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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More MS16998 machine screws

MS16998-80

Fastener Length: 2-1/2in., Thread: 3/8-24, Head Width: 5/16in., Thread Length: 1-1/2in., 5305-00-983-7453

MS16998-78

Fastener Length: 1-63/64", Thread: 3/8-24, Head Width: 1/4", Thread Length: 1-1/2"

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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Trisha did a great job, received the quote fast and the material 2 days later, thanks!

5.0

I have ordered from Military Fasteners for years and have never had a complaint! And do not expect to have a complaint in the future.

4.0

Excellent service! Trisha Hawkins is so polite, easy to work with and an awesome customer service! Highly recommended!

5.0

Military Fasteners is an exceptional company in terms of how they run their business. Very prompt and responsive to questions, concerns, quotes, and all other forms of inquiry. Brittany Cornish supports many of the business transactions we perform with Military Fasteners and has made working with them an absolute pleasure. I would highly recommend them to anyone seeking mil-spec hardware.

5.0