AN4C21

Aeronautical Standard Machine Bolt

email this to someone  
Description:

Fastener Length: 2-3/16", Thread: 1/4-28, Thread Length: 33/64

* Manufacturer certifications are shipped with your order FREE of charge
no image available
Add to Quote We are currently out of stock of this item. Click the button below to add this item to a quote and receive up to date pricing and availability by email.

Add to Quote

AN4C21 Datasheet Features and Specification

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.438 inches minimum and 0.516 inches maximum
Fastener Length:
2.141 inches minimum and 2.188 inches maximum
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
Grip Diameter:
0.246 inches minimum and 0.249 inches maximum
Shank Unthreaded Hole Diameter:
0.076 inches minimum first hole and 0.086 inches maximum first hole
Thread Diameter:
0.250 inches
Grip Length:
1.672 inches minimum and 1.703 inches maximum
Features Provided:
Finished head
Thready Qty Per Inch (tpi):
28
Min. Tensile Strength (psi):
125000 pounds per square inch
Hardness Rating:
26.0 rockwell c minimum overall and 32.0 rockwell c maximum overall
Distance From Head Largest Bearing Surface To Shank Hole Center:
1.984 inches minimum first hole and 2.016 inches maximum first hole
Material:
Steel comp 431 overall
Material Specification:
Mil-s-18732 mil spec single material response overall
Surface Treatment:
Passivate overall
Thread Series Designator:
Unf
Quick Specs
Thread Size 1/4
Thread Qty 28
Material Steel
Length 2-3/16

Additional Information

SKU / Model: AN4C21
NSN: 5306-00-156-2278
FSC: Bolts / 5306
Product Series: AN4C
Pack Weight (Approx.) 0.000 lb
Minimum Qty (MOQ): 2
Schedule B: 7318.15.8085
ECCN: EAR99
National Motor Freight: 093486, Bolts,nuts Or Screws, Noi (sub 3)
Download PDF Version
AN4C21_Military-Fasteners-com.pdf
Worldwide Shipping

* report an issue on this page

More AN4C machine bolts

AN4CH7A

length: 29/32", grip: 7/16", thread: 1/4-28 - corrosion resistant steel - undrilled shank - drilled head"

AN4CH6A

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

AN4CH5A

$2.10 Each, Length: 21/32in., grip: 3/16in., thread: 1/4-28 corrosion resistant steel undrilled shank drilled head

AN4CH4A

Length: 17/32in., grip: 1/16in., thread: 1/4-28, corrosion resistant steel, undrilled shank, drilled head

AN4CH3A

Fastener Length: 15/32", Hole Diameter: 1/32", Thread: 1/4-28, Thread Length: 13/32"

AN4CH24A

Machine Bolt 5306-00-182-1869, Fastener Length: 2-35/64in., Thread: 1/4-28, Thread Length: 15/32in.

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

Thanks for the quick service. Great price and quick service.

5.0

Great Delivery time, thanks for your fast response Trisha H

4.0

No matter the size of my order, I am always treated with a high degree of professional courtesy. The staff are very knowledgeable about the company and take a personal interest in each order.

5.0

Awesome customer service !

5.0