AN8-31A Airframe Bolt

Part Number: AN8-31A

AN8-31A Airframe Bolt, Inventory: 914, Thread: 1/2-20, Grip Length: 3 7/32, Fastener Length: 2 7/16, Drilling Type: Undrilled, Surface Treatment: Cadmium Plated Steel.

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Quantity Break Pricing

In Stock


Grip Length

3 7/32

Fastener Length

2 7/16

Drilling Type


Surface Treatment

Cadmium Plated Steel

Inventory Note

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AN8-31A Airframe Bolt

The AN8-31A Airframe Bolt 1/2-20 with a 1/2” shank diameter. All sizes of AN8 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 AN8-31A Airframe Bolt is tapered, to allow easier starting of the nut. The AN8-31A Airframe Bolt is tapered on the last threads, for ease of installation of the nut. The AN8-31A Airframe Bolt has a tensile strength of 125,000 psi and a shear strength of 76,000 psi. If the AN8 AN8-31A Airframe Bolt is overstressed, it will bend first rather than snapping.