AN4-21

Aeronautical Standard Machine Bolt

email this to someone

Description:

length: 2-5/32", grip: 1-11/16", thread: 1/4-28, cadmium plated steel, drilled shank, airframe, AN4 series bolt

* Manufacturer certifications are shipped with your order FREE of charge

Add to Cart Up to qty 350 ships same day if ordered before 4pm EST

AN4-21 Price:	buy now $1.06 Each
Quantity: Pre-packaged bag qty: 25 ea
* Sold in increments of 25

Add item to quote

AN4-21 Datasheet Features and Specification

Distance From Head Largest Bearing Surface To Shank Hole Center:

1.984 inches first hole and 2.016 inches first hole

Fastener Length:

Between 2.141 inches and 2.188 inches

Features Provided:

Finished head

Grip Length:

Between 1.672 inches and 1.703 inches

Hardness Rating:

26.0 rockwell c and 32.0 rockwell c

Head Height:

Between 0.140 inches and 0.172 inches

Head Style:

Hexagon

Material:

Steel comp 4140 or steel comp 8740 or steel comp 8630 or steel comp 8735 or steel comp 4130 or steel comp 4037

Material Specification:

Mil-s-5626 military specification 1st material response or mil-s-6049 military specification 2nd material response or mil-s-6050 military specification 3rd material response or mil-s-6098 military specification 4th material response or mil-s-6758 military specification 5th material response or ams 6300 assn standard 6th material response

Min. Tensile Strength (psi):

125000 pounds per square inch

Thread Diameter:

0.250 inches

Shank Unthreaded Hole Diameter:

0.076 inches first hole and 0.086 inches first hole

Surface Treatment:

Cadmium and chromate

Surface Treatment Specification:

Qq-p-416 type 2 cl 3 federal specification all treatment responses

Thread Class:

Thread Direction:

Right-hand

Thread Length:

Between 0.438 inches and 0.516 inches

Thread Qty Per Inch (tpi):

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:	AN421
NSN:	5306-00-151-1004
FSC:	Bolts / 5306
Product Series:	AN4
Pack Weight (Approx.)	0.869 lb
Minimum Qty (MOQ):	25
ECCN:	EAR99
National Motor Freight:	093486, Bolts,nuts Or Screws, Noi (sub 3)
Download PDF Version AN4-21_Military-Fasteners-com.pdf

* report an issue on this page

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: 29/32in., grip: 7/16in., 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 AN4-21

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

Joel G.

Military Fasteners was recently added to our list of approved vendors and so far it has been an absolute pleasure working with them. The speed, communication, and coordination with our orders so far have been absolutely above and beyond. Sarah is an absolute all star and made the ordering process quick and seamless. 10/10 Would recommend to anyone looking for products!

5.0

Eva W.

Devin from shipping dept. was a fantastic help! Great support and service.

5.0

Marlon B.

I have ordered from Military Fasteners for years and have never had a complaint! And do not expect to have a complaint in the future.

4.0

Westin K.

Lots of items and great pricing. Makes shopping for parts so much easier to get everything at the best pricing in one place. You have made my job a whole lot easier!

4.0