SCREW (P/N a221b20) - New Surplus

The a221b20 is an aircraft screw manufactured from alloy or stainless steel for structural and systems assembly. This fastener secures avionics racks to mounting structures and airframe components per AN, MS, or NAS specifications. Thread form, length, and strength class are defined in the aircraft's Illustrated Parts Catalog and maintenance documentation.

Installation requires matching the screw specification to the mounting application, ensuring proper torque and engagement depth for reliable load transfer.

What is the SCREW (P/N a221b20)?

The a221b20 is an aircraft screw manufactured from alloy or stainless steel for structural and systems assembly. This fastener secures avionics racks to mounting structures and airframe components per AN, MS, or NAS specifications.

Does the a221b20 meet AN/MS/NAS aviation specifications?

Aircraft hardware is manufactured to military and aviation specifications. The SCREW 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 a221b20 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 a221b20.

Can I order the a221b20 in custom quantities?

Yes, we sell hardware in various quantities from single units to bulk lots. The SCREW is available in: New Surplus. Submit an RFQ for volume pricing or call (904) 998-9101 for quantity availability.