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AN4 Airframe Bolt - Drilled Head, 1/4-28 Thread

Click for a larger picture of AN4  Airframe Bolt - Drilled Head, 1/4-28 Thread
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AN4H bolts have a drilled head for safety wire and a 1/4-28 thread with 0.469 inch thread length except AN4H-3A, which has 0.406 inch thread length.

A or no A? AN bolts were originally designed to be used with a castle nut and cotter pin, so the base part number indicates a drilled shank. The addition of an "A" at the end (for example, AN4H-15A) indicates an undrilled shank for use with a self-locking nut.

AN bolt nomenclature can be confusing. Please take a look at our page on Identifying AN Bolt Sizes.

Enter desired order quantities below, then click the "Add selected quantities to cart" button.

Order Qty
Part No.
Desc.
Price
Status
Call for Quote

AN4H-3

1/4-28 x 1/16" Grip Airframe Bolt, Drilled Head & Shank

Call for QuoteNot In Stock
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AN4H-3A

1/4-28 x 1/16" Grip Airframe Bolt, Drilled Head

1 to 11: $0.54

12 & up: $0.50

In Stock
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AN4H-4

1/4-28 x 1/16" Grip Airframe Bolt, Drilled Head & Shank

Call for QuoteNot In Stock
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AN4H-4A

1/4-28 x 1/16" Grip Airframe Bolt, Drilled Head

1 to 11: $0.54

12 to 149: $0.48

150 & up: $0.41

In Stock
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AN4H-5

1/4-28 x 3/16" Grip Airframe Bolt, Drilled Head & Shank

Call for QuoteNot In Stock
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AN4H-5A

1/4-28 x 3/16" Grip Airframe Bolt, Drilled Head

1 to 11: $0.69

12 & up: $0.67

In Stock
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AN4H-6

1/4-28 x 5/16" Grip Airframe Bolt, Drilled Head & Shank

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AN4H-6A

1/4-28 x 5/16" Grip Airframe Bolt, Drilled Head

1 to 11: $0.59

12 & up: $0.52

In Stock

AN4H-7

1/4-28 x 7/16" Grip Airframe Bolt, Drilled Head & Shank

1 to 11: $0.89

12 to 149: $0.79

150 & up: $0.68

In Stock

AN4H-7A

1/4-28 x 7/16" Grip Airframe Bolt, Drilled Head

1 to 11: $0.59

12 & up: $0.52

In Stock
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AN4H-10

1/4-28 x 9/16" Grip Airframe Bolt, Drilled Head & Shank

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AN4H-10A

1/4-28 x 9/16" Grip Airframe Bolt, Drilled Head

1 to 9: $1.29

10 & up: $1.18

In Stock
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AN4H-11

1/4-28 x 11/16" Grip Airframe Bolt, Drilled Head & Shank

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AN4H-11A

1/4-28 x 11/16" Grip Airframe Bolt, Drilled Head

1 to 11: $0.59

12 & up: $0.52

In Stock

AN4H-12

1/4-28 x 13/16" Grip Airframe Bolt, Drilled Head & Shank

1 to 11: $0.99

12 & up: $0.88

In Stock

AN4H-12A

1/4-28 x 13/16" Grip Airframe Bolt, Drilled Head

1 to 9: $1.19

10 to 99: $1.06

100 & up: $0.92

In Stock

AN4H-13A

1/4-28 x 15/16" Grip Airframe Bolt, Drilled Head

1 to 11: $0.79

12 & up: $0.70

In Stock
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AN4H-14

1/4-28 x 1 1/16" Grip Airframe Bolt, Drilled Head& Shank

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AN4H-14A

1/4-28 x 1 1/16" Grip Airframe Bolt, Drilled Head

1 to 11: $0.79

12 to 149: $0.70

150 & up: $0.60

In Stock

AN4H-15

1/4-28 x 1 3/16" Grip Airframe Bolt, Drilled Head & Shank

1 to 9: $1.19

10 to 99: $1.06

100 & up: $0.92

In Stock

AN4H-15A

1/4-28 x 1 3/16" Grip Airframe Bolt, Drilled Head

1 to 11: $0.89

12 & up: $0.79

In Stock

AN4H-16

1/4-28 x 1 5/16" Grip Airframe Bolt, Drilled Head & Shank

1 to 11: $0.89

12 & up: $0.82

In Stock

AN4H-16A

1/4-28 x 1 5/16" Grip Airframe Bolt, Drilled Head

1 to 11: $0.89

12 & up: $0.79

In Stock
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AN4H-17

1/4-28 x 1 7/16" Grip Airframe Bolt, Drilled Head & Shank

Call for QuoteNot In Stock
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AN4H-17A

1/4-28 x 1 7/16" Grip Airframe Bolt, Drilled Head

1 to 11: $0.89

12 & up: $0.79

In Stock
Call for Quote

AN4H-20

1/4-28 x 1 9/16" Grip Airframe Bolt, Drilled Head & Shank

Call for QuoteNot In Stock
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AN4H-20A

1/4-28 x 1 9/16" Grip Airframe Bolt, Drilled Head

1 to 11: $0.99

12 & up: $0.88

In Stock
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AN4H-21

1/4-28 x 1 11/16" Grip Airframe Bolt, Drilled Head & Shank

Call for QuoteNot In Stock
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AN4H-21A

1/4-28 x 1 11/16" Grip Airframe Bolt, Drilled Head

1 to 11: $0.99

12 & up: $0.88

In Stock
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AN4H-22

1/4-28 x 1 13/16" Grip Airframe Bolt, Drilled Head & Shank

Call for QuoteNot In Stock
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AN4H-22A

1/4-28 x 1 13/16" Grip Airframe Bolt, Drilled Head

1 to 11: $0.99

12 to 149: $0.88

150 & up: $0.76

In Stock
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AN4H-23

1/4-28 x 1 15/16" Grip Airframe Bolt, Drilled Head & Shank

Call for QuoteNot In Stock
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AN4H-23A

1/4-28 x 1 15/16" Grip Airframe Bolt, Drilled Head

1 to 9: $1.09

10 to 99: $0.97

100 to 999: $0.84

1000 & up: call   

In Stock
Call for Quote

AN4H-24

1/4-28 x 2 1/16" Grip Airframe Bolt, Drilled Head & Shank

Call for QuoteNot In Stock
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AN4H-24A

1/4-28 x 2 1/16" Grip Airframe Bolt, Drilled Head

1 to 9: $1.09

10 to 99: $0.97

100 & up: $0.84

In Stock
Call for Quote

AN4H-25

1/4-28 x 2 3/16" Grip Airframe Bolt, Drilled Head & Shank

Call for QuoteNot In Stock
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AN4H-25A

1/4-28 x 2 3/16" Grip Airframe Bolt, Drilled Head

1 to 9: $1.09

10 to 99: $0.97

100 & up: $0.84

In Stock
Call for Quote

AN4H-26

1/4-28 x 2 5/16" Grip Airframe Bolt, Drilled Head & Shank

Call for QuoteNot In Stock
notify me when available

AN4H-26A

1/4-28 x 2 5/16" Grip Airframe Bolt, Drilled Head

1 to 9: $1.19

10 to 99: $1.06

100 & up: $0.92

In Stock
Call for Quote

AN4H-27

1/4-28 x 2 7/16" Grip Airframe Bolt, Drilled Head & Shank

Call for QuoteNot In Stock
notify me when available

AN4H-27A

1/4-28 x 2 7/16" Grip Airframe Bolt, Drilled Head

1 to 9: $1.19

10 to 99: $1.06

100 & up: $0.92

In Stock
Call for Quote

AN4H-30

1/4-28 x 2 9/16" Grip Airframe Bolt, Drilled Head & Shank

Call for QuoteNot In Stock
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AN4H-30A

1/4-28 x 2 9/16" Grip Airframe Bolt, Drilled Head

1 to 9: $1.29

10 to 99: $1.15

100 & up: $1.00

In Stock
Call for Quote

AN4H-31

1/4-28 x 2 11/16" Grip Airframe Bolt, Drilled Head & Shank

Call for QuoteNot In Stock
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AN4H-31A

1/4-28 x 2 11/16" Grip Airframe Bolt, Drilled Head

1 to 9: $1.29

10 to 99: $1.15

100 & up: $1.00

In Stock
Call for Quote

AN4H-32

1/4-28 x 2 13/16" Grip Airframe Bolt, Drilled Head & Shank

Call for QuoteNot In Stock
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AN4H-32A

1/4-28 x 2 13/16" Grip Airframe Bolt, Drilled Head

1 to 9: $1.39

10 to 99: $1.24

100 & up: $1.08

In Stock
Call for Quote

AN4H-33

1/4-28 x 2 15/16" Grip Airframe Bolt, Drilled Head & Shank

Call for QuoteNot In Stock
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AN4H-33A

1/4-28 x 2 15/16" Grip Airframe Bolt, Drilled Head

1 to 9: $1.99

10 & up: $1.91

In Stock
Call for Quote

AN4H-34

1/4-28 x 3 1/16" Grip Airframe Bolt, Drilled Head & Shank

Call for QuoteNot In Stock
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AN4H-34A

1/4-28 x 3 1/16" Grip Airframe Bolt, Drilled Head

1 to 9: $1.79

10 to 99: $1.59

100 & up: $1.39

In Stock
Call for Quote

AN4H-35

1/4-28 x 3 3/16" Grip Airframe Bolt, Drilled Head & Shank

Call for QuoteNot In Stock
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AN4H-35A

1/4-28 x 3 3/16" Grip Airframe Bolt, Drilled Head

1 to 9: $1.59

10 to 99: $1.41

100 & up: $1.23

In Stock
Call for Quote

AN4H-36

1/4-28 x 3 5/16" Grip Airframe Bolt, Drilled Head & Shank

Call for QuoteNot In Stock
notify me when available

AN4H-36A

1/4-28 x 3 5/16" Grip Airframe Bolt, Drilled Head

1 to 7: $4.49

8 to 59: $4.03

60 & up: $3.57

In Stock
Call for Quote

AN4H-37

1/4-28 x 3 7/16" Grip Airframe Bolt, Drilled Head & Shank

Call for QuoteNot In Stock
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AN4H-37A

1/4-28 x 3 7/16" Grip Airframe Bolt, Drilled Head

1 to 9: $1.99

10 & up: $1.77

In Stock

AN4H-40

1/4-28 x 3 9/16" Grip Airframe Bolt, Drilled Head & Shank

1 to 5: $22.99

6 & up: $20.94

Not In Stock
notify me when available

AN4H-40A

1/4-28 x 3 9/16" Grip Airframe Bolt, Drilled Head

1 to 5: $11.99

6 to 35: $10.86

36 & up: $9.73

In Stock
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AN4H-41

1/4-28 x 3 11/16" Grip Airframe Bolt, Drilled Head & Shank

Call for QuoteNot In Stock
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Call for Quote

AN4H-41A

1/4-28 x 3 11/16" Grip Airframe Bolt, Drilled Head

Call for QuoteNot In Stock
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Call for Quote

AN4H-42

1/4-28 x 3 13/16" Grip Airframe Bolt, Drilled Head & Shank

Call for QuoteNot In Stock
notify me when available
Call for Quote

AN4H-42A

1/4-28 x 3 13/16" Grip Airframe Bolt, Drilled Head

Call for QuoteNot In Stock
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Call for Quote

AN4H-43

1/4-28 x 3 15/16" Grip Airframe Bolt, Drilled Head & Shank

Call for QuoteNot In Stock
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Call for Quote

AN4H-43A

1/4-28 x 3 15/16" Grip Airframe Bolt, Drilled Head

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Call for Quote

AN4H-44

1/4-28 x 4 1/16" Grip Airframe Bolt, Drilled Head & Shank

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AN4H-44A

1/4-28 x 4 1/16" Grip Airframe Bolt, Drilled Head

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AN4H-45A

1/4-28 x 4 3/16" Grip Airframe Bolt, Drilled Head

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AN4H-46

1/4-28 x 4 5/16" Grip Airframe Bolt, Drilled Head & Shank

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AN4H-46A

1/4-28 x 4 5/16" Grip Airframe Bolt, Drilled Head

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AN4H-47

1/4-28 x 4 7/16" Grip Airframe Bolt, Drilled Head & Shank

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Call for Quote

AN4H-47A

1/4-28 x 4 7/16" Grip Airframe Bolt, Drilled Head

Call for QuoteNot In Stock
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Call for Quote

AN4H-50A

1/4-28 x 4 9/16" Grip Airframe Bolt, Drilled Head

Call for QuoteNot In Stock
notify me when available