NAS1581F4R14

Close Tolerance Bolt

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Description:

Fastener Length: 1-9/32", Thread: 1/4-28, Thread Length: 3/8

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NAS1581F4R14 Datasheet Features and Specification

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.403 inches nominal
Fastener Length:
1.263 inches minimum and 1.293 inches maximum
Head Style:
Flat countersunk
Head Diameter:
0.3988 inches nominal
Grip Diameter:
0.2490 inches minimum and 0.2495 inches maximum
Internal Drive Style:
Torque-set ribbed
Thread Diameter:
0.250 inches
Grip Length:
0.865 inches minimum and 0.885 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 4140 overall or 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,type 2,class 2 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 1-9/32

Additional Information

SKU / Model: NAS1581F4R14
NSN: 5305-01-334-3622
FSC: Screws / 5305
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
NAS1581F4R14_Military-Fasteners-com.pdf
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NAS1581F8T11

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NAS1581F6T9

Fastener Length: 1-1/8", Thread: 3/8-24, Thread Length: 19/32"

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"

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