MS16998-55

Military Standard Screw

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Description:

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

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MS16998-55 Datasheet Features and Specification

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.469 inches minimum and 0.500 inches maximum
Fastener Length:
0.469 inches minimum and 0.500 inches maximum
Head Style:
Flat chamfer
Head Diameter:
0.457 inches minimum and 0.468 inches maximum
Head Height:
0.306 inches minimum and 0.312 inches maximum
Internal Drive Style:
Hexagon
Thread Diameter:
0.312 inches
Width Across Flats:
0.250 inches minimum and 0.253 inches maximum
Thready Qty Per Inch (tpi):
24
Min. Tensile Strength (psi):
160000 pounds per square inch
Hardness Rating:
36.0 rockwell c minimum overall and 45.0 rockwell c maximum overall
Minimum Yield Strength:
130000 pounds per square inch
Material:
Steel overall
Surface Treatment:
Cadmium overall and chromate overall
Surface Treatment Specification:
Qq-p-416 ty 2 cl 3 fed spec single treatment response overall
Thread Series Designator:
Unf
Quick Specs
Thread Size 1/4
Thread Qty 24
Material Steel
Length 1/2

Additional Information

SKU / Model: MS1699855
NSN: 5305-00-983-6667
FSC: Screws / 5305
Product Series: MS16998
Pack Weight (Approx.) 0.000 lb
Minimum Qty (MOQ): 15 EA
Schedule B: 7318.15.2010
ECCN: 9A991
National Motor Freight: 093486, Bolts,nuts Or Screws, Noi (sub 3)
Download PDF Version
MS16998-55_Military-Fasteners-com.pdf
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MS16998-98

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MS16998-97

Fastener Length: 1-1/2in., Thread: 1/2-20, Head Width: 3/8in., Thread Length: 1-25/64in.

MS16998-81

Fastener Length: 2-63/64in., Thread: 3/8-24, Head Width: 5/16in., Thread Length: 1-1/2in.

MS16998-79

$13.14 EA, Fastener Length: 2-1/4in., Thread: 3/8-24, Head Width: 5/16in., Thread Length: 1-1/4in. screw

MS16998-76L

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

MS16998-76

$5.94 EA, Fastener Length: 1-1/2in., Thread: 3/8-24, Head Width: 5/16in., Thread Length: 1-29/64in.

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I have been a customer since Fullerton Air Parts (Flo Irwin). That should speak volumes of the service I have received from Military Fasteners. In the early days, I had a variety of planes and was based out of Orange County Airport. At the time, the airport was surrounded by bean fields. I, and some of my friends, would frequently fly into Fullerton airport for lunch, the pick up whatever supplies we needed from Flo. She was a great lady, and I am glad that she passed on such a wonderful legacy. I am certain that she would be very proud of what she started, and proud of you all for building on her meager beginnings.

4.0

Everything arrived exactly as ordered. Online ordering was very easy. Thanks.

5.0

Staff very supportive and informative. Order was shipped extremely promptly and correctly. GREAT customer service!

5.0

I just ordered four very tiny items for a couple of bucks and you treated me like I ordered much much more. The order got to me in just a few days and all I can say is your company is at the top of my list. Thank you very much. Stan

4.0