NAS1581F4T4

Close Tolerance Screw

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Description:

length: 0.653", thread: 1/4-28 shear, flush reduced head bolt, alloy steel offset cruciform

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NAS1581F4T4
NAS1581F4T4
NAS1581F4T4
NAS1581F4T4
NAS1581F4T4
NAS1581F4T4
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NAS1581F4T4 Datasheet Features and Specification

Countersink Angle:
100.0 degrees
Fastener Length:
0.653 inches
Grip Diameter:
Between 0.248 inches and 0.249 inches
Grip Length:
Between 0.240 inches and 0.260 inches
Hardness Rating:
36.0 rockwell c and 40.0 rockwell c
Head Diameter:
Between 0.350 inches and 0.399 inches
Head Style:
Flat countersunk
Internal Drive Style:
Offset cruciform (torque set)
Material:
Steel comp e4340 or steel comp 4140 or steel comp 8740 or steel comp 8735 or steel comp 6150
Min. Tensile Strength (psi):
160000 pounds per square inch
Thread Diameter:
0.250 inches
Surface Finish:
32.0 microinches grip
Surface Finish:
32.0 microinches threads
Surface Treatment:
Cadmium or chromate
Surface Treatment Specification:
Cl2 federal specification single treatment response ty2 qq-p-416
Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.403 inches
Thread Qty Per Inch (tpi):
28
Thread Series Designator:
Unjf (fine thread with external controlled root radius)
Quick Specs
Thread Size 1/4
Thread Qty 28
Thread Series UNJF
Thread Class 3A
Material Steel
Length 5/8

Additional Information

SKU / Model: NAS1581F4T4
NSN: 5305-01-417-4446
FSC: Screws / 5305
Product Series: NAS1581F4T
Pack Weight (Approx.) 0.000 lb
Minimum Qty (MOQ): 50
ECCN: EAR99
National Motor Freight: 093486, Bolts,nuts Or Screws, Noi (sub 3)
Download PDF Version
NAS1581F4T4_Military-Fasteners-com.pdf
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NAS1581F4T9

Length: 0.965in., thread: 1/4-28 shear, flush reduced head bolt, alloy steel offset cruciform

NAS1581F4T8

length: 0.903", thread: 1/4-28 shear 100°, flush reduced head bolt - alloy steel offset cruciform

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

NAS1581F4T3

Length: 0.590in., thread: 1/4-28 shear, flush reduced head bolt, alloy steel offset cruciform

Product Image Gallery

Product code NAS1581F4T4
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NAS1581F4T4

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