MS9558-21

Military Standard Machine Bolt

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Description:

Fastener Length: 1-1/2", Thread: 5/16-24, Thread Length: 7/8", MS9558 series bolt

* Manufacturer certifications are shipped with your order FREE of charge
MS9558-21
MS9558-21
MS9558-21
MS9558-21
MS9558-21
MS9558-21
Add to Cart Up to qty 60 ships same day if ordered before 4pm EST
MS9558-21 Price:
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$28.97 Each
Quantity:
Pre-packaged bag qty: 1 ea
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MS9558-21 Datasheet Features and Specification

Width Between Flats:
0.375 inches
Thread Series Designator:
Unjf (fine thread with external controlled root radius)
Thread Qty Per Inch (tpi):
24
Thread Length:
7/8 inch
Thread Direction:
Right-hand
Thread Diameter:
0.312 inches
Thread Class:
3a
Surface Finish:
32.0 microinches grip
Surface Finish:
32.0 microinches surface of head
Surface Finish:
32.0 microinches threads
Minimum Yield Strength:
85000 pounds per square inch
Min. Tensile Strength (psi):
130000 pounds per square inch
Material Specification:
Ams 5731 assn standard single material response
Material:
Iron alloy 660
Head Style:
Double hexagon with hole
Head Height:
0.348 inches
Grip Length:
Between 0.628 inches and 0.688 inches
Hardness Rating:
24.0 rockwell c and 35.0 rockwell c
Fastener Length:
1-1/2 inch
Features Provided:
Finished head
Extended Washer Thickness:
0.07 inches
Extended Washer Diameter:
1/2 inch
Quick Specs
Thread Size 5/16
Thread Qty 24
Thread Length 7/8
Thread Series UNJF
Thread Class 3A
Material Iron
Length 1-1/2

Additional Information

SKU / Model: MS955821
NSN: 5306-01-078-7240
FSC: Bolts / 5306
Product Series: MS9558
Pack Weight (Approx.) 0.050 lb
Minimum Qty (MOQ): 1
Schedule B: 7318.15.8085
ECCN: EAR99
National Motor Freight: 093486, Bolts,nuts Or Screws, Noi (sub 3)
Download PDF Version
MS9558-21_Military-Fasteners-com.pdf
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thread: 5/16-24, 12 point, self locking, extended washer, silver plated, corrosion resistant steel, NAS1805 series nut

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Fastener Length: 1/2", Hole Diameter: 3/64", Thread: 8-32, Head Width: 9/64", Thread Length: 29/64", MS24674 series screw

More MS9558 machine bolts

MS9558-34

Fastener Length: 2-63/64", Thread: 5/16-24, Thread Length: 0-63/64"

MS9558-32

$11.94 EA, Fastener Length: 2-3/4in., Thread: 1/4-24, Thread Length: 59/64in.

MS9558-27

Fastener Length: 2-1/8in., Thread: 1/4-24, Thread Length: 59/64in.

MS9558-26

MS9558-26 Machine Bolt

MS9558-24

Fastener Length: 1-3/4", Thread: 1/4-24, Thread Length: 59/64"

MS9558-20

$14.34 EA, Fastener Length: 1-1/2in., Thread: 1/4-24, Thread Length: 59/64in.

Product Image Gallery

Product code MS9558-21
MS9558-21
MS9558-21
MS9558-21
MS9558-21
MS9558-21
MS9558-21

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Customer Reviews

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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.

5.0

As always, orders are shipped promptly and received when expected. Rarely can you find products at lower cost than at Military Fasteners. The web site is easy to use. My favorite place to order from. When looking for aviation products, I always go to Military Fasteners first.

5.0

Milfas is a great company to work with. They have good prices and great customer service! Ashili and Lindsey are great to work with.

5.0

Kristen Belmont makes my good purchase experience, very kindly

5.0