NAS1581F8T11

Bolt

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Description:

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

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NAS1581F8T11 Datasheet Features and Specification

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.763 inches minimum and 0.773 inches maximum
Fastener Length:
1.441 inches minimum and 1.471 inches maximum
Head Style:
Flat countersunk
Head Diameter:
0.6901 inches minimum and 0.7611 inches maximum
Grip Diameter:
0.4985 inches minimum and 0.4995 inches maximum
Internal Drive Style:
Offset cruciform (torque set)
Thread Diameter:
0.500 inches
Grip Length:
0.678 inches minimum and 0.698 inches maximum
Thready Qty Per Inch (tpi):
20
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
Part Name Assigned By Controlling Agency:
Bolt, shear, 100 degree flush reduced head, offset cruciform, 95 ksi fsu
Material:
Steel comp e4340 overall or steel comp 4140 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, ty 2, cl 2 fed spec single treatment response overall
Thread Series Designator:
Unjf
Specification Data:
80205-nas1581 professional/industrial association standard
Quick Specs
Thread Size 1/2
Thread Qty 20
Material Steel
Length 1-15/32

Additional Information

SKU / Model: NAS1581F8T11
NSN: 5305-01-585-4560
FSC: Screws / 5305
Pack Weight (Approx.) 0.000 lb
Minimum Qty (MOQ): 5 EA
Schedule B: 7318.15.8085
ECCN: 9A991
Download PDF Version
NAS1581F8T11_Military-Fasteners-com.pdf
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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"

NAS1581F6H9

Fastener Length: 1-5/32", Thread: 3/8-24, Thread Length: 39/64"

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