BOLT,MACHINE (P/N an4-27a) - New Surplus

The AN4-27A is a 1/4-28 UNF hex head machine bolt manufactured from alloy steel per AN/NASM standards. The undrilled shank (denoted by the 'A' suffix) pairs with self-locking nuts for secure fastening without additional locking mechanisms. Used in aircraft structural joints where precise grip length is critical.

Installation requires matching the bolt to IPC grip callouts, pairing with specified washers and self-locking nuts, and torquing per applicable maintenance manual requirements. Standard aerospace fastener for general airframe assembly and repair.

What is the BOLT,MACHINE (P/N an4-27a)?

The AN4-27A is a 1/4-28 UNF hex head machine bolt manufactured from alloy steel per AN/NASM standards. The undrilled shank (denoted by the 'A' suffix) pairs with self-locking nuts for secure fastening without additional locking mechanisms.

What conditions is the an4-27a available in?

The an4-27a 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 an4-27a?

The an4-27a 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 an4-27a?

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.