AN175-21A

Aeronautical Standard Close Tolerance Bolt

email this to someone

Description:

Fastener Length: 2-1/4", Thread: 1/4-24, Thread Length: 37/64

* Manufacturer certifications are shipped with your order FREE of charge

Add to Cart Up to qty 12 ships same day if ordered before 4pm EST

Add item to quote

AN175-21A Datasheet Features and Specification

Thread Class:

Thread Direction:

Right-hand

Thread Length:

0.499 inches minimum and 0.578 inches maximum

Fastener Length:

2.203 inches minimum and 2.250 inches maximum

Head Style:

Hexagon

Head Height:

0.172 inches minimum and 0.204 inches maximum

Width Between Flats:

0.490 inches minimum and 0.502 inches maximum

Grip Diameter:

0.3112 inches minimum and 0.3117 inches maximum

Thread Diameter:

0.312 inches

Grip Length:

1.672 inches minimum and 1.704 inches maximum

Thready Qty Per Inch (tpi):

Min. Tensile Strength (psi):

125000 pounds per square inch

Hardness Rating:

26.0 rockwell c minimum overall and 32.0 rockwell c maximum overall

Surface Finish:

53.0 microinches grip

Surface Finish:

63.0 microinches bearing surface of head

Material:

Steel comp 8740 overall or steel comp 8630 overall or steel comp 8735 overall or steel comp 4140 overall or steel comp 4037 overall

Surface Treatment:

Cadmium overall and chromate overall

Surface Treatment Specification:

Qq-p-416 ty 2 cl 3 fed spec all treatment responses overall

Thread Series Designator:

Unf

Quick Specs

Thread Size	1/4
Thread Qty	24
Material	Steel
Length	2-1/4

Additional Information

SKU / Model:	AN17521A
NSN:	5306-00-638-8247
FSC:	Bolts / 5306
Product Series:	AN175
Pack Weight (Approx.)	0.067 lb
Minimum Qty (MOQ):	1
Schedule B:	7318.15.8085
ECCN:	9A991
National Motor Freight:	093486, Bolts,nuts Or Screws, Noi (sub 3)
Download PDF Version AN175-21A_Military-Fasteners-com.pdf

* report an issue on this page

More AN175 close tolerance bolts

AN175H7A

Fastener Length: 0-63/64", Hole Diameter: 1/16", Thread: 1/4-24, Thread Length: 37/64"

AN175H5A

Fastener Length: 3/4", Hole Diameter: 1/16", Thread: 1/4-24, Thread Length: 37/64"

AN175H35

Fastener Length: 3-45/64", Hole Diameter: 1/16", Thread: 1/4-24, Thread Length: 21/32"

AN175H24

$8.34 EA, Fastener Length: 2-19/32in., Hole Diameter: 1/16in., Thread: 1/4-24

AN175H22A

Fastener Length: 2-11/32in., Hole Diameter: 1/16in., Thread: 1/4-24, Thread Length: 17/32in.

AN175H22

Fastener Length: 2-11/32", Hole Diameter: 1/16", Thread: 1/4-24, Thread Length: 17/32"

Product Image Gallery

Product code AN175-21A

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

View our Google profile

Justin B.

ABSOLUTELY AWESOME!!!!

5.0

Callum D.

I have been a regular customer of military fasteners since 2018. I have always been satisfied with my purchases and quality of product.

5.0

Davis A.

Everything arrived quickly and correctly. I'm a longtime customer and find your service to be always top of the line.

5.0

Mackenzie M.

I have used Military Fasteners for all my parts for a number of years and have never had a problem with my orders. Fast shipping, correct parts picking and lots of inventory. Thanks for your service.

5.0

AN175-21A Price:	buy now $52.21 Each
Quantity: Pre-packaged bag qty: 1 ea