NAS1581C4H4

Close Tolerance Bolt

email this to someone  
Description:

Fastener Length: 21/32", Thread: 1/4-28, Thread Length: 27/64", NAS1581 series bolt

* Manufacturer certifications are shipped with your order FREE of charge
NAS1581C4H4
NAS1581C4H4
NAS1581C4H4
Add to Cart Up to qty 40 ships same day if ordered before 4pm EST
NAS1581C4H4 Price:
buy now
$10.89 Each
Quantity:
Pre-packaged bag qty: 5 ea
* Sold in increments of 5
Add item to quote  

NAS1581C4H4 Datasheet Features and Specification

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.378 inches minimum and 0.428 inches maximum
Fastener Length:
0.638 inches minimum and 0.668 inches maximum
Head Style:
Flat countersunk
Head Diameter:
0.350 inches minimum and 0.399 inches maximum
Grip Diameter:
0.2485 inches minimum and 0.2495 inches maximum
Internal Drive Style:
High-torque
Thread Diameter:
0.250 inches
Grip Length:
0.240 inches minimum and 0.260 inches maximum
Thready Qty Per Inch (tpi):
28
Min. Tensile Strength (psi):
160000 pounds per square inch
Countersink Angle:
99.0 degrees minimum and 101.0 degrees maximum
Surface Finish:
32.0 microinches grip
Surface Finish:
32.0 microinches threads
Material:
Iron alloy 660 overall
Material Specification:
Ams 5732 assn std single material response overall
Surface Treatment:
Passivate overall
Surface Treatment Specification:
Qq-p-35 fed spec single treatment response overall
Thread Series Designator:
Unjf
Specification Data:
80205-nas1581 professional/industrial association standard
Quick Specs
Thread Size 1/4
Thread Qty 28
Material Iron
Length 21/32

Additional Information

SKU / Model: NAS1581C4H4
NSN: 5305-00-163-2654
FSC: Screws / 5305
Product Series: NAS1581C
Pack Weight (Approx.) 0.049 lb
Minimum Qty (MOQ): 5
Schedule B: 7318.15.8085
ECCN: EAR99
National Motor Freight: 093486, Bolts,nuts Or Screws, Noi (sub 3)
Download PDF Version
NAS1581C4H4_Military-Fasteners-com.pdf
Worldwide Shipping In stock and ready to ship!

* report an issue on this page

More NAS1581C close tolerance bolts

NAS1581C5T6

Fastener Length: 57/64", Thread: 1/4-24, Thread Length: 33/64"

NAS1581C5T5

$6.30 EA, Fastener Length: 53/64in., Thread: 1/4-24, Thread Length: 33/64in.

NAS1581C3T16P

Fastener Length: 1-3/8", Thread: 10-32, Thread Length: 3/8"

NAS1581C3H5

Fastener Length: 11/16", Thread: 12-32, Thread Length: 3/8"

Product Image Gallery

Product code NAS1581C4H4
NAS1581C4H4
NAS1581C4H4
NAS1581C4H4

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

Best Support from you.

5.0

Very good service as always. Ive been a customer for years. My go to parts store.

4.0

I have been purchasing from Military Fasteners for 2 years! My go-to place!

4.5

I just want to say that I am really liking what is going on with Military Fasteners. The prices, the availability of items, the fast shipping. I really like the ease of ordering online. I have been to so many websites that are confusing to say the least, but yours is easy easy to use, clear and simple. I love being able to look up all my past orders and print out the invoices if need be. I am just thoroughly impressed with everything about Military Fasteners. Keep it up and you will always be on my bookmarks bar in the number one position!

5.0