BOLT (P/N an4-12a) - New Surplus

The AN4-12A is a 1/4-inch hex head bolt conforming to Aeronautical Standard specifications for aircraft structural applications. Manufactured from alloy steel with an undrilled shank designed for use with self-locking nuts, this fastener meets AN4 series requirements for strength and reliability. Commonly installed in airframe bracket attachments and primary structure connections.

Installation requires proper torque application per 1/4-28 UNF specifications and adherence to aircraft maintenance manual procedures. Follow FAA AC 43.13-1B guidance for final assembly and inspection protocols.

What is the BOLT (P/N an4-12a)?

The AN4-12A is a 1/4-inch hex head bolt conforming to Aeronautical Standard specifications for aircraft structural applications. Manufactured from alloy steel with an undrilled shank designed for use with self-locking nuts, this fastener meets AN4 series requirements for strength and reliability.

What conditions is the an4-12a available in?

The an4-12a is currently available in the following conditions: New Surplus. Each condition reflects the part's maintenance history and certification status per FAA standards.

How do I get pricing for the an4-12a?

The an4-12a requires a custom quote. Submit a Request for Quote (RFQ) through our website or call our sales team at (904) 998-9101 for immediate pricing assistance.

Do you offer expedited shipping for the an4-12a?

Yes, we offer same-day processing on in-stock items and provide 24/7 AOG (Aircraft on Ground) support for urgent needs. Standard, expedited, and overnight shipping options are available.