MS16997-9L

Military Standard Screw

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Description:

Fastener Length: 1/4", Thread: 4-40, Head Width: 3/32", Thread Length: 1/4"

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MS16997-9L Datasheet Features and Specification

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.169 inches minimum and 0.250 inches maximum
Fastener Length:
0.219 inches minimum and 0.250 inches maximum
Head Style:
Flat chamfer
Head Diameter:
0.176 inches minimum and 0.183 inches maximum
Head Height:
0.108 inches minimum and 0.112 inches maximum
Locking Feature:
Patch threads
Internal Drive Style:
Hexagon
Thread Diameter:
0.112 inches
Width Across Flats:
0.094 inches minimum and 0.095 inches maximum
Thready Qty Per Inch (tpi):
40
Min. Tensile Strength (psi):
180000 pounds per square inch
Hardness Rating:
38.0 rockwell c minimum overall and 45.0 rockwell c maximum overall
Minimum Yield Strength:
155000 pounds per square inch
Material:
Steel overall
Surface Treatment:
Cadmium overall and chromate overall
Surface Treatment Specification:
Qq-p-416,type 2,class 3 fed spec single treatment response overall
Thread Series Designator:
Unc
Nondefinitive Specification/std Data:
6 type
Quick Specs
Thread Size 4
Thread Qty 40
Material Steel
Length 1/4

Additional Information

SKU / Model: MS169979L
NSN: 5305-01-196-3859
FSC: Screws / 5305
Product Series: MS16997
Pack Weight (Approx.) 0.000 lb
Minimum Qty (MOQ): 25 EA
Schedule B: 7318.15.2091
ECCN: 9A991
National Motor Freight: 093486, Bolts,nuts Or Screws, Noi (sub 3)
Download PDF Version
MS16997-9L_Military-Fasteners-com.pdf
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MS16997-9

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In dealing with Military Fasteners for 3 plus years, I can honestly say Ive never had a bad experience with the company. Please keep up the great work and youll keep me coming back for as long as I am flying.

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Youre team did an excellent job as usual. The sheet metal and grommets arrived in excellent condition and were very well priced which I appreciate. Thanks again. Doug

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Any time I need anything it is here when I need it without question. I have tried other suppliers and ship dates are not honored sometimes it can take two weeks for item in their stock!! Thanks for being consistent and prompt.

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