NAS1581F4T2

Close Tolerance Screw

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Description:

length: 0.528", thread: 1/4-28 shear 100°, flush reduced head bolt - alloy steel offset cruciform

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NAS1581F4T2 Datasheet Features and Specification

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.250 inches nominal
Fastener Length:
0.513 inches minimum and 0.543 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:
Cross recess type iii
Thread Diameter:
0.250 inches
Grip Length:
0.115 inches minimum and 0.135 inches maximum
Thready Qty Per Inch (tpi):
28
Min. Tensile Strength (psi):
160000 pounds per square inch
Hardness Rating:
36.0 rockwell c minimum overall and 40.0 rockwell c maximum overall
Countersink Angle:
99.0 degrees minimum and 101.0 degrees maximum
Surface Finish:
32.0 microinches grip
Surface Finish:
32.0 microinches threads
Material:
Steel comp e4340 overall or steel comp 8740 overall or steel comp 8735 overall or steel comp 6150 overall
Surface Treatment:
Cadmium overall and chromate overall
Surface Treatment Specification:
Qq-p-416,ty2,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 17/32

Additional Information

SKU / Model: NAS1581F4T2
NSN: 5305-01-448-5088
FSC: Screws / 5305
Pack Weight (Approx.) 0.000 lb
Minimum Qty (MOQ): 50
National Motor Freight: 093486, Bolts,nuts Or Screws, Noi (sub 3)
Download PDF Version
NAS1581F4T2_Military-Fasteners-com.pdf
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NAS1581F4T8

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NAS1581F4T7

length: 0.841", thread: 1/4-28 shear 100°, flush reduced head bolt - alloy steel offset cruciform

NAS1581F4T6

$0.90 Each, Length: 0.778in., thread: 1/4-28 shear, flush reduced head bolt, alloy steel offset cruciform

NAS1581F4T5

Length: 0.715in., thread: 1/4-28 shear, flush reduced head bolt, alloy steel offset cruciform

NAS1581F4T4

$0.72 Each, Length: 0.653in., thread: 1/4-28 shear, flush reduced head bolt, alloy steel offset cruciform

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Extremely fast shipping and an excellent product. Will use again.

5.0

Military Fasteners is first on my list for the hard to find items so often associated with Government Projects. Brittany and Michael have always been quick to respond and nothing but professional in every way. I look forward to a continued relationship with Military Fasteners.

5.0

Everything about this order was textbook perfect. As always,when I order something from Military Fasteners I get what I ordered when it arrives on time. No surprises or disappointments. Good job!

4.0

Trisha Hawkins and her team at Military Fasteners are absolutely incredible. We do a lot of Government and Military work and due to this there are a ton of restrictions with what products we can use. I called Military Fasteners (MF) with an extremely HOT request. Trisha was able to source those part numbers, tell me they were in stock and ready to ship. I ordered these on a Wednesday at 4:00pm. They shipped the same exact Wednesday, we received that weeks Friday, even though we were guaranteed Monday/Tuesday. Trisha - THANK YOU! Trisha's Team - THANK YOU! I will only be ordering my military hardware from you all.

5.0