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AN4 BOLTS 1/4-28

From $0.17 to $41.70
Reference Chart
Reference Chart
Dash No. Nominal
Length
Grip
Length
AN4 Cad Plated
Drilled
AN4 Cad Plated
Undrilled
AN4C Stainless
Drilled
AN4C Stainless
Undrilled
AN4H Cad Plated
Head Only
-3 15/32 1/16 $0.78
Quantity
$0.21
Quantity
$4.35
Quantity
$2.18
Quantity
-4 17/32 1/8 $0.72
Quantity
$0.17
Quantity
$1.05
Quantity
$0.69
Quantity
-5 21/32 3/16 $0.69
Quantity
$0.22
Quantity
$1.06
Quantity
$0.72
Quantity
-6 25/32 5/16 $0.68
Quantity
$0.25
Quantity
$1.69
Quantity
$0.76
Quantity
-7 29/32 7/16 $0.87
Quantity
$0.21
Quantity
$1.22
Quantity
$0.78
Quantity
-10 1-1/32 9/16 $0.69
Quantity
$0.23
Quantity
$2.05
Quantity
$0.89
Quantity
-11 1-5/32 11/16 $0.88
Quantity
$0.28
Quantity
$1.34
Quantity
$0.93
Quantity
-12 1-9/32 13/16 $0.83
Quantity
$0.28
Quantity
$1.43
Quantity
$0.94
Quantity
-13 1-13/32 15/16 $0.83
Quantity
$0.28
Quantity
$1.60
Quantity
$1.20
Quantity
-14 1-17/32 1-1/16 $0.95
Quantity
$0.37
Quantity
$1.41
Quantity
$0.94
Quantity
-15 1-21/32 1-3/16 $0.84
Quantity
$0.43
Quantity
$1.86
Quantity
$1.26
Quantity
-16 1-25/32 1-5/16 $1.05
Quantity
$0.40
Quantity
-- $1.08
Quantity
-17 1-29/32 1-7/16 $1.05
Quantity
$0.42
Quantity
$2.90
Quantity
$1.04
Quantity
-20 2-1/32 1-9/16 $0.86
Quantity
$0.63
Quantity
$2.65
Quantity
$1.20
Quantity
-21 2-5/32 1-11/16 $0.99
Quantity
$0.44
Quantity
-- $1.45
Quantity
-22 2-9/32 1-13/16 $1.01
Quantity
$0.45
Quantity
-- $1.29
Quantity
-23 2-13/32 1-15/16 $1.18
Quantity
$0.70
Quantity
-- $1.17
Quantity
-24 2-17/32 2-1/16 $0.95
Quantity
$0.72
Quantity
-- $1.64
Quantity
-25 2-21/32 2-3/16 $1.11
Quantity
$0.68
Quantity
-- $2.00
Quantity
-26 2-25/32 2-5/16 $1.32
Quantity
$0.58
Quantity
-- $2.75
Quantity
-27 2-29/32 2-7/16 $1.19
Quantity
$0.85
Quantity
-- $3.75
Quantity
-30 3-1/32 2-9/16 $1.20
Quantity
$0.79
Quantity
-- $3.76
Quantity
-31 3-5/32 2-11/16 $1.34
Quantity
$0.84
Quantity
-- --
-32 3-9/32 2-13/16 $1.25
Quantity
$0.87
Quantity
-- --
-33 3-13/32 2-15/16 $1.18
Quantity
$0.88
Quantity
-- --
-34 3-17/32 3-1/16 $1.47
Quantity
$2.48
Quantity
-- --
-35 3-21/32 3-3/16 $1.26
Quantity
$0.98
Quantity
-- -- $3.35
Quantity
-36 3-25/32 3-5/16 $1.58
Quantity
$0.96
Quantity
-- --
-37 3-29/32 3-7/16 $1.30
Quantity
$1.16
Quantity
-- --
-40 4-1/32 3-9/16 $1.78
Quantity
$1.25
Quantity
-- --
-41 4-5/32 3-11/16 $1.72
Quantity
$1.38
Quantity
-- --
-42 4-9/32 3-13/16 $1.77
Quantity
$1.44
Quantity
-- --
-43 4-13/32 3-15/16 $2.10
Quantity
$1.63
Quantity
-- --
-44 4-17/32 4-1/16 $1.83
Quantity
$1.47
Quantity
-- --
-45 4-21/32 4-3/16 $2.05
Quantity
$1.55
Quantity
-- --
-46 4-25/32 4-5/16 $1.95
Quantity
$1.47
Quantity
-- --
-47 4-29/32 4-7/16 $2.13
Quantity
$1.51
Quantity
-- --
-50 5-1/32 4-9/16 $5.50
Quantity
$2.93
Quantity
-- --
-51 5-5/32 4-11/16 $8.75
Quantity
$6.65
Quantity
-- --
-52 5-9/32 4-13/16 $9.93
Quantity
$7.90
Quantity
-- --
-53 5-13/32 4-15/16 -- $8.50
Quantity
-- --
-54 5-17/32 5-1/16 -- $9.83
Quantity
-- --
-55 5-21/32 5-3/16 $9.74
Quantity
$9.75
Quantity
-- --
-56 5-25/32 5-5/16 $8.97
Quantity
$9.93
Quantity
-- --
-57 5-29/32 5-7/16 $9.95
Quantity
$9.94
Quantity
-- --
-60 6-1/32 5-9/16 $9.68
Quantity
$13.90
Quantity
-- --
-61 6-5/32 5-11/16 -- $9.20
Quantity
-- --
-62 6-9/32 5-13/16 -- $11.90
Quantity
-- --
-64 6-1/2 6-1/16 $12.55
Quantity
$12.85
Quantity
-- --
-66 6-25/32 6-5/16 -- $13.85
Quantity
-- --
-71 7-5/32 6-11/16 $41.70
Quantity
-- -- --
-72 7-9/32 6-13/16 -- $19.50
Quantity
-- --
Subtotal $0.00
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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.

15% discount on qty of 50-99
20% discount on qty of 100+


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

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Reviews

Good

Michael D
April 4, 2020

Perfect as usual. Quick shipping even with COVID 19 slowing everything down. Stay healthy everyone.

S H
April 3, 2020

Great excellent delivery

Francois T
April 2, 2020

Excellent, just what I ordered.

Wayne
March 12, 2020

Stephen S
February 24, 2020

As usual works and looks perfect.

Stephen S
February 24, 2020

As usual works and looks perfect.

Stephen S
February 24, 2020

As usual works and looks perfect.

Stephen S
February 24, 2020

As usual works and looks perfect.

Stephen S
February 24, 2020

Everything I get from Aircraft Spruce is good. I just wish I could understand what items cause the shipping to be sky-high . I could save alot of money.

Jimmy L
December 13, 2019

Q&A

Q: What are the quantities for price breaks and the standard package quantities? I know you'll send any quantity, but I'd order above the price breaks and in multiples of the package quantities if they were listed.

The discount schedule for large quantities are: 50-100 = 15% / 100+ = 20%. Package quantities are usually 25 but we can sort them however you prefer as long as you mention it in special instructions at checkout.

Q: How do I order AN4 bolts with the head drilled on line?

Use the AN Bolt Selector page. Keyword search "AN Bolt Selector" on our website and click the first result, then use the drop down selections on the page to choose the bolts you need.

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