BOLT (P/N an4-12) - New Surplus
P/N: an4-12
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 | 256 Available |
Product Description
The AN4-12 is a 1/4-inch hex head aircraft bolt conforming to AN4/NASM specifications. Constructed from alloy steel with 1/4-28 UNF threads and a drilled shank for cotter pin retention. Designed for shear-critical fastening in airframe assemblies, particularly clevis connections and structural joints.
Install with a castellated nut and cotter pin, torqued per aircraft maintenance manual requirements. The drilled shank prevents fastener rotation and ensures positive locking in high-vibration environments.
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 an4-12)?
The AN4-12 is a 1/4-inch hex head aircraft bolt conforming to AN4/NASM specifications. Constructed from alloy steel with 1/4-28 UNF threads and a drilled shank for cotter pin retention.
Does the an4-12 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 an4-12 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 an4-12.
Can I order the an4-12 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.
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