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.

Does the an4-6a meet AN/MS/NAS aviation specifications?

Aircraft hardware is manufactured to military and aviation specifications. The BOLT,MACHINE 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 an4-6a 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 an4-6a.

Can I order the an4-6a in custom quantities?

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