Note: Anchoring bolts for the mounting surface are not included
Care & Maintenance
Clean periodically with mild soap and water. Inspect and retighten set screws regularly. Avoid abrasive cleaners that could damage the aluminum-magnesium finish.
Shipping & Availability
Ships via UPS or FedEx with fast processing. Always verify the correct IPS pipe size to ensure proper fit and avoid return delays.
Need Help?
Need help choosing the right part? Visit our Contact Us page or call to speak with a specialist.

