AN3-6A Bolt – Cadmium Plated Steel, 3/16″, Undrilled
The AN3-6A is a high-strength alloy steel aircraft bolt manufactured to military (AN/NASM) standards, designed for use in structural and general-purpose fastening applications. Featuring a 3/16″ diameter (AN3) and undrilled shank (A suffix), it provides reliable clamping force and long-term durability.
The bolt is cadmium plated for corrosion resistance and consistent performance in demanding aviation environments. Manufactured in accordance with NASM6812 specification, it is widely used in certified aircraft, maintenance operations, and overhaul applications.
Key Features
- AN3 standard – 3/16″ diameter aircraft bolt
- Length: 3/4″ (AN3-6 designation)
- Undrilled shank (A suffix) – for applications not requiring safety wire
- Hex head design – standard aircraft tooling compatibility
- Cadmium plated alloy steel – corrosion-resistant finish
- High tensile and shear strength
- Manufactured to AN / NASM6812 standards
Typical Applications
- Aircraft structural assemblies
- Control linkages and brackets
- General airframe fastening
- Maintenance and overhaul applications
The AN3-6A bolt is commonly used across a wide range of aircraft including Cessna, Piper, Beechcraft, and experimental aircraft, making it a standard component for maintenance shops and aircraft owners. Commonly referred to as AN3 aircraft bolts, this size is widely used in general aviation maintenance and repair.
Used across Cessna, Piper, and Beechcraft aircraft fleets.
Understanding AN3-6A Designation
AN3 indicates a 3/16″ diameter bolt, 6 represents the length in 1/8″ increments (3/4″), and the A suffix means the bolt has an undrilled shank.
Commonly Used With
- AN365 / MS21044 self-locking nuts
- AN310 castellated nuts (for drilled bolts)
- AN960 washers (standard and large area)
Traceability & Certification
This product is supplied with full aerospace traceability documentation from the original manufacturer. Documentation is physically included in the shipment for immediate reference and record-keeping.
✔ Manufactured by approved aerospace fastener manufacturer – Airfasco Industries (USA)
✔ Additional compliance: BILD Industries (DFARS compliant processing)
✔ Specification: NASM6812
✔ Plating: Cadmium plating per AMS-QQ-P-416 Type II, Class 2
✔ Heat treatment: AMS 2759 compliant
✔ Tensile strength: approx. 3780 lbs
✔ Shear strength: approx. 3773 lbs
✔ Hardness: HRC 29-30
✔ Full lot and batch traceability available
✔ Material and mechanical test reports available
✔ Documentation included with each shipment
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