AN4-21A

Aeronautical Standard Machine Bolt

email this to someone  
Description:

length: 2-5/32", grip: 1-11/16", thread: 1/4-28, cadmium plated steel, undrilled shank

* Manufacturer certifications are shipped with your order FREE of charge
AN4-21A
AN4-21A
AN4-21A
AN4-21A
AN4-21A
AN4-21A
Add to Cart Up to qty 800 ships same day if ordered before 4pm EST
AN4-21A Price:
buy now
$0.73 Each
Quantity:
Pre-packaged bag qty: 50 ea
* Sold in increments of 50
Add item to quote  

AN4-21A 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:
1.688 inches
Features Provided:
Finished head
Fastener Length:
2.156 inches
Thread Length:
0.468 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: AN421A
NSN: 5306-00-151-1415
FSC: Bolts / 5306
Product Series: AN4
Pack Weight (Approx.) 1.770 lb
Minimum Qty (MOQ): 50
ECCN: EAR99
National Motor Freight: 093486, Bolts,nuts Or Screws, Noi (sub 3)
Download PDF Version
AN4-21A_Military-Fasteners-com.pdf
Worldwide Shipping In stock and ready to ship!

* report an issue on this page

Frequently bought together

Other customers frequently bought these along with AN4-21A

Picture of AN4-20A

AN4-20A
Machine Bolt

in Bolts

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

Picture of AN4-22A

AN4-22A
Machine Bolt

in Bolts

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

Picture of AN3-6A

AN3-6A
Machine Bolt

in Bolts

Length: 25/32", grip: 3/8", thread: 10-32, cadmium plated steel, undrilled shank, AN3 series bolt

Picture of AN4-17A

AN4-17A
Machine Bolt

in Bolts

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

Picture of AN4-6A

AN4-6A
Machine Bolt

in Bolts

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

Picture of AN4-24A

AN4-24A
Machine Bolt

in Bolts

length: 2-17/32", grip: 2-1/16", 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

Fastener Length: 6-13/16", Hole Diameter: 1/32", Thread: 1/4-28, Thread Length: 33/64"

AN4H60A

Fastener Length: 6-", Hole Diameter: 1/32", Thread: 1/4-28, Thread Length: 15/32"

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 AN4-21A
AN4-21A
AN4-21A
AN4-21A
AN4-21A
AN4-21A
AN4-21A

Have a question

If you require a quote on this or any product please visit our quote request page »

Browse our frequently asked questions page.

You may contact us by phone at +1 (904) 543-6395 or email us using our contact form.

Our hours of operation are 8:00am - 6:00pm EST

Customer Reviews

Google View our Google profile

Very good service, as usual. Order was complete and correct. It is easy to order on your website and the deliveries are always in the specified time.

5.0

My orders have been delivered on time or earlier all packaged well and in good shape. Thank you Military Fasteners.

5.0

Hard to find bolts are never hard to find with Military Fasteners!

5.0

Fantastic experience. I ordered the wrong part.....1 call and an RMA issued with the correct part put on the way. Impressive service. Locked me in as a customer for life!

5.0