AN4DD4A

Aeronautical Standard Bolt

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Description:

Fastener Length: 17/32", Thread: 1/4-28, Thread Length: 15/32"

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AN4DD4A Datasheet Features and Specification

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.469 inches minimum
Fastener Length:
0.531 inches nominal
Head Style:
Hexagon
Head Height:
0.140 inches minimum and 0.172 inches maximum
Width Between Flats:
0.428 inches minimum and 0.440 inches maximum
Thread Diameter:
0.250 inches
Grip Length:
0.062 inches nominal
Features Provided:
Finished head
Thready Qty Per Inch (tpi):
28
Min. Tensile Strength (psi):
62000 pounds per square inch
Material:
Aluminum alloy 2024 overall or aluminum alloy overall
Material Specification:
Qq-a-267 fed spec 1st material response overall or qq-a-268 fed spec 1st material response overall or mil-w-7986 mil spec 2nd material response overall
Surface Treatment:
Oxide film overall and anodize overall
Surface Treatment Specification:
Mil-c-5541 mil spec 1st treatment response overall and mil-a-8625 mil spec 2nd treatment response overall
Thread Series Designator:
Unf
Quick Specs
Thread Size 1/4
Thread Qty 28
Material Aluminum
Length 1/2

Additional Information

SKU / Model: AN4DD4A
NSN: 5306-00-151-1076
FSC: Bolts / 5306
Pack Weight (Approx.) 0.000 lb
Minimum Qty (MOQ): 5 EA
Schedule B: 7616.10.9090
ECCN: 9A991
National Motor Freight: 013280, Alum Bolts
Download PDF Version
AN4DD4A_Military-Fasteners-com.pdf
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AN4DDH11A

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I have been dealing with you folks for years as a corporation customer and personally. You are the industry standard on quality of product and service.

5.0

I placed this order late at 4:15 over the phone, 15 minutes past the cut off time.(Which rarely happens) It was critical for us to get the sparkplugs as a customer had called me and scheduled to bring his plane in the next day to have all his plugs replaced. My sales agent said she would personally go and pull the product so it would ship that day, and she did what she said. She saved me the embarrassment of telling my customer I forgot to order his parts on time and making him reschedule a maintenance visit. I am thankful you have people like her who really care about the customer and want to put in the extra effort for customer service. In my aircraft maintenance business I purchase everything I can first from Military Fasteners before I go looking for other venders. I use Military Fasteners because of the great customer service, free shipping (which is one day ground), large selection on hardware and materials, and competitive prices. I am a loyal customer and I order 2-3+ times a week. Thank you for the great service that your people provide at Military Fasteners.

5.0

Youre team did an excellent job as usual. The sheet metal and grommets arrived in excellent condition and were very well priced which I appreciate. Thanks again. Doug

4.0

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