MS16998-101

Military Standard Socket Head Cap Screw

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Description:

Fastener Length: 2-1/2", Thread: 1/2-20, Head Width: 3/8", Thread Length: 1-1/2

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MS16998-101 Datasheet Features and Specification

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
1.500 inches minimum
Fastener Length:
2.440 inches minimum and 2.500 inches maximum
Head Style:
Flat chamfer
Head Diameter:
0.735 inches minimum and 0.750 inches maximum
Head Height:
0.492 inches minimum and 0.500 inches maximum
Internal Drive Style:
Hexagon
Thread Diameter:
0.500 inches
Width Across Flats:
0.375 inches minimum and 0.379 inches maximum
Thready Qty Per Inch (tpi):
20
Min. Tensile Strength (psi):
170000 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:
Cadmium overall and chromate overall
Surface Treatment Specification:
Qq-p-416,ty 2 cl 2 fed spec single treatment response overall
Thread Series Designator:
Unrf
Specification Data:
80205-nas1351 professional/industrial association standard
Quick Specs
Thread Size 1/2
Thread Qty 20
Material Steel
Length 2-1/2

Additional Information

Alternate Part Numbers

  • NAS1351-8-40P
SKU / Model: MS16998101
NSN: 5305-01-303-4702
FSC: Screws / 5305
Product Series: MS16998
Pack Weight (Approx.) 0.000 lb
Minimum Qty (MOQ): 5
Schedule B: 7318.15.2010
ECCN: EAR99
National Motor Freight: 093486, Bolts,nuts Or Screws, Noi (sub 3)
Download PDF Version
MS16998-101_Military-Fasteners-com.pdf
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More MS16998 socket head cap screws

MS16998-98

Fastener Length: 1-3/4in., Thread: 1/2-20, Head Width: 3/8in., Thread Length: 1-41/64in., 5305-00-983-7457

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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Order was shipped extremely fast. I dont know how you get these orders shipped as fast as you do. Everything was perfect. Thanks

5.0

I placed this order late at 4:15 over the phone, 15 minutes past the cut off time.(Which rarely happens) It was critical for us to get the sparkplugs as a customer had called me and scheduled to bring his plane in the next day to have all his plugs replaced. My sales agent said she would personally go and pull the product so it would ship that day, and she did what she said. She saved me the embarrassment of telling my customer I forgot to order his parts on time and making him reschedule a maintenance visit. I am thankful you have people like her who really care about the customer and want to put in the extra effort for customer service. In my aircraft maintenance business I purchase everything I can first from Military Fasteners before I go looking for other venders. I use Military Fasteners because of the great customer service, free shipping (which is one day ground), large selection on hardware and materials, and competitive prices. I am a loyal customer and I order 2-3+ times a week. Thank you for the great service that your people provide at Military Fasteners.

5.0

Recently my avionics technician and I were installing a component in my aircraft and there were some critical fasteners missing from the manufactures package. This stopped the entire process. I called Military Fasteners after finding the parts on line, and Trisha answered the phone. I told her the situation and that I needed them ASAP. I found the parts gave her the part number and she confirmed they were in stock. This was about 430 in the afternoon just before closing. Trisha was kind and professional got the parts out the door that evening even though it was after the shipping cut off. Saved the day. I can tell you this entire company is represented by Trisha, anything they can do to help you out of a jamb they will absolutely go the extra mile and Trisha is the go to person. I am sure there are others there with her same attitude and professionalism. This is a great resource for all your fasteners needs.

5.0

Paige is the best :)

5.0