BOLT (P/N an4-26) - New Surplus

The AN4-26 is a 1/4-inch hex head aircraft bolt conforming to AN/NASM4 standards. This steel fastener features a 1/4-28 UNF thread and is designed for structural joints and control linkages in aircraft airframes. Used in bracket assemblies where reliable fastening under vibration and flight loads is critical.

Installation requires matching AN nuts and washers, with torque specifications per FAA AC 43.13-1B. Grip length selection depends on the dash number designation for proper clamping in your specific application.

What is the BOLT (P/N an4-26)?

The AN4-26 is a 1/4-inch hex head aircraft bolt conforming to AN/NASM4 standards. This steel fastener features a 1/4-28 UNF thread and is designed for structural joints and control linkages in aircraft airframes.

Does the an4-26 meet AN/MS/NAS aviation specifications?

Aircraft hardware is manufactured to military and aviation specifications. The BOLT conforms to its applicable AN (Air Force-Navy), MS (Military Standard), or NAS (National Aerospace Standard) specification. Contact us for specific specification details.

What material is the an4-26 manufactured from?

Aviation hardware is available in various materials including cadmium-plated steel, stainless steel, aluminum alloy, and titanium depending on the application. Contact us for material certification and specifications for the an4-26.

Can I order the an4-26 in custom quantities?

Yes, we sell hardware in various quantities from single units to bulk lots. The BOLT is available in: New Surplus. Submit an RFQ for volume pricing or call (904) 998-9101 for quantity availability.