Aircraft bolts are fabricated from cadmium or zinc plated corrosion resistant steel, unplated corrosion resistant steel, and anodized aluminum alloys. Most bolts used in aircraft structures are either general purpose. In certain cases, aircraft manufacturers make bolts of different dimensions or greater strength than the standard types. Such bolts are made for a particular application, and it is of extreme importance to use like bolts in replacement. Special bolts are usually identified by the letter "S" stamped on the head.

AN bolts come in three head styles - hex head, clevis, and NAS bolts are available in hex head, internal wrenching, and countersunk head styles.

The hex head aircraft bolt (AN-3 through AN-20) is an all purpose structural bolt used for general applications involving tension or shear loads where a light drive fit is permissible (0.006 inch clearance for a 5/8 inch hole, and other sizes in proportion).

Monroe Aerospace is a stocking distributor of Aerospace and Mil-Spec hardware. We have an extensive inventory of AN bolts. Every part that we sell is in Factory new (FN) condition and we provide our company’s certificate of conformance for all parts on every order. See below for our products.

various-an-bolt
Unit of Measure
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AN42B/AN43B Eye Bolts AN43B15A
Eye Bolt - AN43B15A
{QUOTE}
AN42B/AN43B Eye Bolts AN43B17A
Eye Bolt - AN43B17A
{QUOTE}
AN42B/AN43B Eye Bolts AN43B20A
Eye Bolt - AN43B20A
{QUOTE}
AN42B/AN43B Eye Bolts AN43B23A
Eye Bolt - AN43B23A
{QUOTE}
AN42B/AN43B Eye Bolts AN43B26A
Eye Bolt - AN43B26A
{QUOTE}
AN42B/AN43B Eye Bolts AN43B30A
Eye Bolt - AN43B30A
{QUOTE}
AN42B/AN43B Eye Bolts AN43B31A
Eye Bolt - AN43B31A
{QUOTE}
AN42B/AN43B Eye Bolts AN43B32A
Eye Bolt - AN43B32A
{QUOTE}
AN42B/AN43B Eye Bolts AN43B5A
Eye Bolt - AN43B5A
{QUOTE}
AN42B/AN43B Eye Bolts AN44-17A
Eye Bolt - AN44-17A
{QUOTE}
AN-BOLT-DRILLED-CAD AN4-42
Airframe Bolt, Drilled - AN4-42
{QUOTE}
AN-BOLT-DRILLED-CAD AN4-45
Airframe Bolt, Drilled - AN4-45
{QUOTE}
AN-BOLT-DRILLED-CAD AN4-47
Airframe Bolt, Drilled - AN4-47
{QUOTE}
AN-BOLT-DRILLED-CAD AN4-52
Airframe Bolt, Drilled - AN4-52
{QUOTE}
AN-BOLT-UNDRILLED AN4-52A
Airframe Bolt - AN4-52A
{QUOTE}
AN-BOLT-DRILLED-CAD AN4-53
Airframe Bolt, Drilled - AN4-53
{QUOTE}
AN-BOLT-UNDRILLED AN4-53A
Airframe Bolt - AN4-53A
{QUOTE}
AN-BOLT-UNDRILLED AN4-54A
Airframe Bolt - AN4-54A
{QUOTE}
AN-BOLT-DRILLED-CAD AN4-54
Airframe Bolt, Drilled - AN4-54
{QUOTE}
AN-BOLT-UNDRILLED AN4-55A
Airframe Bolt - AN4-55A
{QUOTE}
AN-BOLT-DRILLED-CAD AN4-56
Airframe Bolt, Drilled - AN4-56
{QUOTE}
AN-BOLT-UNDRILLED AN4-56A
Airframe Bolt - AN4-56A
{QUOTE}
AN-BOLT-DRILLED-CAD AN4-57
Airframe Bolt, Drilled - AN4-57
{QUOTE}
AN46 AN46-15A
Eye Bolt - AN46-15A
{QUOTE}
Unit of Measure
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