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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AN-BOLT-DRILLED-HEAD AN3H26A
Airframe Bolt, Drilled Head - AN3H26A
QUOTE
AN-BOLT-DRILLED-CAD AN6-40
Airframe Bolt, Drilled - AN6-40
QUOTE
various-an-bolt AN742F16
AN Bolts - Part # AN742F16
$1.75
AN-BOLT-DRILLED-CAD AN7-15
Airframe Bolt; Drilled - AN7-15
$4.22
AN-BOLT-DRILLED-CAD AN7-31
Airframe Bolt, Drilled - AN7-31
QUOTE
AN-BOLT-UNDRILLED AN5-43A
Airframe Bolt - AN5-43A
$4.08
AN-BOLT-DRILLED-CAD AN5-55
Airframe Bolt, Drilled - AN5-55
QUOTE
AN42BA AN42B10A
Eye Bolt - AN42B10A
QUOTE
AN-CRES-BOLT-DRILLED AN4C12
Airframe Bolt, Drilled - AN4C12
QUOTE
AN174-10A AN175-7A
Close Tolerance Bolt - AN175-7A
QUOTE
AN24-10 AN24-17
Clevis Bolt - AN24-17
QUOTE
AN-BOLT-DRILLED-CAD AN8-21
Airframe Bolt - AN8-21
$5.47
various-an-bolt AN43BC13A
AN Bolts - Part # AN43BC13A
$29.69
AN-BOLT-DRILLED-CAD AN5-42
Airframe Bolt, Drilled - AN5-42
QUOTE
AN-BOLT-UNDRILLED AN5-52A
Airframe Bolt - AN5-52A
QUOTE
AN-BOLT-DRILLED-CAD AN8-44
Airframe Bolt - AN8-44
QUOTE
AN174-10 AN174-20
Close Tolerance Bolt - AN174-20
QUOTE
AN-BOLT-DRILLED-CAD AN5-46
Airframe Bolt; Drilled - AN5-46
QUOTE
AN-BOLT-DRILLED-HEAD AN6H13A
Airframe Bolt, Drilled Head - AN6H13A
QUOTE
AN-BOLT-UNDRILLED AN7-37A
Airframe Bolt - AN7-37A
$3.47
AN-BOLT-UNDRILLED AN8-31A
Airframe Bolt - AN8-31A
QUOTE
AN-BOLT-UNDRILLED AN8-32A
Airframe Bolt - AN8-32A
QUOTE
AN174-10 AN174-10
Close Tolerance Bolt - AN174-10
QUOTE
AN-BOLT-DRILLED-HEAD AN4H22A
Airframe Bolt, Drilled Head - AN4H22A
QUOTE
AN23-15A AN23-12A
Clevis Bolt - AN23-12A
QUOTE
AN-BOLT-DRILLED-CAD AN3-36
Airframe Bolt - AN3-36
QUOTE
AN-BOLT-DRILLED-CAD AN6-21
Airframe Bolt, Drilled - AN6-21
QUOTE
AN-CRES-BOLT-DRILLED-HEAD AN3DD6A
Airframe Bolt - AN3DD6A
QUOTE
AN-BOLT-DRILLED-CAD AN4-55
Airframe Bolt; Drilled - AN4-55
$13.91
AN-CRES-BOLT-DRILLED-HEAD AN4CH6A
Airframe Bolt; Drilled Head - AN4CH6A
QUOTE
AN-BOLT-UNDRILLED AN5-63A
Airframe Bolt - AN5-63A
$17.19
AN386A AN386-3-10A
Taper Pin - AN386-3-10A
QUOTE
AN-BOLT-DRILLED-CAD AN4-35
Airframe Bolt, Drilled - AN4-35
QUOTE
AN174-10 AN177-42
Close Tolerance Bolt - AN177-42
$24.78
AN-CRES-BOLT-DRILLED AN3C4
Airframe Bolt; Drilled - AN3C4
QUOTE
AN-BOLT-UNDRILLED AN5-47A
Airframe Bolt - AN5-47A
QUOTE
AN-BOLT-DRILLED-CAD AN7-32
Airframe Bolt, Drilled - AN7-32
QUOTE
AN-BOLT-UNDRILLED AN7-41A
Airframe Bolt - AN7-41A
QUOTE
AN-BOLT-DRILLED-CAD AN8-22
Airframe Bolt - AN8-22
QUOTE
AN23-15 AN23-28
Clevis Bolt - AN23-28
QUOTE
AN174-10 AN173-14
Close Tolerance Bolt - AN173-14
QUOTE
various-an-bolt AN3C22A
Bolt Undrilled S/S-AN3C22A
QUOTE
AN-BOLT-DRILLED-CAD AN7-20
Airframe Bolt; Drilled - AN7-20
QUOTE
AN174H10A AN174H16A
Close Tolerance Bolt - AN174H16A
QUOTE
AN23-15A AN23-24A
Clevis Bolt - AN23-24A
QUOTE
AN-BOLT-DRILLED-HEAD AN3H20A
Airframe Bolt, Drilled Head - AN3H20A
QUOTE
AN-BOLT-UNDRILLED AN5-46A
Airframe Bolt - AN5-46A
QUOTE
AN-BOLT-DRILLED-CAD AN7-13
Airframe Bolt; Drilled - AN7-13
$4.85
Unit of Measure
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