BOLT, MACHINE, CLOSE TOLERANCE (P/N an174-6) - New Surplus

The AN174-6 is a close-tolerance hex-head machine bolt with 1/4-28 UNF threads and a drilled shank for safetying. This aircraft-grade fastener installs in reamed, interference-fit shear joints common in control-system brackets and structural assemblies. The drilled shank accommodates safety wire, preventing accidental loosening during flight operations.

Install in correctly sized holes with appropriate washers and nuts, then torque per aircraft maintenance manual specifications. Designed for tight-fit applications where precision hole alignment and load transfer are critical.

What is the BOLT, MACHINE, CLOSE TOLERANCE (P/N an174-6)?

The AN174-6 is a close-tolerance hex-head machine bolt with 1/4-28 UNF threads and a drilled shank for safetying. This aircraft-grade fastener installs in reamed, interference-fit shear joints common in control-system brackets and structural assemblies.

What conditions is the an174-6 available in?

The an174-6 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 an174-6?

The an174-6 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 an174-6?

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.