BOLT (P/N an176-21a) - New Surplus

The AN176-21A is a close-tolerance hex-head aircraft bolt designed for precision-reamed hole installations where minimal play and accurate fit are critical. This steel fastener creates snug, shear-transfer joints in structural assemblies and airframe bracket attachments. The bolt pairs with a specified nut to form a secure, load-bearing connection.

Installation requires a precision-reamed hole and adherence to torque specifications outlined in the aircraft maintenance manual or FAA AC 43.13-1B. Common in general aviation and commercial aircraft structural repairs and assembly work.

What is the BOLT (P/N an176-21a)?

The AN176-21A is a close-tolerance hex-head aircraft bolt designed for precision-reamed hole installations where minimal play and accurate fit are critical. This steel fastener creates snug, shear-transfer joints in structural assemblies and airframe bracket attachments.

Does the an176-21a 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 an176-21a 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 an176-21a.

Can I order the an176-21a 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.