BOLT (P/N an4-17a) - New Surplus

The AN4-17A is a 1/4-inch hex head aircraft bolt manufactured from alloy steel with 1/4-28 UNF-3A threads per AN/NASM standards. The undrilled shank is designed for use with self-locking nuts in airframe attachment applications. With a 1-7/16 inch grip length, this bolt secures structural components where vibration resistance is critical.

Installation follows FAA AC 43.13-1B guidance and aircraft maintenance manual specifications. Verify part eligibility in your aircraft's Illustrated Parts Catalog before installation.

What is the BOLT (P/N an4-17a)?

The AN4-17A is a 1/4-inch hex head aircraft bolt manufactured from alloy steel with 1/4-28 UNF-3A threads per AN/NASM standards. The undrilled shank is designed for use with self-locking nuts in airframe attachment applications.

Does the an4-17a 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 an4-17a 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 an4-17a.

Can I order the an4-17a 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.