Round Post Caps

Round post caps for 2-3/8” and 2-7/8” round post available in 3-1/2”, 5-1/2”, 12”, 18" and 24" slots for flat and extruded sign blades. Fasteners come pre-installed, ready to mount.

More Information

Bracket Size Selection Guide

Bracket Slot Length Recommended Sign Size Blade Type Compatibility
3-1/2″ Up to 18″ Flat & Extruded
4-1/2″ 18″ to 30″ Extruded
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 T-Handle tool 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.

Real World Applications

Round post cap securely holding a flat street name sign

Round post cap securely holding extruded street name signs, with a cross piece

Round post cap with threaded hole used in conjunction with separator to hold two flat signs