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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MS16997-98

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MS16997-97

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MS16997-9

$1.14 Each, Length: 1/4in., thread: 4-40, socket head cap screw self-locking cadmium plated alloy steel

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I called the customer service line just before Air Venture at Oshkosh to find out if they would have the parts I needed at their booth. The service rep on the phone was very helpful and was able to check the inventory that was taken to Oshkosh.I was told that the parts would not be available but could be shipped from the warehouse without delay. I ordered a full set of intake seals for a Continental 085 on the spot and they arrived in a few days. I am very happy with the service provided, and will be ordering more parts soon! Thank you Larry

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I appreciate your service, especially being able to talk to people who know a lot about aircraft and the many accessories, parts, etc.

5.0

I have been a customer for years and have never had a problem with any orders. Please keep up the good work :)

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I placed an order with Lindsey at Military Fasteners late afternoon, 3:15 to be exact and she was nice enough to expedite my order and made sure to get it shipped that day. Great company with great people.

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