Keyhole stud

Partner with Frigate for precision-engineered keyhole studs manufactured to strict aerospace standards for high-stress structural applications. Our streamlined production ensures optimized weight-to-strength ratios, absolute structural integrity, and reliable lead times for global aerospace supply chains.

Material Grades

Titanium (Ti-6Al-4V), Inconel 718, Alloy Steel (4140/4340), Aerospace Grade Aluminum (7075-T6)

Thread Profiles

UNJ / UNJF high-fatigue threads, Class 3A fit precision tolerance

Tensile Strength

Up to 160,000 psi – 220,000 psi (dependent on material selection)

Surface Finish

Cadmium plating, Anodizing, Passivation, or Zinc-Nickel per AMS specifications

Flange Style

Standard Hex, Double Hex (12-point), or Flush-mount countersunk

Order Type

Quantity Range

Lead Time*

Sample & First Article

1 – 50 Units

2 – 3 Weeks

Low Volume / Bridge Production

51 – 500 Units

4 – 6 Weeks

High-Volume Contract

501 – 5,000+ Units

8 – 12 Weeks (Scheduled releases available)

*Listed timelines are indicative averages. Final schedules depend on raw material availability, specific aerospace plating requirements, and capacity at order placement.

Product Description

Frigate’s high-performance keyhole studs are engineered to deliver robust, vibration-resistant interlocking connections within critical aerospace structural assemblies. These specialized fasteners distribute heavy shear and tensile loads uniformly, mitigating stress concentrations and streamlining complex maintenance workflows.

Shank Tolerances

+/- 0.0005 inches (+/- 0.0127 mm) friction-fit precision

Hardness Rating

36 to 45 HRC (heat-treated per AMS-H-6875)

Nondestructive Testing (NDT)

MPI (Magnetic Particle Inspection) / FPI (Fluorescent Penetrant Inspection) certified

Head Configuration

Integrated keyhole interlocking locking-flange mechanism

Fatigue Life Cycle

Tested up to 100,000 cycles under cyclic tension-tension loading

Operating Temperature Range

-250°C to 650°C (Inconel configurations)

Shear Strength

Minimum 95,000 psi ultimate shear resistance

Corrosion Resistance

Salt spray resistance up to 96 hours to 500 hours per ASTM B117

Quality Certifications

AS9100 Rev D, ISO 9001:2015, and Nadcap accredited manufacturing

Traceability

Full chemical and physical mill test report (MTR) tracking from billet to finished stud

Technical Advantages

Our keyhole studs feature optimized, anti-rotation geometries that significantly reduce component wear and eliminate fastener loosening under severe harmonic vibrations. By utilizing advanced aerospace alloys and precision-ground threads, Frigate ensures an exceptional strength-to-weight ratio for critical flight-hardware applications.

Let's Get Started

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Industry Applications

Fuselage Structural Framing

Secures major high-stress bulkhead extensions and frame segments, ensuring structural rigidity while maintaining tight weight-budget compliance under aerodynamic load shifts.

Engine Nacelles & Pylons

Provides high-temperature, fatigue-resistant fastening for structural engine mounts and pylons, dampening continuous, high-frequency core engine vibrations safely.

Landing Gear Assemblies

Integrates into high-impact structural links and shock struts, delivering the exceptional shear resistance needed to withstand repetitive landing stresses.

Interior Cabin Modular Seating

Anchors main cabin seating tracks and modular galley monuments to the floor grid, satisfying strict crashworthiness and quick-release turnaround demands.

Wing Box & Control Surface Joints

Reinforces wing-to-fuselage attachment zones and control flap actuators, offering long-term resistance against cyclic aerodynamic bending and twisting.

Avionics & Radar Enclosures

Mounts heavy radar arrays and critical flight-control avionics bays securely within unpressurized zones, preventing galvanic corrosion and vibration failure.

Frigate Approved Quality Management System

At Frigate, quality is built into every stage of manufacturing. Our approved Quality Management System ensures that every material component.

Incoming Material Checking

Before production begins, all incoming materials are checked against specifications, drawings, and supplier documents.

In-Process Inspection

Quality is monitored during manufacturing to prevent defects and maintain process consistency.

Final Dimensional Checking

Finished parts are inspected before dispatch to confirm compliance with customer drawings and tolerances.

Packaging Control

Finished components are packed safely to prevent damage during handling and transportation.

Incoming Material Checking

In-Process Inspection

Final Dimensional Checking

Packaging Control

Quality Document

To help buyers evaluate our quality systems, we provide sample documents that reflect our inspection and reporting standards.

How We Delivered

Complex geometries engineered solutions that move businesses forward.

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Having Doubts? Our FAQ

What materials are standard for Frigate's aerospace keyhole studs?

We manufacture keyhole studs using high-strength Titanium (Ti-6Al-4V), Inconel 718 for high-temperature applications, and heat-treated alloy steels or aerospace-grade aluminum. Custom material configurations can be processed upon reviewing your engineering drawings.

Can Frigate provide full AS9100 traceability and manufacturing documentation?

Yes. Every shipment includes comprehensive documentation packages, including First Article Inspection Reports (FAIR) per AS9102, chemical/physical mill test reports, heat treatment logs, and plating certificates.

How do keyhole studs improve over traditional aerospace fasteners?

The unique keyhole geometry offers an interlocking mechanism that inherently prevents rotation and localized stress concentrations. This allows for faster assembly, exceptional vibration dampening, and reduced wear on mating composite or metallic panels.

Are secondary surface treatments done in-house or by accredited vendors?

All critical finishing processes such as cadmium plating, anodizing, passivation, and non-destructive testing (NDT) are performed under strict Nadcap-accredited or AS9100-certified guidelines to ensure flight-ready compliance.

What is Frigate’s capability for custom dimensions and thread pitches?

We offer extensive customization for thread pitches (including UNJ/UNJF profiles), length variants, and flange geometries. Our engineering team collaborates directly with your procurement teams to adapt the designs to your Total Cost of Ownership (TCO) targets.

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LOCATIONS

Registered Office

10-A, First Floor, V.V Complex, Prakash Nagar, Thiruverumbur, Trichy-620013, Tamil Nadu, India.

Operations Office

9/1, Poonthottam Nagar, Ramanandha Nagar, Saravanampatti, Coimbatore-641035, Tamil Nadu, India. ㅤ

Other Locations

GENERAL ENQUIRIES

LOCATIONS

Registered Office

10-A, First Floor, V.V Complex, Prakash Nagar, Thiruverumbur, Trichy-620013, Tamil Nadu, India.

Components Built for Critical Performance

Engineered Products for Critical Applications

Keyhole stud

Order Type

Quantity Range

Lead Time*

Product Description

Shank Tolerances

Hardness Rating

Nondestructive Testing (NDT)

Head Configuration

Fatigue Life Cycle

Operating Temperature Range

Shear Strength

Corrosion Resistance

Quality Certifications

Traceability

Technical Advantages

Let's Get Started

Industry Applications

Frigate Approved Quality Management System

Quality Document

How We Delivered

Having Doubts? Our FAQ

We'd love to Manufacture for you!

LOCATIONS

Registered Office

Operations Office

Other Locations

GENERAL ENQUIRIES

LOCATIONS

Registered Office

Other Locations

GENERAL ENQUIRIES

Get Your Quote Now

Keyhole stud

Get Latest Price

Keyhole stud

Get Latest Price