EVERYTHING FOR PLANES AND PILOTS SINCE 1965 | 877-4-SPRUCE

AN8 Bolts ( 1/2-20 )

From $1.69 to $22.50
Reference Chart

(Hover to zoom | Use mouse wheel for +/-)

Dash No. Nominal
Length
Grip Length Cad Plated Drilled Cad Plated Undrilled
-627/321/16--$4.35
Quantity
-731/323/16$6.50
Quantity
$1.69
Quantity
-101-3/325/16--$3.70
Quantity
-111-7/327/16$2.17
Quantity
$2.02
Quantity
-121-11/329/16$4.40
Quantity
$2.06
Quantity
-131-15/3211/16$3.30
Quantity
$2.09
Quantity
-141-19/3213/16$3.75
Quantity
$2.30
Quantity
-151-23/3215/16$3.55
Quantity
$2.17
Quantity
-161-27/321-1/16$4.35
Quantity
$2.29
Quantity
-171-31/321-3/16$3.85
Quantity
$2.18
Quantity
-202-3/321-5/16$4.60
Quantity
$3.60
Quantity
-212-7/321-7/16$3.95
Quantity
$2.51
Quantity
-222-11/321-9/16$3.99
Quantity
$2.60
Quantity
-232-15/321-11/16$3.10
Quantity
$2.52
Quantity
-242-19/321-13/16$5.70
Quantity
$2.93
Quantity
-252-23/321-15/16$4.40
Quantity
$2.89
Quantity
-262-27/322-1/16$4.80
Quantity
$2.93
Quantity
-272-31/322-3/16$5.35
Quantity
$3.70
Quantity
-303-3/322-5/16$5.35
Quantity
$2.95
Quantity
-313-7/322-7/16$4.60
Quantity
$3.35
Quantity
-323-11/322-9/16$4.35
Quantity
$3.20
Quantity
-333-15/322-11/16$4.53
Quantity
$3.85
Quantity
-343-19/322-13/16$6.90
Quantity
$3.99
Quantity
-353-23/322-15/16--$4.35
Quantity
-363-27/323-1/16$4.35
Quantity
$3.35
Quantity
-373-31/323-3/16$4.43
Quantity
$4.70
Quantity
-404-3/323-5/16--$4.40
Quantity
-414-7/323-7/16$4.35
Quantity
$4.35
Quantity
-424-11/323-9/16$4.85
Quantity
--
-434-15/323-11/16$4.75
Quantity
$4.50
Quantity
-444-19/323-13/16$6.50
Quantity
$6.50
Quantity
-454-23/323-15/16$6.50
Quantity
$4.95
Quantity
-474-31/324-3/16$7.50
Quantity
--
-505-3/324-5/16$21.55
Quantity
$16.50
Quantity
-515-7/324-7/16--$13.46
Quantity
-525-11/324-9/16$16.50
Quantity
$16.70
Quantity
-535-15/324-11/16$21.80
Quantity
--
-545-19/324-13/16--$17.62
Quantity
-555-23/324-15/16$21.50
Quantity
--
-565-27/325-1/16$14.50
Quantity
$16.90
Quantity
-575-31/325-3/16$13.95
Quantity
$21.75
Quantity
-606-3/325-5/16$22.50
Quantity
--
Subtotal $0.00
Add to Wishlist

Overview

Hex head aircraft bolts are made of high-strength type 4037 or 8740 alloy steel (type 8740 is most commonly used). The bolts are centerless ground and threaded after heat treatment. Minimum tensile strength 125,000 PSI. Cadmium plated per specification QQ-P-416A, Type II, Class 3. Available with shank drilled for cotter pin or undrilled for stop nut application, and with or without drilled head for safety wire. Specify bolts to have undrilled shank by adding letter "A" after the dash number. For bolts with drilled head add letter "H" after the AN number. See illustrated examples. "C" represents Type 431 Stainless Steel (contains iron which is magnetic). The length of AN aircraft bolts is measured from under the head to the end of the shank. The "grip" is the unthreaded portion of the shank. See table for conversion of length and/or grip to proper AN callout.

Note: Drilled bolts listed above are drilled shank only. To order drilled head only or both drilled head and shank bolts, please use our AN Bolt Selector by clicking the link below.

Click here for the AN Bolt Selector

Reference Chart

  • Customers Also Viewed
  • Frequently Purchased With

Reviews

Rev. D Verified Purchase

BOLT DRILLED AN8-31

May 25, 2022

Leslie H Verified Purchase

BOLT UNDRILLED AN8-17A

April 19, 2022

Leslie H Verified Purchase

BOLT UNDRILLED AN8-25A

April 19, 2022

Leslie H Verified Purchase

BOLT UNDRILLED AN8-24A

April 19, 2022

Frank G Verified Purchase

BOLT UNDRILLED AN8-17A

March 30, 2022

Haven’t used it yet. I need 2 not just 1. Along with the nuts I haven’t received and lots more products I’ve been waiting months for.

Ryan H Verified Purchase

BOLT DRILLED AN8-50

January 20, 2022

Sara B Verified Purchase

BOLT DRILLED AN8-44

January 11, 2022

Great products and prompt shipping

Eric C Verified Purchase

BOLT UNDRILLED AN8-25A

December 11, 2021

Exactly what I needed for my project, very fast shipping always have good results with Aircraft Spruce

Joseph G Verified Purchase

BOLT UNDRILLED AN8-10A

December 2, 2021

Excellent!

Gilberto C Verified Purchase

BOLT UNDRILLED AN8-12A

August 3, 2021

Q&A

Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: Where is the diameter of the AN8 bolts listed?

These are 1/2" diameter bolts. They are 1/2-20 bolts.

Q: The first column indicates dash number. What does the dash number stand for?

The dash number in the first column designates the part number. For example, the first bolt would be AN8-6, the second would AN8-7, etc.

View in Catalog

View Image View in Catalog