NAS1624-18

Screw

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Description:

Fastener Length: 1-29/64", Thread: 1/4-28, Thread Length: 21/64"

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NAS1624-18 Datasheet Features and Specification

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.291 inches minimum and 0.341 inches maximum
Fastener Length:
1.426 inches minimum and 1.456 inches maximum
Head Style:
Flat countersunk
Head Diameter:
0.496 inches minimum and 0.510 inches maximum
Internal Drive Style:
High-torque
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 4140 or steel comp e4340 or steel comp 6150 or steel comp 8735 or steel comp 8740
Screw Material Specification:
Mil-s-5626 mil spec 1st material response or mil-s-5000 mil spec 2nd material response or mil-s-8503 mil spec 3rd material response or mil-s-6098 mil spec 4th material response or mil-s-6049 mil spec 5th material response
Screw Surface Treatment:
Cadmium and chromate
Screw Surface Treatment Specification:
Qq-p-416,type 2,class 3 fed spec all treatment responses
Thread Series Designator:
Unf
Quick Specs
Thread Size 1/4
Thread Qty 28
Material Steel
Length 1-29/64

Additional Information

SKU / Model: NAS162418
NSN: 5305-00-882-0820
FSC: Screws / 5305
Product Series: NAS1624
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
NAS1624-18_Military-Fasteners-com.pdf
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More NAS1624 machine screws

NAS1624-9

Fastener Length: 57/64", Thread: 1/4-28, Thread Length: 21/64"

NAS1624-7

Fastener Length: 49/64", Thread: 1/4-28, Thread Length: 21/64"

NAS1624-6

Fastener Length: 45/64", Thread: 1/4-28, Thread Length: 21/64"

NAS1624-23

Fastener Length: 1-49/64", Thread: 1/4-28, Thread Length: 21/64"

NAS1624-12

$1.14 EA, Fastener Length: 1-5/64in., Thread: 1/4-28, Thread Length: 21/64in.

NAS1624-10

$4.20 EA, Fastener Length: 61/64in., Thread: 1/4-28, Thread Length: 21/64in.

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