MS16998-40L

Military Standard Screw

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Description:

Fastener Length: 3/8", Thread: 1/4-28, Head Width: 3/16", Thread Length: 3/8"

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MS16998-40L Datasheet Features and Specification

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.273 inches minimum and 0.375 inches maximum
Fastener Length:
0.344 inches minimum and 0.375 inches maximum
Head Style:
Flat chamfer
Head Diameter:
0.365 inches minimum and 0.375 inches maximum
Head Height:
0.244 inches minimum and 0.250 inches maximum
Locking Feature:
Strip threads or patch threads
Internal Drive Style:
Hexagon
Thread Diameter:
0.250 inches
Width Across Flats:
0.1875 inches minimum and 0.1900 inches maximum
Thready Qty Per Inch (tpi):
28
Min. Tensile Strength (psi):
160000 pounds per square inch
Hardness Rating:
38.0 rockwell c minimum overall and 45.0 rockwell c maximum overall
Minimum Yield Strength:
150000 pounds per square inch
Material:
Steel overall
Surface Treatment:
Chromate overall and cadmium overall
Surface Treatment Specification:
Qq-p-416,ty 2,cl 3 fed spec single treatment response overall
Thread Series Designator:
Unf
Nondefinitive Specification/std Data:
6 type
Quick Specs
Thread Size 1/4
Thread Qty 28
Material Steel
Length 3/8

Additional Information

SKU / Model: MS1699840L
NSN: 5305-01-189-3757
FSC: Screws / 5305
Product Series: MS16998
Pack Weight (Approx.) 0.000 lb
Minimum Qty (MOQ): 30 EA
Schedule B: 7318.15.6080
ECCN: EAR99
National Motor Freight: 093486, Bolts,nuts Or Screws, Noi (sub 3)
Download PDF Version
MS16998-40L_Military-Fasteners-com.pdf
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MS16998-78

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MS16998-73

$31.80 EA, Fastener Length: 7/8in., Thread: 3/8-24, Head Width: 1/4in., Thread Length: 7/8in.

MS16998-70

Fastener Length: 1/2", Thread: 3/8-24, Head Width: 5/16", Thread Length: 13/32"

MS16998-65

Fastener Length: 2-1/2", Thread: 1/4-24, Head Width: 1/4", Thread Length: 1-3/8"

MS16998-61L

$1.20 EA, Fastener Length: 1-1/2in., Thread: 1/4-24, Head Width: 1/4in., Thread Length: 1-1/2in.

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