MS20038-4

Military Standard Machine Bolt

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Description:

Fastener Length: 1-21/64", Thread: 1/2-20, Thread Length: 53/64"

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MS20038-4 Datasheet Features and Specification

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.828 inches minimum
Fastener Length:
1.328 inches nominal
Head Style:
Hexagon
Head Height:
0.265 inches minimum and 0.297 inches maximum
Width Between Flats:
0.740 inches minimum and 0.752 inches maximum
Thread Diameter:
0.500 inches
Grip Length:
0.500 inches nominal
Features Provided:
Finished head
Thready Qty Per Inch (tpi):
20
Min. Tensile Strength (psi):
110000 pounds per square inch
Minimum Yield Strength:
90000 pounds per square inch
Material:
Steel corrosion resisting overall
Material Specification:
Mil-b-7874 mil spec single material response overall
Surface Treatment:
Passivate overall
Special Test Features:
Rapture strength an 1200 deg f shall not be less than 47000 psi in 100 hrs
Thread Series Designator:
Unf
Quick Specs
Thread Size 1/2
Thread Qty 20
Material Stainless Steel
Length 1-5/16

Additional Information

SKU / Model: MS200384
NSN: 5306-00-842-1237
FSC: Bolts / 5306
Product Series: MS20038
Pack Weight (Approx.) 0.000 lb
Minimum Qty (MOQ): 5 EA
Schedule B: 7318.15.8085
ECCN: EAR99
National Motor Freight: 093486, Bolts,nuts Or Screws, Noi (sub 3)
Download PDF Version
MS20038-4_Military-Fasteners-com.pdf
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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.

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