NAS1581F4T4X

Bolt

email this to someone  
Description:

Fastener Length: 21/32", Thread: 1/4-28, Thread Length: 3/8"

* 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

NAS1581F4T4X Datasheet Features and Specification

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.403 inches nominal
Fastener Length:
0.638 inches minimum and 0.668 inches maximum
Head Style:
Flat countersunk
Head Diameter:
0.3504 inches minimum and 0.3998 inches maximum
Shoulder Diameter:
0.2641 inches minimum first shoulder and 0.2651 inches maximum first shoulder
Shoulder Length:
0.240 inches minimum first shoulder and 0.260 inches maximum first shoulder
Internal Drive Style:
Offset cruciform (torque set)
Thread Diameter:
0.250 inches
Thready Qty Per Inch (tpi):
28
Countersink Angle:
99.0 degrees minimum and 101.0 degrees maximum
Shoulder Shape:
Round first shoulder
Material:
Steel comp 4140 overall or steel comp e4340 overall or steel comp 8740 overall
Material Specification:
Mil-s-5626 mil spec 1st material response overall or mil-s-5000 mil spec 2nd material response overall or mil-s-6049 mil spec 3rd material response overall
Surface Treatment:
Cadmium overall and chromate overall
Surface Treatment Specification:
Qq-p-416 ty 2 cl2 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 Steel
Length 21/32

Additional Information

SKU / Model: NAS1581F4T4X
NSN: 5305-01-399-3101
FSC: Screws / 5305
Pack Weight (Approx.) 0.000 lb
Minimum Qty (MOQ): 25 EA
Schedule B: 7318.15.8085
ECCN: 9A991
National Motor Freight: 093470, Bolts / Nuts I / S
Download PDF Version
NAS1581F4T4X_Military-Fasteners-com.pdf
Worldwide Shipping

* report an issue on this page

More close tolerance bolts

NAS1581F8T13

Fastener Length: 1-19/32", Thread: 1/2-20, Thread Length: 49/64"

NAS1581F8T11

Fastener Length: 1-15/32", Thread: 1/2-20, Thread Length: 49/64"

NAS1581F6T9

Fastener Length: 1-1/8", Thread: 3/8-24, Thread Length: 19/32"

NAS1581F6T8

Fastener Length: 1-7/64", Thread: 3/8-24, Thread Length: 39/64"

NAS1581F6T6

Fastener Length: 63/64", Thread: 3/8-24, Thread Length: 39/64"

NAS1581F6T16

Fastener Length: 1-39/64", Thread: 3/8-24, Thread Length: 19/32"

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

The customer service from Trisha Hawkins at Military Fasteners was exceptional.

5.0

If your looking for a company that can provide you with technical help on a product that they sold you, this is not the place to buy anything. But they will tell you how sorry they are.

5.0

I have been a customer since Fullerton Air Parts (Flo Irwin). That should speak volumes of the service I have received from Military Fasteners. In the early days, I had a variety of planes and was based out of Orange County Airport. At the time, the airport was surrounded by bean fields. I, and some of my friends, would frequently fly into Fullerton airport for lunch, the pick up whatever supplies we needed from Flo. She was a great lady, and I am glad that she passed on such a wonderful legacy. I am certain that she would be very proud of what she started, and proud of you all for building on her meager beginnings.

4.0

Fast, efficient, professional experience

5.0