📋 FAA 8130-3 traceability available on every part — included with shipment  Learn more →
AN4-20A AN Bolt

Hex Head Bolt

1/4-28 hex head bolt, 1-1/4" grip. Extra-long grip for deep stack-ups on carry-through spars, bulkhead doublers, and multi-layer fitting assemblies. Cadmium plated alloy steel.

Technical Specifications
MaterialAlloy Steel
FinishCadmium Plated
Thread1/4-28
Size1/4"
Diameter1/4"
Grip Length1-1/4"
Pack Qty10 pieces
Spec TypeAN
CategoryBolt

Traceability & Certification — All AeroSpaceSpecBolt hardware is sourced from certified surplus. FAA Form 8130-3 Airworthiness Approval Tags and/or Certificate of Conformance documentation available on request. Parts are inspected prior to sale. Ships from Pembroke Pines, FL.

Documentation
  • FAA 8130-3 traceability included
  • Material certs on file
  • Lot traceability
Replaces These OEM Part Numbers

This hardware is the direct AN/MS/NAS equivalent for the following aircraft manufacturer callouts. Confirm with your A&P or refer to AC 43.13-1B before installation.

OEM Part Number Manufacturer Aircraft Models
0413020-2 Cessna C182, C185, C206, C210
PM10-4020 Mooney M20J, M20K, M20L
64275-02 Piper PA-28-180, PA-28-235, PA-32

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$15.95 Pack of 10
In Stock — 95 units available
or buy single item via Stripe →

Ships 1–2 business days. Questions? specbolt@polsia.app

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