BOLT,MACHINE (P/N an4-6a) - New Surplus, New

The AN4-6A is a 1/4-28 UNF hex-head machine bolt conforming to AN-standard specifications for aircraft structural assemblies. Manufactured from alloy steel with an undrilled shank, this fastener provides reliable mechanical joining in airframe structural joints. The AN4 size designation indicates 1/4-inch diameter threads at 28 threads per inch (UNF).

Installation requires pairing with an appropriate nut and torque application per aircraft maintenance manual specifications. Commonly used in wing attachments, fuselage joints, and control surface installations on general aviation and commercial aircraft.

What is the BOLT,MACHINE (P/N an4-6a)?

The AN4-6A is a 1/4-28 UNF hex-head machine bolt conforming to AN-standard specifications for aircraft structural assemblies. Manufactured from alloy steel with an undrilled shank, this fastener provides reliable mechanical joining in airframe structural joints.

What conditions is the an4-6a available in?

The an4-6a is currently available in the following conditions: New Surplus, New. Each condition reflects the part's maintenance history and certification status per FAA standards.

How do I get pricing for the an4-6a?

The an4-6a 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 an4-6a?

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.