#9040 Metric Hexagon Penetration Gage
The #9040 Metric Hexagon Penetration Gage is a precision inspection instrument designed to verify internal hex socket depth and functional driver engagement in metric socket head cap screws, shoulder screws, and set screws.
Manufactured in accordance with ASME/ANSI B18.3.6M and compatible with ISO, DIN, JIS, BS, and GB standards, the 9040 Series confirms that internal hex recess depth meets specified penetration and engagement requirements to ensure proper torque transfer and prevent driver cam-out or stripping.
Designed for manufacturing, quality control, and incoming inspection environments, this gage verifies:
• Minimum hex socket penetration depth• Proper driver engagement geometry• Functional socket conformity• Metric production and receiving inspection compliance
Available with inch or metric dial indicators, with optional SPC-compatible digital indicators upon request.
Each hex probe is calibrated to specified metric dimensions and tolerances and is traceable to the National Institute of Standards and Technology (NIST).
Ideal for:
• Metric socket head cap screw manufacturing• Global automotive and aerospace programs• ISO-certified production environments• International fastener suppliers• High-volume manufacturing validation
The 9040 Series provides repeatable, production-ready metric hex socket penetration verification.
1) Standard References
Configuration: Internal Metric Hexagon Penetration Inspection GageStandard References: ASME / ANSI B18.3.6MInternational Compatibility: ISO, DIN, JIS, BS, GBDrive Type: Internal HexagonCalibration: NIST TraceableSystem Compatibility: ISO 9001 Quality Systems
2) Inspection Function
The 9040 Series verifies:
• Minimum metric hex recess depth• Proper Allen key engagement• Functional torque transfer capability• Production and receiving inspection compliance
This gage measures functional penetration depth and engagement performance, not across-flats dimensional inspection.
3) Materials & Construction
Universal’s 9040 Series gages feature:
• Hardened and precision ground hex probes• Thermally stabilized components• Surface-treated wear-resistant finishes• Knurled body for secure handling• High-accuracy dial or digital indicators
Designed for repeated use in demanding production environments.
4) Ordering Information
When ordering, specify:
• Metric hex size• Dial or digital indicator• Certification package if required
All probe sizes are calibrated to specified metric dimensions and tolerances and are traceable to NIST standards.
