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AN8 Airframe Bolt - Drilled Head, 1/2-20 Thread

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AN8H bolts have a drilled head for safety wire and a 1/2-20 UNF thread. All AN8H bolts have a 0.680 inch thread length regardless of bolt length. This thread length is specifically designed to allow the use of a full-height nut plus one AN960-816 flat washer.

Grip Length refers to the length of the unthreaded portion of the shank. Grip lengths are available in 1/8" increments to match the thickness of the materials being bolted together (the threaded portion should never be positioned inside the hole). If your assembly is between sizes, select the next longer bolt and use additional AN960-816 and AN960-816L washers to take up the slack.

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, AN8H-20A) indicates an undrilled shank for use with a self-locking nut.

UHL: Under Head Length (also known as Full Shank Length or Overall Length not including bolt head)

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

AN8H-6

1/2-20 x 0.063 Grip Airframe Bolt, 0.84 UHL, Drill Hd+Shank

Call for QuoteNot In Stock
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AN8H-6A

1/2-20 x 0.063 Grip Airframe Bolt, 0.84 UHL, Drilled Head

1 to 7: $5.69

8 to 59: $5.12

60 & up: $4.54

In Stock
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AN8H-7

1/2-20 x 0.188 Grip Airframe Bolt, 0.97 UHL, Drill Hd+Shank

Call for QuoteNot In Stock
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AN8H-7A

1/2-20 x 0.188 Grip Airframe Bolt, 0.97 UHL, Drilled Head

1 to 7: $7.59

8 to 59: $6.85

60 & up: $6.10

In Stock

AN8H-10

1/2-20 x 0.313 Grip Airframe Bolt, 1.09 UHL, Drill Hd+Shank

1 to 5: $25.99

6 to 35: $23.70

36 & up: $21.41

In Stock

AN8H-10A

1/2-20 x 0.313 Grip Airframe Bolt, 1.09 UHL, Drilled Head

1 to 7: $3.69

8 & up: $3.31

In Stock
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AN8H-11

1/2-20 x 0.438 Grip Airframe Bolt, 1.22 UHL, Drill Hd+Shank

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AN8H-11A

1/2-20 x 0.438 Grip Airframe Bolt, 1.22 UHL, Drilled Head

1 to 7: $5.99

8 to 59: $5.39

60 & up: $4.79

In Stock
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AN8H-12

1/2-20 x 0.563 Grip Airframe Bolt, 1.34 UHL, Drill Hd+Shank

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AN8H-12A

1/2-20 x 0.563 Grip Airframe Bolt, 1.34 UHL, Drilled Head

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AN8H-13

1/2-20 x 0.688 Grip Airframe Bolt, 1.47 UHL, Drill Hd+Shank

1 to 7: $6.99

8 to 59: $6.30

60 & up: $5.61

In Stock

AN8H-13A

1/2-20 x 0.688 Grip Airframe Bolt, 1.47 UHL, Drilled Head

1 to 7: $6.49

8 & up: $5.85

Not In Stock
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AN8H-14

1/2-20 x 0.813 Grip Airframe Bolt, 1.59 UHL, Drill Hd+Shank

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AN8H-14A

1/2-20 x 0.813 Grip Airframe Bolt, 1.59 UHL, Drilled Head

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AN8H-15

1/2-20 x 0.938 Grip Airframe Bolt, 1.72 UHL, Drill Hd+Shank

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AN8H-15A

1/2-20 x 0.938 Grip Airframe Bolt, 1.72 UHL, Drilled Head

1 to 7: $6.99

8 to 59: $6.30

60 & up: $5.61

In Stock
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AN8H-16

1/2-20 x 1.063 Grip Airframe Bolt, 1.84 UHL, Drill Hd+Shank

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AN8H-16A

1/2-20 x 1.063 Grip Airframe Bolt, 1.84 UHL, Drilled Head

1 to 7: $6.99

8 & up: $6.30

In Stock
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AN8H-17A

1/2-20 x 1.188 Grip Airframe Bolt, 1.97 UHL, Drilled Head

Call for QuoteNot In Stock
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AN8H-21A

1/2-20 x 1.438 Grip Airframe Bolt, 2.22 UHL, Drilled Head

1 to 7: $8.99

8 to 59: $8.12

60 & up: $7.25

In Stock
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AN8H-22

1/2-20 x 1.563 Grip Airframe Bolt, 2.34 UHL, Drill Hd+Shank

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AN8H-22A

1/2-20 x 1.563 Grip Airframe Bolt, 2.34 UHL, Drilled Head

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Call for Quote

AN8H-23

1/2-20 x 1.688 Grip Airframe Bolt, 2.47 UHL, Drill Hd+Shank

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AN8H-23A

1/2-20 x 1.688 Grip Airframe Bolt, 2.47 UHL, Drilled Head

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AN8H-24

1/2-20 x 1.813 Grip Airframe Bolt, 2.59 UHL, Drill Hd+Shank

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AN8H-25

1/2-20 x 1.938 Grip Airframe Bolt, 2.72 UHL, Drill Hd+Shank

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AN8H-25A

1/2-20 x 1.938 Grip Airframe Bolt, 2.72 UHL, Drilled Head

1 to 7: $9.29

8 & up: $8.40

In Stock
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AN8H-26

1/2-20 x 2.063 Grip Airframe Bolt, 2.84 UHL, Drill Hd+Shank

Call for QuoteNot In Stock
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AN8H-27

1/2-20 x 2.188 Grip Airframe Bolt, 2.97 UHL, Drill Hd+Shank

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AN8H-27A

1/2-20 x 2.188 Grip Airframe Bolt, 2.97 UHL, Drilled Head

1 to 5: $14.99

6 to 35: $13.61

36 & up: $12.22

In Stock
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AN8H-30

1/2-20 x 2.313 Grip Airframe Bolt, 3.09 UHL, Drill Hd+Shank

Call for QuoteNot In Stock
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AN8H-30A

1/2-20 x 2.313 Grip Airframe Bolt, 3.09 UHL, Drilled Head

1 to 5: $14.99

6 & up: $13.61

In Stock
Call for Quote

AN8H-31

1/2-20 x 2.438 Grip Airframe Bolt, 3.22 UHL, Drill Hd+Shank

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AN8H-31A

1/2-20 x 2.438 Grip Airframe Bolt, 3.22 UHL, Drilled Head

Call for QuoteNot In Stock
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AN8H-32

1/2-20 x 2.563 Grip Airframe Bolt, 3.34 UHL, Drill Hd+Shank

1 to 5: $11.99

6 & up: $10.86

Not In Stock
notify me when available

AN8H-32A

1/2-20 x 2.563 Grip Airframe Bolt, 3.34 UHL, Drilled Head

1 to 5: $17.99

6 & up: $17.39

In Stock
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AN8H-33

1/2-20 x 2.688 Grip Airframe Bolt, 3.47 UHL, Drill Hd+Shank

Call for QuoteNot In Stock
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AN8H-33A

1/2-20 x 2.688 Grip Airframe Bolt, 3.47 UHL, Drilled Head

1 to 5: $14.99

6 & up: $14.50

Not In Stock
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AN8H-34

1/2-20 x 2.813 Grip Airframe Bolt, 3.59 UHL, Drill Hd+Shank

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AN8H-35

1/2-20 x 2.938 Grip Airframe Bolt, 3.72 UHL, Drill Hd+Shank

Call for QuoteNot In Stock
notify me when available

AN8H-35A

1/2-20 x 2.938 Grip Airframe Bolt, 3.72 UHL, Drilled Head

1 to 7: $6.99

8 & up: $6.30

In Stock
Call for Quote

AN8H-36

1/2-20 x 3.063 Grip Airframe Bolt, 3.84 UHL, Drill Hd+Shank

Call for QuoteNot In Stock
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AN8H-36A

1/2-20 x 3.063 Grip Airframe Bolt, 3.84 UHL, Drilled Head

1 to 5: $12.99

6 to 35: $12.23

36 & up: $11.47

In Stock