BOLT (P/N an4-12a) - New Surplus
P/N: an4-12a
Category: Fasteners & Hardware
This product requires a custom quote. Please contact our sales team for pricing information or submit an RFQ (Request for Quote).
Available Inventory
| Condition | Stock |
|---|---|
| New Surplus | 151 Available |
Product Description
The AN4-12A is a 1/4-inch hex head bolt conforming to Aeronautical Standard specifications for aircraft structural applications. Manufactured from alloy steel with an undrilled shank designed for use with self-locking nuts, this fastener meets AN4 series requirements for strength and reliability. Commonly installed in airframe bracket attachments and primary structure connections.
Installation requires proper torque application per 1/4-28 UNF specifications and adherence to aircraft maintenance manual procedures. Follow FAA AC 43.13-1B guidance for final assembly and inspection protocols.
Please note: Product descriptions are provided for informational purposes. Always refer to your aircraft's Illustrated Parts Catalog (IPC) to verify part compatibility and specifications.
Frequently Asked Questions
What is the BOLT (P/N an4-12a)?
The AN4-12A is a 1/4-inch hex head bolt conforming to Aeronautical Standard specifications for aircraft structural applications. Manufactured from alloy steel with an undrilled shank designed for use with self-locking nuts, this fastener meets AN4 series requirements for strength and reliability.
Does the an4-12a 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 an4-12a 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 an4-12a.
Can I order the an4-12a 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.