BOLT,CLOSE TOLERANCE (P/N an174h11a) - New Surplus

The AN174H11A is a 1/4-28 UNF close-tolerance hex bolt manufactured from alloy steel per AN standards. This fastener features a drilled head and undrilled shank, designed for interference-fit shear joints in airframe applications. Commonly used in hinge fittings and structural connections requiring precision fit in reamed holes.

Installation requires proper hole preparation and torque per aircraft maintenance manual specifications and FAA AC 43.13-1B guidance for aerospace hardware.

What is the BOLT,CLOSE TOLERANCE (P/N an174h11a)?

The AN174H11A is a 1/4-28 UNF close-tolerance hex bolt manufactured from alloy steel per AN standards. This fastener features a drilled head and undrilled shank, designed for interference-fit shear joints in airframe applications.

Does the an174h11a meet AN/MS/NAS aviation specifications?

Aircraft hardware is manufactured to military and aviation specifications. The BOLT,CLOSE TOLERANCE 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 an174h11a 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 an174h11a.

Can I order the an174h11a in custom quantities?

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