NAS1581F4T36

Bolt

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Description:

Fastener Length: 2-21/32", Thread: 1/4-28, Thread Length: 3/8"

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NAS1581F4T36 Datasheet Features and Specification

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.403 inches nominal
Fastener Length:
2.638 inches minimum and 2.668 inches maximum
Head Style:
Flat countersunk
Head Diameter:
0.3504 inches minimum and 0.3988 inches maximum
Grip Diameter:
0.248 inches nominal
Internal Drive Style:
Offset cruciform (torque set)
Thread Diameter:
0.250 inches
Grip Length:
2.653 inches nominal
Thready Qty Per Inch (tpi):
28
Min. Tensile Strength (psi):
3200 pounds per square inch
Countersink Angle:
99.0 degrees minimum and 101.0 degrees maximum
Material:
Steel comp 4130 overall or steel comp 4340 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-6047 mil spec 3rd material response overall
Surface Treatment:
Cadmium overall or passivate overall
Surface Treatment Specification:
Qq-p-416, ty 2, cl 2 fed spec 1st treatment response overall or qq-p-35 fed spec 2nd 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 2-21/32

Additional Information

SKU / Model: NAS1581F4T36
NSN: 5305-01-425-8825
FSC: Screws / 5305
Pack Weight (Approx.) 0.000 lb
Minimum Qty (MOQ): 1 EA
Schedule B: 7318.15.8085
ECCN: 9A991
Download PDF Version
NAS1581F4T36_Military-Fasteners-com.pdf
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