AN4-20A

Aeronautical Standard Machine Bolt

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Description:

Length: 2-1/32", grip: 1-9/16", thread: 1/4-28, cadmium plated steel, undrilled shank

* Manufacturer certifications are shipped with your order FREE of charge
AN4-20A
AN4-20A
AN4-20A
AN4-20A
AN4-20A
AN4-20A
Add to Cart Up to qty 1200 ships same day if ordered before 4pm EST
AN4-20A Price:
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$0.77 Each
Quantity:
Pre-packaged bag qty: 50 ea
* Sold in increments of 50
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AN4-20A Datasheet Features and Specification

Thread Direction:
Right-hand
Thread Diameter:
0.250 inches
Thread Class:
3a
Surface Treatment Specification:
Class 3 federal specification all treatment responses type 2 qq-p-416
Surface Treatment:
Cadmium and chromate
Min. Tensile Strength (psi):
125000 pounds per square inch
Material Specification:
Mil-b-6812 military specification all material responses
Material:
Steel
Head Style:
Hexagon
Head Height:
Between 0.140 inches and 0.172 inches
Hardness Rating:
26.0 rockwell c and 32.0 rockwell c
Grip Length:
1.562 inches
Features Provided:
Finished head
Fastener Length:
2.031 inches
Thread Length:
0.469 inches
Thread Qty Per Inch (tpi):
28
Thread Series Designator:
Unf (fine thread)
Width Between Flats:
Between 0.428 inches and 0.440 inches
Quick Specs
Thread Size 1/4
Thread Qty 28
Thread Series UNF
Thread Class 3A
Material Steel

Additional Information

SKU / Model: AN420A
NSN: 5306-00-151-1416
FSC: Bolts / 5306
Product Series: AN4
Pack Weight (Approx.) 1.670 lb
Minimum Qty (MOQ): 50
ECCN: EAR99
National Motor Freight: 093486, Bolts,nuts Or Screws, Noi (sub 3)
Download PDF Version
AN4-20A_Military-Fasteners-com.pdf
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length: 2-5/32", grip: 1-11/16", thread: 1/4-28, cadmium plated steel, undrilled shank

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length: 1-29/32", grip: 1-7/16", thread: 1/4-28, cadmium plated steel, undrilled shank, AN4 series bolt

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length: 2-9/32", grip: 1-13/16", thread: 1/4-28, cadmium plated steel, undrilled shank, hexagon head, AN4 series bolt

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length: 1-13/32", grip: 15/16", thread: 1/4-28, cadmium plated steel, undrilled shank, AN4 series bolt

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length: 1-17/32", grip: 1-1/16", thread: 1/4-28, cadmium plated steel, undrilled shank

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length: 1-25/32", grip: 1-5/16", thread: 1/4-28, cadmium plated steel, undrilled shank, AN4 series bolt

More AN4 machine bolts

AN4H7A

$1.02 Each, airframe bolt 1/4-28 Thread, 7/16in. Grip, 29/32in. Length drilled head undrilled shank

AN4H7

length: 29/32", grip: 7/16", thread: 1/4-28, cadmium plated steel drilled shank - drilled head

AN4H6A

Length: 25/32in., grip: 5/16in., thread: 1/4-28, cadmium plated steel undrilled shank drilled head

AN4H66A

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AN4H60A

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AN4H6

$1.50 Each, Length: 25/32in., grip: 5/16in., thread: 1/4-28, cadmium plated steel drilled shank drilled head

Product Image Gallery

Product code AN4-20A
AN4-20A
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AN4-20A

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Online ordering process is very straight forward, easy to use.

5.0

Recently my avionics technician and I were installing a component in my aircraft and there were some critical fasteners missing from the manufactures package. This stopped the entire process. I called Military Fasteners after finding the parts on line, and Trisha answered the phone. I told her the situation and that I needed them ASAP. I found the parts gave her the part number and she confirmed they were in stock. This was about 430 in the afternoon just before closing. Trisha was kind and professional got the parts out the door that evening even though it was after the shipping cut off. Saved the day. I can tell you this entire company is represented by Trisha, anything they can do to help you out of a jamb they will absolutely go the extra mile and Trisha is the go to person. I am sure there are others there with her same attitude and professionalism. This is a great resource for all your fasteners needs.

5.0

Military Fasteners always delivered on what I purchased. And what I returned Military Fasteners is prompt on returning it as crediting my account. I only order for myself, so I'm quite satisfied the way Military Fasteners takes care of me only as a occasional customer. Thank you Military Fasteners Personnel.

5.0

Great service, always spot on and very expedient! Excellent working with Paige Twombly for quick turnarounds, much appreciated.

5.0