Aircraft Hardware Suppliers AN3 Bolts

FAA/PMA Approved 3/16" Diameter Bolts for European Aviation

AN3 Bolts: Essential Aircraft Hardware for European Aviation

Airpart Supply is your trusted European distributor for AN3 aircraft bolts, stocking comprehensive ranges from our Dublin warehouse with fast delivery across the EU. AN3 bolts are 3/16" diameter (10-32 thread) aircraft hardware components manufactured to precise aerospace standards. These bolts are fundamental fasteners used throughout Cessna, Piper, and Beechcraft aircraft structures, meeting stringent FAA and EASA certification requirements for European operations. Our Dublin-based distribution centre maintains extensive AN3 bolt inventory in both cadmium-plated and stainless steel finishes, available in drilled shank, undrilled shank, and drilled head configurations. We supply aircraft hardware to maintenance organisations, EASA Part-145 approved facilities, aircraft owners, and aviation professionals throughout Ireland, Germany, France, Spain, Italy, and across the European Union. All AN3 bolts supplied by Airpart Supply include full traceability certification and conform to AN standards, ensuring compliance with European aviation regulations. Our EU warehouse location provides efficient VAT handling and streamlined delivery to European customers.

AN3 Bolt Technical Specifications & Applications

AN3 bolts feature a 3/16" (4.76mm) diameter shank with 10-32 unified thread specifications. These precision-engineered fasteners serve critical applications in airframe structures, control surfaces, and accessory installations across general aviation aircraft.

Material Specifications & Finish Options

Cadmium-Plated AN3 Bolts: Standard steel construction with cadmium plating provides excellent corrosion resistance for interior and protected exterior applications. Cadmium-plated bolts are the most commonly specified fasteners in Cessna aircraft maintenance and Piper aircraft service procedures.

Stainless Steel AN3 Bolts: Manufactured from corrosion-resistant stainless steel alloy, designated with "C" suffix (AN3C series). Stainless steel variants provide superior performance in corrosive environments and are specified for coastal operations and high-humidity conditions common in European maritime regions.

Shank & Head Configuration Options

Drilled Shank Bolts: Feature a transverse hole drilled through the threaded portion for safety wire installation. These are mandatory for critical applications requiring positive locking, particularly in engine installations and flight control systems.

Undrilled Shank Bolts (A-suffix): Solid shank construction without drilling, designated by "A" suffix (e.g., AN3-10A). These provide maximum strength for applications where safety wire is not required and are used with self-locking nuts.

Drilled Head Bolts (H-prefix): Feature drilling through the hex head for safety wire attachment, designated with "H" prefix (e.g., AN3H-10A). Commonly specified for Lycoming engine and Continental Motors accessory installations.

Length & Grip Length Specifications

AN3 bolts are manufactured in lengths ranging from 15/32" (grip 1/16") to 4-21/32" (grip 4-1/4"). The dash number in the part designation indicates the bolt length in sixteenths of an inch. For example, AN3-10A indicates a 10/16" (5/8") length undrilled bolt.

The grip length represents the unthreaded shank portion and must be selected to ensure proper thread engagement with the nut. European aviation regulations require minimum thread engagement equivalent to the bolt diameter, with proper washer configuration.

AN3 - 3/16" Diameter (10-32 Thread) Specifications

Note: Additional longer lengths available through AN3-45A. Contact our Dublin warehouse for extended length requirements and complete aircraft hardware specifications.

AN3 Bolt Applications in European General Aviation

AN3 bolts serve as primary structural fasteners across multiple aircraft systems and installations common to European-registered aircraft:

Airframe & Structure Applications

AN3 bolts secure airframe components including inspection panels, fairings, cowling attachments, and secondary structural elements. These fasteners are specified throughout Cessna aircraft maintenance manuals for wing-to-fuselage attachments, control surface hinges, and access panel installations.

Engine & Powerplant Installations

Lycoming and Continental engine installations utilise AN3 drilled bolts for accessory drive mounting, magneto installations, and alternator brackets. Drilled shank variants with safety wire are mandatory for these critical engine applications per manufacturer service instructions.

Systems & Accessories

AN3 bolts attach various aircraft systems including electrical components, avionics racks, instrument panels, and interior fittings. Stainless steel variants (AN3C series) are commonly specified for landing gear doors, wheel fairings, and other components exposed to environmental conditions.

Control Systems

Flight control cable guides, pulley brackets, and control column attachments frequently employ AN3 fasteners. These installations require precise grip length selection to ensure proper bearing surface engagement and prevent structural stress concentration points.

Why Choose Airpart Supply for AN3 Bolts in Europe?

Dublin Warehouse Stock Availability

Our Dublin-based European distribution centre maintains comprehensive AN3 bolt inventory in all common configurations. We stock both cadmium-plated and stainless steel variants in drilled shank, undrilled shank, and drilled head options, with lengths from 15/32" through extended configurations up to 4-21/32". This extensive stock holding ensures immediate availability for European customers without transatlantic shipping delays.

Fast EU Delivery & Logistics

Shipping from our Dublin warehouse provides 2-5 business day delivery to most European destinations including Germany, France, Spain, Italy, Netherlands, Belgium, and throughout the EU. Our free express shipping programme on qualifying orders eliminates shipping costs for larger aircraft hardware purchases.

EU VAT Compliance & Customs Handling

As an Irish-registered company, we handle all VAT requirements for European customers, providing proper documentation and eliminating customs delays. EU customers receive streamlined invoicing with appropriate VAT treatment based on their location, whether B2B or B2C transactions. This simplifies purchasing compared to imports from non-EU suppliers.

EASA Compliance & Certification

All AN3 bolts supplied by Airpart include full traceability documentation and manufacturer certifications meeting EASA Part-21 requirements. We provide certificates of conformance with each shipment, essential for Part-145 maintenance organisations and continuing airworthiness management throughout Europe. Our documentation supports both commercial operations and private aircraft maintenance in EU member states.

Technical Support for European Customers

Our technical team provides expert guidance on AN3 bolt selection, grip length determination, and proper installation procedures. We assist with Cessna, Piper, and Beechcraft maintenance requirements, helping European customers identify correct part numbers from aircraft maintenance manuals and service bulletins.

Complete Hardware Solution

Beyond AN3 bolts, we stock comprehensive ranges of AN960 washers, AN970 lock washers, castle nuts, cotter pins, and safety wire. This allows European customers to source complete hardware kits from a single supplier, reducing procurement complexity and freight costs.

Order AN3 Aircraft Bolts from Our Dublin Warehouse

Fast European delivery • Full EASA documentation • Expert technical support

Contact Airpart Supply today for AN3 bolt availability and pricing for your European aircraft maintenance requirements.