NAS1581C4H4

Close Tolerance Bolt

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Description:

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

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NAS1581C4H4
NAS1581C4H4
NAS1581C4H4
Add to Cart Up to qty 40 ships same day if ordered before 4pm EST
NAS1581C4H4 Price:
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$10.89 Each
Quantity:
Pre-packaged bag qty: 5 ea
* Sold in increments of 5
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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
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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

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Customer Reviews

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Very good process

5.0

The products sent allowed the repair to be completed in a timely manner. Thank you for Military Fasteners being there and having parts available to allow our vintage aircraft to continue flight.

5.0

nice custom service

5.0

Wow, great quick order. Website is easy to navigate and orders are shipped quickly. I have already passed along to others as having the right parts and quick shipping. Thanks, Danny S, Louisiana

4.0