7S39-4A4

Screw

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Description:

Fastener Length: 43/64", Thread: 1/4-28, Thread Length: 13/32"

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7S39-4A4 Datasheet Features and Specification

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.400 inches minimum and 0.450 inches maximum
Fastener Length:
0.660 inches minimum and 0.690 inches maximum
Head Style:
Flat countersunk
Head Diameter:
0.389 inches minimum and 0.394 inches maximum
Internal Drive Style:
Cross recess type ii
Thread Diameter:
0.250 inches
Thready Qty Per Inch (tpi):
28
Min. Tensile Strength (psi):
160000 pounds per square inch
Hardness Rating:
36.0 rockwell c minimum and 40.0 rockwell c maximum
Countersink Angle:
99.0 degrees minimum and 101.0 degrees maximum
Screw Material:
Steel comp 4130
Screw Material Specification:
Mil-s-6758,cond d4 mil spec single material response
Screw Surface Treatment:
Cadmium and chromate
Screw Surface Treatment Specification:
Qq-p-416,type 2class 3 fed spec single treatment response
Thread Series Designator:
Unf
Quick Specs
Thread Size 1/4
Thread Qty 28
Material Steel
Length 11/16

Additional Information

SKU / Model: 7S394A4
NSN: 5305-00-826-2452
FSC: Screws / 5305
Product Series: 7S39
Pack Weight (Approx.) 0.000 lb
Minimum Qty (MOQ): 5 EA
Schedule B: 7318.15.6080
ECCN: EAR99
National Motor Freight: 093486, Bolts,nuts Or Screws, Noi (sub 3)
Download PDF Version
7S39-4A4_Military-Fasteners-com.pdf
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More 7S39 machine screws

7S39-4A8

Fastener Length: 59/64", Thread: 1/4-28, Thread Length: 13/32"

7S39-4A7

Fastener Length: 7/8", Thread: 1/4-28, Thread Length: 7/16"

7S39-4A5

Fastener Length: 47/64", Thread: 1/4-28, Thread Length: 13/32"

7S39-3A8

Fastener Length: 27/32", Thread: 10-32, Thread Length: 23/64"

7S39-3A7

Fastener Length: 25/32", Thread: 10-32, Thread Length: 23/64"

7S39-3A4

Fastener Length: 19/32in., Thread: 10-32, Thread Length: 23/64in.

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