NAS1581A4T4

Close Tolerance Screw

email this to someone  
Description:

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

* Manufacturer certifications are shipped with your order FREE of charge
NAS1581A4T4
NAS1581A4T4
NAS1581A4T4
NAS1581A4T4
NAS1581A4T4
NAS1581A4T4
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

NAS1581A4T4 Datasheet Features and Specification

Thread Series Designator:
Unjf (fine thread with external controlled root radius)
Thread Length:
Between 0.378 inches and 0.428 inches
Thread Qty Per Inch (tpi):
28
Thread Direction:
Right-hand
Thread Class:
3a
Thread Diameter:
0.250 inches
Surface Treatment Specification:
Class 2 federal specification single treatment response type 2 qq-p-416
Surface Finish:
32.0 microinches grip
Surface Treatment:
Cadmium and chromate
Specification Data:
80205-nas1581 professional/industrial association standard
Surface Finish:
32.0 microinches threads
Internal Drive Style:
Offset cruciform (torque set)
Material:
Stee
Min. Tensile Strength (psi):
160000 pounds per square inch
Head Style:
Flat countersunk
Head Diameter:
Between 0.350 inches and 0.399 inches
Hardness Rating:
36.0 rockwell c and 40.0 rockwell c
Grip Length:
Between 0.240 inches and 0.260 inches
Grip Diameter:
Between 0.2485 inches and 0.2495 inches
Countersink Angle:
100.0 degrees
Fastener Length:
Between 0.638 inches and 0.668 inches
Quick Specs
Thread Size 1/4
Thread Qty 28
Thread Series UNJF
Thread Class 3A

Additional Information

SKU / Model: NAS1581A4T4
NSN: 5305-01-057-3070
FSC: Screws / 5305
Product Series: NAS1581A
Pack Weight (Approx.) 0.000 lb
Minimum Qty (MOQ): 10
Schedule B: 7318.15.8085
ECCN: EAR99
National Motor Freight: 093486, Bolts,nuts Or Screws, Noi (sub 3)
Download PDF Version
NAS1581A4T4_Military-Fasteners-com.pdf
Worldwide Shipping

* report an issue on this page

More NAS1581A close tolerance screws

NAS1581A4T5

Fastener Length: 23/32in., Thread: 1/4-28, Thread Length: 3/8in. screw

NAS1581A3T8

5305-01-477-2865 Close Tolerance Screw

Product Image Gallery

Product code NAS1581A4T4
NAS1581A4T4
NAS1581A4T4
NAS1581A4T4
NAS1581A4T4
NAS1581A4T4
NAS1581A4T4

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

Amelia Fato, excellent customer service. Able to provide quick response on requested quotes.

5.0

Paige Twombly is fantastic to work with! She is the definition of fast, professional and efficient!!!

5.0

Order received thanks. Easy to order online, fast response by Military Fasteners, competitive pricing and hassle free. Good job again, many thanks.

5.0

Your staff is courteous and well informed about your product line. Your inventory is excellent and competitively priced. The shipment always arrives as advertized and the boxes are well packed. I will continue to order my aircraft supplies from military fasteners

4.0