Sonex Aircraft Hardware

The "Nuts & Bolts" of it

Hardware Kits

Hardware is now included* with all Sonex Aircraft Complete Airframe Kits, Quick Build Kits and Kit-Minus-Tail Packages, supplied by Aircraft Spruce & Specialty Co. and sold exclusively by Sonex. Hardware packages may also be purchased individually on the Sonex Web Store.


Aircraft Spruce & Specialty Co.
Hardware Kits for Sonex Aircraft:
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Download Hardware Lists:

Sonex-B Hardware List
Waiex-B Hardware List
Xenos-B Hardware List
Onex Hardware List
Xenos (Legacy) Hardware List
Sonex (Legacy) Hardware List
Waiex (Legacy) Hardware List
Note: These lists are compiled by Sonex and provided for reference only.
*Important Disclaimer:

Inclusion of Aircraft Spruce & Specialty Co. hardware kits is not a guarantee that all hardware required to finish your aircraft will be provided. Some parts & materials needed can be sourced from local, non-aviation vendors and are not included in our hardware kits. Your specific hardware needs will vary based-on configuration options, equipment selections, personal preference and your own custom touches to the aircraft. The hardware kits are not a guarantee that Sonex has or will provide every piece of hardware each builder needs, they are a convenience intended to put the bulk of hardware in each builder's hands.

Tolerance Stacking:
Tolerance stacking is the impact the acceptable tolerance range of each part has on the total thickness of the stacked parts. Due to tolerance stacking, there will always be random instances of bolt lengths that will need to be changed in virtually every builder's kit. Learn more about this in the KITPLANES magazine article "Length Matters" by retired Sonex technical support manager Kerry Fores. No kit or hardware manufacturer can completely account for the effects of tolerance stacking when it occurs, and it is the builder's responsibility to source the proper fasteners when tolerance stacking occurs.

Learn More About Aircraft Hardware

Watch this informative webinar about aircraft hardware from EAA Homebuilders Week.

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