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GAGING & INSPECTION

Universal Fastener Gages provides inspection systems designed specifically for verifying critical dimensional characteristics in threaded fasteners used in regulated manufacturing environments.

Our gaging systems are engineered to measure:

  • Pitch Diameter
  • Functional Size
  • Thread Engagement
  • Recess Penetration
  • Runout
  • Concentricity
  • Fastener Length

Fastener Inspection Gage Categories

Digital Fastener Length Gages

SPC-capable digital systems for measuring fastener length with repeatable alignment.

Concentricity Gage Systems

Runout and concentricity inspection for aerospace and precision fastener applications.

3-Point External Thread Gages

Variable reading thread gages for pitch diameter, functional size, and out-of-roundness.

Internal Thread Gages

Systems for measuring internal thread pitch diameter and functional size.

Driver Bit Penetration Gages

Inspection gages for recess depth and driver bit penetration verification.

Key Features

• Self-contained 120° alignment system

• Lower fixed support roll design

• No setting templates required

• Compact inspection frame footprint

• Interchangeable gage roll system

• Optional Titanium-Nitride (TiN) roll coating

• Constant upper roll measuring force

• SPC data collection compatible

Gage roll contacting thread

Indicator measuring pitch diameter

Gage mounted on stand measuring bolt

Gage Range

The #12000 3-POINT TRI-LOBE Thread System covers a size range from #4 (3mm) to 1-1/2” (40mm).

Adjustment Frame 1

#4 (3mm) to 3/4” (20mm)

Adjustment Frame 2

13/16” (22mm) to 1-1/2” (40mm)

Gage Performance

Thread roll sets are easily changed from one size to another.

  • Lower rolls remain in fixed position to support the workpiece while the upper roll arm assembly applies consistent measuring force.
  • The indicator is actuated by thread contact providing accurate digital or mechanical measurement readings.

Gage Performance

Thread roll sets are easily changed from one size to another. Lower rolls remain in fixed position to support the workpiece while the upper roll arm assembly applies consistent measuring force. The indicator is actuated by thread contact providing accurate digital or mechanical measurement readings.

SPC Compatibility

Universal Variable Reading Thread Gages provide an ideal system for real-time process monitoring and SPC data acquisition. Operators can make adjustments at the machine before tolerance limits are exceeded, reducing:

  • Scrap
  • Sorting
  • Rework
  • Remanufacturing

What's Included

  • 3-POINT TRI-LOBE Gage Frame
  • Inspection Stand
  • Indicator Mount
  • One Set of Pitch Diameter Rolls
  • One Set of Functional Diameter Rolls

Additional roll sets available separately.

Applications

Used for inspection of:

  • Externally Threaded Fasteners
  • Aerospace Bolts
  • Automotive Threaded Components
  • Precision Machined Threaded Parts
  • Medical Fastener Products
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