MS20004-21

Military Standard Internal Wrenching Bolt

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Description:

Fastener Length: 1-13/16", Thread: 1/4-28, Head Width: 3/16", Thread Length: 33/64", MS20004 series bolt

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MS20004-21 Datasheet Features and Specification

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.475 inches minimum and 0.525 inches maximum
Fastener Length:
1.797 inches minimum and 1.827 inches maximum
Head Style:
Undercut pan no. 2
Head Diameter:
0.428 inches minimum and 0.438 inches maximum
Head Height:
0.250 inches nominal
Internal Drive Style:
Hexagon
Thread Diameter:
0.250 inches
Width Across Flats:
0.188 inches minimum and 0.190 inches maximum
Thready Qty Per Inch (tpi):
28
Min. Tensile Strength (psi):
160000 pounds per square inch
Hardness Rating:
34.0 rockwell c minimum overall and 40.0 rockwell c maximum overall
Material:
Steel comp 4140 overall or steel comp e4340 overall or steel comp 6150 overall or steel comp 8735 overall or steel comp 8740 overall
Material Specification:
Mil-s-5626 mil spec 1st material response overall or mil-s-5000 mil spec 2nd material response overall or mil-s-8503 mil spec 3rd material response overall or mil-s-6098 mil spec 4th material response overall or mil-s-6049 mil spec 5th material response overall
Surface Treatment:
Cadmium overall and chromate overall
Surface Treatment Specification:
Qq-p-416,ty 2,cl 3 fed spec all treatment responses overall
Thread Series Designator:
Unf
Quick Specs
Thread Size 1/4
Thread Qty 28
Material Steel
Length 1-13/16

Additional Information

SKU / Model: MS2000421
NSN: 5306-00-420-6475
FSC: Bolts / 5306
Product Series: MS20004
Pack Weight (Approx.) 0.000 lb
Minimum Qty (MOQ): 5
National Motor Freight: 093486, Bolts,nuts Or Screws, Noi (sub 3)
Download PDF Version
MS20004-21_Military-Fasteners-com.pdf
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MS20004H9

$10.74 EA, bevel conical head drilled fastener length: 1-in., hole diameter: 1/32in., thread: 1/4-28, head width: 3/16in., thread length: 15/32in.

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MS20004H70

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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.

4.0

Props to my saleslady (whose name I have sadly forgotten) for her can do attitude. Fast and efficient yet friendly and thorough. The items arrived nicely padded with brown paper. Im so happy youve stopped using those hard-to-dispose-of styrofoam peanuts. Fast to ship reasonable prices. Just excellent all around!

4.0

Military Fasteners always seems to get the order correct and delivered when expected. I this day and age, this is high praise.

5.0

Order arrived promptly and well packed. Was exactly as described and worked flawlessly. Happy Happy!

4.0