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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The products sent allowed the repair to be completed in a timely manner. Thank you for Military Fasteners being there and having parts available to allow our vintage aircraft to continue flight.

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I've done business with them a few times and they are great to work with

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You guys shipped right away and it was delivered on time. Thanks for the prompt service.

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Great service and lead time. Ships to Canada as well.

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