MS21280-11

Military Standard Bolt

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Description:

Fastener Length: 13/16", Thread: 1/4-28, Thread Length: 3/4"

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MS21280-11 Datasheet Features and Specification

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.741 inches minimum
Fastener Length:
0.812 inches nominal
Head Style:
Double hexagon w/hole
Head Height:
0.330 inches nominal
Width Between Flats:
0.304 inches minimum and 0.313 inches maximum
Extended Washer Diameter:
0.438 inches nominal
Extended Washer Thickness:
0.060 inches minimum and 0.070 inches maximum
Thread Diameter:
0.250 inches
Features Provided:
Finished head
Thready Qty Per Inch (tpi):
28
Min. Tensile Strength (psi):
130000 pounds per square inch
Hardness Rating:
248.0 brinell standard minimum overall and 341.0 brinell standard maximum overall
Minimum Yield Strength:
85000 pounds per square inch
Surface Finish:
32.0 microinches threads
Surface Finish:
63.0 microinches bearing surface of head
Surface Finish:
63.0 microinches grip
Material:
Iron alloy 660 overall
Material Specification:
Ams 5732 assn std single material response overall
Thread Series Designator:
Unjf
Quick Specs
Thread Size 1/4
Thread Qty 28
Material Iron
Length 3/4

Additional Information

SKU / Model: MS2128011
NSN: 5306-00-121-7856
FSC: Bolts / 5306
Product Series: MS21280
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
MS21280-11_Military-Fasteners-com.pdf
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More MS21280 machine bolts

MS21280-32

Fastener Length: 2-1/2in., Thread: 1/4-28, Thread Length: 3/4in.

MS21280-28

Fastener Length: 2-1/64", Thread: 1/4-28, Thread Length: 3/4"

MS21280-14

$3.00 EA, Fastener Length: 1in., Thread: 1/4-28, Thread Length: 3/4in.

MS21280-12

Fastener Length: 7/8", Thread: 1/4-28, Thread Length: 3/4"

MS21280-10

$6.60 EA, Fastener Length: 3/4in., Thread: 1/4-28, Thread Length: 11/16in.

MS21280-08

Fastener Length: 5/8", Thread: 1/4-28, Thread Length: 35/64"

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Trisha Hawkins has been very helpful and easy to deal with. Any rush orders or just orders in general, she makes sure I get it within the time requested.

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Easy to navigate website, great prices and speedy delivery. I was very happy with the service.

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Products are military grade MIL-SPEC as advertised. I was able to locate #10 locking counter-sunk nutplates when ALL other locations, including Aircraft-Spruce, could not supply.

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