Precision Penetration, GO / NO-GO, and Functional Recess Verification Systems
Recess & Driver Inspection Gages
Universal Fastener Gages designs and manufactures advanced recess and driver inspection systems for verifying fastener engagement depth, geometry, and functional fit. Our gages support production, receiving, and final inspection environments across aerospace, medical, automotive, and industrial fastener manufacturing.
Complete Recess and Driver Verification Solutions
Recess geometry directly impacts torque transfer, cam-out resistance, and long-term assembly reliability. Our inspection systems verify critical characteristics including penetration depth, GO and NO-GO engagement, fallaway limits, driver fit, and final inspection compliance.
Whether validating 6-lobe, tamper-resistant, Phillips, Pozi, hexagon, square, or specialty drive styles, Universal Fastener Gages provides repeatable, production-ready inspection solutions engineered for consistency and durability.
Drive Style Families
6-Lobe TX Gages
Penetration, GO, NO-GO, final inspection, and driver bit verification systems for standard 6-lobe fasteners.
ISO Hexalobular Gages
Metric hexalobular penetration and GO/NO-GO systems designed for international fastener standards.
TXP Tamper Resistant Gages
Inspection systems for tamper-resistant and security 6-lobe drive styles.
Phillips Type 1 Gages
Penetration, master plug, ring, and test block inspection systems for Phillips drive fasteners.
Pozi Type 1A Gages
Penetration and GO/NO-GO verification systems for Pozi drive applications.
Square & Robertson Gages
Penetration, ring, and master plug inspection systems for square and Robertson style recesses.
Hexagon & 12-Point Gages
Inch, metric, and ISO hexagon plus 12-point inspection systems for internal hex drive fasteners.
Offset Cruciform, Tri-Slot & Specialty Drives
Specialized inspection systems for non-standard and specialty drive geometries.
Production Stations & Fixtures
High-volume penetration stations and driver verification fixtures designed for production environments.
Inspection Methods Within This System
Penetration Depth Verification
GO Penetration Gages
NO-GO Fallaway Gages
GO / NO-GO Combination Gages
Final Inspection Gages
Receiving Inspection Gages
Driver Bit & Key Verification Gages
Master Plug and Ring Gages
Test Block Systems
Manufactured in USA
Engineered for Precision and Production Environments
- Hardened tool steel construction for maximum tool life
- Fully serialized and traceable for quality accountability
- Calibration documentation available with every system
- Designed specifically for operator-to-operator repeatability
- Directly compatible with SPC data collection programs
- Built and verified to applicable ANSI and ISO standards
Which Recess Gage Do I Need?
If verifying minimum recess depth → Penetration Gage
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If ensuring recess does not exceed maximum depth → NO-GO Fallaway
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If needing dual functional inspection → GO / NO-GO Combination
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If auditing finished production lots → Final Inspection Gage
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If verifying driver tool compatibility → Driver Bit & Key Gages
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