AN3-4A Aircraft Grade Hex Head Bolt (10-32 UNF, 1/2" Grip)

When uncompromising strength and reliability are paramount, the AN3-4A Aircraft Grade Bolt stands as the industry standard. Manufactured to stringent Aeronautical Standard (AN) specifications, this high-quality, cad-plated steel bolt is a go-to fastener for applications where safety and performance cannot be sacrificed.

The AN3-4A bolt is characterized by its precise dimensions and robust construction. It features a 10-32 UNF-2A thread, ensuring a secure and tight fit with compatible nuts (like AN365 or MS20365 series nuts). The 1/2-inch (0.500") grip length makes it ideal for securing material thicknesses of that precise dimension, providing optimal clamping force and shear strength.

Key Features & Benefits:

• Aircraft Grade (AN) Certified: Manufactured and inspected to the rigorous Aeronautical Standard (AN) specifications, guaranteeing superior quality, consistency, and performance for critical applications.

• High-Strength Steel Construction: Made from durable alloy steel (often 4130 or 8740), heat-treated for exceptional tensile and shear strength, capable of withstanding extreme loads and vibrations.

   

• Cadmium Plated Finish: Protected with a cadmium plating for excellent corrosion resistance in diverse environments, while also providing a low-friction surface for easier installation and removal.

   

• Precision Rolled Threads: Features 10-32 UNF-2A rolled threads, which are stronger than cut threads, offering superior fatigue resistance and a more consistent fit.

• Hex Head Design: Standard hex head allows for easy tightening with conventional wrenches, ensuring a secure installation.

• Versatile Applications: While primarily used in aviation, its high reliability makes it indispensable for high-performance automotive projects, marine applications, industrial machinery, and any scenario demanding a certified, robust fastening solution.

• Commonly Paired With: AN960 washers and AN365 or MS20365 series nuts.

Ensure the integrity and safety of your most important projects. Choose the AN3-4A Aircraft Grade Bolt for a fastening solution you can truly depend on.

Technical Specifications:

• Part Number: AN3-4A

• Material: Alloy Steel

• Finish: Cadmium Plating (QQ-P-416, Type II, Class 3)

• Thread Size: 10-32 UNF-2A

• Nominal Diameter: #10 (0.190")

• Grip Length (Lg): 1/2" (0.500")

• Overall Length (Lo): Approximately 0.8125" (Grip Length + Thread Length)

• Head Style: Hex Head

• Condition: New, Unused, Certified (as applicable per your stock)