#9450 Universal Protrusion Height Gage System
The #9450 Protrusion Height Gage System is a modular fastener measurement platform designed to evaluate protrusion height and multiple dimensional attributes of screws and bolts.
The system may be configured to measure:
• Head heights
• Body diameters
• Across flats dimensions
• Across corners
• Fastener lengths
• SEMS head height and overall length
Designed in accordance with ASME B18.6.4 and ASME B18.6.5M standards, the 9450 Series supports interchangeable gaging plates offered in both inch and metric formats.
Certified hole sizes conform to ANSI, ASME, ISO, JIS, DIN, BS, and GB standards.
All gaging plates are manufactured from stainless steel, heat treated, and thermally stabilized to ensure long-term dimensional stability and wear resistance.
The 9450 platform is ideal for:
• Fastener manufacturers
• Automotive suppliers
• Aerospace manufacturers
• Industrial assembly operations
• Quality control laboratories
• Incoming inspection departments
The modular design allows quick interchange of gaging plates to support multiple fastener standards and configurations.
PRIMARY SYSTEMS
9450-A1
Universal Protrusion Height Gage
9450-B2
Universal Protrusion Height Gage with Detent Stop
INTERCHANGEABLE GAGING PLATES
9450-01
ANSI / ASME 82° Gaging Plate#2 through 3/8 inch
9450-02
ANSI / ASME 100° Gaging Plate#2 through 3/8 inch
9450-03
ISO 90° Gaging PlateM2 through M10
9450-04
Inch Bolt Gaging Plate#4 through 3/4 inch
9450-05
Metric Bolt Gaging PlateM3 through M20
9450-06
SEMS Check Plate for Measuring Head Heights and Lengths
INDICATOR
575-123
Digital IndicatorRange: .50 inch / 12.7 mmResolution: .0005 inch / 0.01 mm
1) Standard Compliance
ASME B18.6.4
ASME B18.6.5M
ANSI
ISO
JIS
DIN
BS
GB
Inspection Type: Protrusion Height & Dimensional Verification
2) Inspection Function
The 9450 Series is used to:
• Measure fastener head protrusion
• Verify head height compliance
• Confirm bolt dimensional conformity
• Inspect SEMS fasteners
• Validate dimensional consistency across multiple standards
The detent stop option provides repeatable positioning for high-volume inspection environments.
3) Materials & Construction
Universal’s 9450 Protrusion Gage System features:
• Stainless steel gaging plates
• Heat treated and thermally stabilized components
• Precision ground measurement surfaces
• Rigid steel base
• Industrial-grade digital indicator mounting
• Interchangeable modular design
Engineered for laboratory and production floor durability.
4) Calibration & Traceability
Available with:
• NIST traceable calibration
• Long form dimensional certificates
• ISO/IEC 17025 accredited calibration options
