SCREW,CSK,HHS,1/4-28-1.41,STL (P/N nas517-4-15) - New Surplus

The NAS517-4-15 is a 100° countersunk flush head machine screw in alloy steel, sized 1/4-28 UNF with 1.41 inch length. This aerospace-standard fastener installs flush with structural surfaces for aerodynamic continuity in aircraft applications. The screw mates with 100° countersinks and requires either a nutplate or tapped hole installation per aircraft maintenance manuals.

Designed for close-tolerance shear applications where smooth, recessed fastening is critical. Common in access panel assemblies and skin-to-structure connections on general and commercial aircraft.

What is the SCREW,CSK,HHS,1/4-28-1.41,STL (P/N nas517-4-15)?

The NAS517-4-15 is a 100° countersunk flush head machine screw in alloy steel, sized 1/4-28 UNF with 1. 41 inch length.

What conditions is the nas517-4-15 available in?

The nas517-4-15 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 nas517-4-15?

The nas517-4-15 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 nas517-4-15?

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.