This set of four optical breadboard stage plate bases provides a stable, precision platform for mounting optical components and assemblies in laboratory and research environments. Each base is machined from solid aluminum and finished with a matte black anodized coating to minimize unwanted reflections. The tapped hole grid accommodates standard optical accessories, while counterbored corner holes enable secure integration into larger optical table systems.
Technical Specifications
• Material: Solid aluminum
• Finish: Matte black anodized (low reflective)
• Surface flatness: ±0.02 inches; ±0.006 inches over 1 ft²; ±0.127 mm (0.005 inches)
• Standard mounting hole pattern: 1/4-20 tapped holes on 1-inch grid or M6 tapped holes on 25 mm grid
• High-density hole spacing: 0.4 inches or 0.5 inches (10.0 mm or 12.5 mm) centers
• Threaded hole options: 4-40 (M3), 8-32 (M4), 1/4-20 (M6) taps
• Edge border to first hole: 0.5 inches (12.5 mm metric equivalent) on all sides
• Counterbored mounting holes: Four 1/4″ holes at corners, inset 0.5″ from edge; optional configuration with holes inset 1″ from each edge; center hole available on plates 18″ (450 mm) or wider
• Thickness options: 0.5 inches, 0.25 inches (7 mm), 0.5 inches (13 mm), 0.75 inches (20 mm), 1 inch (25 mm), 12.7 mm, 19.05 mm
• Non-magnetic: Yes
• Weight example: 28 lb (24 × 24 inch plate, 0.5 inch thick)
– Key Features
• Precision-machined surface with repeatable flatness across designated areas
• Low-reflection finish suitable for precision optical work
• Multiple tapping options and hole spacing configurations
• Through-tapped and counterbored hole design for flexible component mounting
– Typical Applications
• Optical subsystem assembly and integration
• Laboratory experimental setups
• Research-grade optical bench work
– Compatibility & Integration
Mounting hole patterns align with standard optical table specifications. Counterbored holes accommodate attachment to optical tables, mounting feet, or post assemblies. Compatible with a wide range of breadboard accessories for system integration.















