Universal Post Caps

Universal post caps fit on both round and square posts, thus offering increased flexibility. Available in 5 1/2", 12", 18" and 24" slots for both flat and extruded blades. Mounting hardware comes installed on brackets saving time and hassle.

More Information
Adaptable
Compatible with Round & Square Posts
Multiple Sizes
5-1/2″ to 24″ slot lengths
Pre-Installed Hardware
Ready to mount
Both Blade Types
Flat and Extruded compatible

Bottom – Inside View

How Universal Cap fits on Round or Square Posts

Benefits of MD’s Universal Post Caps

  • Reduced Inventory: Stock one cap for both round and square posts.
  • Better Cash Flow: Less inventory means more efficient use of capital.
  • Adaptability: Easily adjust to changing project requirements.
  • Added Value: No extra cost for the convenience.

Bracket Size Selection Guide

Bracket Slot Length Recommended Sign Size Blade Type Compatibility
5-1/2″ 18″ to 30″ Flat & Extruded
12″ 30″ to 42″ Flat & Extruded
18″ 42″ to 54″ Flat & Extruded
24″ 54″ and above Flat & Extruded

Technical Specifications & Compatibility

Flat vs. Extruded Blade Compatibility

Flat blades: Standard thickness signs suitable for most applications. Lighter weight and cost-effective for general street signage.
Extruded Blades: Thicker, heavy-duty signs with enhanced durability. Recommended for high-wind areas and premium installations.

Installation Requirements

Hardware needed:

  • Standard set screws (included with pre-drilled and tapped brackets)
  • Standard Allen Key for installation
  • Optional: Vandal-proof set screws with specialized T-Handle tool for enhanced security
All mounting hardware and tools are available in our Sign Mounting Fasteners section.

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Real World Applications

Universal Post Cap holds the sign on a Square Post, used in conjunction with a cross piece

Universal Post Cap used in conjunction with fixed and adjustable cross pieces

Universal Post Cap on a Square Post, with multiple signs held by cross pieces