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Hexagon & 12-Point Handheld Inspection Gages

Socket and Multi-Point Drive Inspection for Production and QA

Universal Fastener Gages manufactures handheld inspection tools for inch and metric hexagon socket and 12-point drive systems. These gages are designed to verify recess depth, dimensional compliance, and pass / fail acceptance in high-volume manufacturing environments. Our handheld gages provide fast, repeatable inspection without requiring bench-mounted systems.

Hexagon Penetration Gages

#9025 Inch Hexagon Penetration Gages — Used to verify proper socket depth and driver entry for inch hex systems.

#9040 Metric Hexagon Penetration Gages — Confirms recess depth for metric hex socket fasteners.

Penetration gages ensure the hex recess supports proper tool engagement and torque transmission.

Hexagon GO / NO-GO Gages

#9055 Inch Hexagon GO NO-GO Gages B18.3 — Pass / fail inspection tools for inch hex socket systems.

#9075 Metric Hexagon GO NO-GO Gages B18.3M — Dimensional compliance inspection for metric hex fasteners.

#9076 ISO Metric Hexagon GO NO-GO Gages — Designed for ISO metric hexagon socket inspection programs.

GO / NO-GO gages provide objective acceptance criteria in production and receiving inspection environments.

12-Point Inspection Gages

#9052 12-Point Penetration Gages — Verifies proper depth and engagement of 12-point recess systems.

#9053 12-Point GO NO-GO Gages — Provides pass / fail dimensional inspection for 12-point fasteners.

These gages are commonly used in aerospace and high-strength fastener applications.

Inspection Applications

Hexagon and 12-point handheld gages are commonly used for:

  • In-process inspection
  • Receiving inspection
  • Final quality validation
  • Tool compatibility verification
  • High-strength structural fastener programs

Industries include aerospace, automotive, heavy equipment, industrial manufacturing, and defense applications.

Need Help Selecting the Correct Hexagon or 12-Point Gage?

  • If you need to verify recess depth, choose a Penetration Gage.
  • If you need objective pass / fail inspection, choose a GO NO-GO Gage.
  • If you need ISO metric compliance, select the ISO Metric GO NO-GO Gage.

Send us your print or fastener sample and our engineering team will recommend the correct handheld inspection solution.

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