AN8C21A Airframe Bolt

Part Number: AN8C21A

AN8C21A Airframe Bolt, Inventory: 19, Thread: 1/2-20, Grip Length: 1 7/16, Fastener Length: 2 7/32, Drilling Type: Undrilled, Surface Treatment: Corrosion-Resistant Steel.

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Quantity Break Pricing

In Stock


Grip Length

1 7/16

Fastener Length

2 7/32

Drilling Type


Surface Treatment

Corrosion-Resistant Steel

Inventory Note

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AN8C21A Airframe Bolt

The AN8C21A Airframe Bolt features Corrosion-Resistant Steel and has a 1/2-20 thread with a 1/2” shank diameter. All sizes of AN8C bolts have a 0.68 inch thread length, regardless of grip length. This thread length has been carefully calculated to accommodate a full-height nut plus one AN960-816 washer. The threaded end of the AN8C21A Airframe Bolt is tapered, to allow easier starting of the nut. The AN8C21A Airframe Bolt is tapered on the last threads, for ease of installation of the nut. The AN8C21A Airframe Bolt has a tensile strength of 125,000 psi. If the AN8C AN8C21A Airframe Bolt is overstressed, it will bend first rather than snapping.