MS9557-21

Military Standard Machine Bolt

email this to someone  
Description:

Fastener Length: 1-7/16", Thread: 1/4-28, Thread Length: 13/16",

* Manufacturer certifications are shipped with your order FREE of charge
MS9557-21
MS9557-21
MS9557-21
MS9557-21
Add to Cart Up to qty 30 ships same day if ordered before 4pm EST
MS9557-21 Price:
buy now
$19.33 Each
Quantity:
Pre-packaged bag qty: 5 ea
* Sold in increments of 5
Add item to quote  

MS9557-21 Datasheet Features and Specification

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.740 inches minimum and 0.820 inches maximum
Fastener Length:
1.428 inches minimum and 1.448 inches maximum
Head Style:
Double hexagon w/hole
Head Height:
0.290 inches minimum and 0.310 inches maximum
Width Between Flats:
0.313 inches nominal
Extended Washer Diameter:
0.428 inches minimum and 0.448 inches maximum
Extended Washer Thickness:
0.060 inches minimum
Thread Diameter:
0.250 inches
Grip Length:
0.628 inches minimum and 0.688 inches maximum
Features Provided:
Finished head
Thready Qty Per Inch (tpi):
28
Min. Tensile Strength (psi):
130000 pounds per square inch
Hardness Rating:
24.0 rockwell c minimum overall and 35.0 rockwell c maximum overall
Minimum Yield Strength:
85000 pounds per square inch
Surface Finish:
32.0 microinches bearing surface of head
Surface Finish:
32.0 microinches grip
Surface Finish:
32.0 microinches threads
Material:
Iron alloy 660 overall
Material Specification:
Ams 5731 assn std single material response overall
Thread Series Designator:
Unjf
Quick Specs
Thread Size 1/4
Thread Qty 28
Material Iron
Length 1-7/16

Additional Information

SKU / Model: MS955721
NSN: 5306-01-288-9338
FSC: Bolts / 5306
Product Series: MS9557
Pack Weight (Approx.) 0.131 lb
Minimum Qty (MOQ): 5
ECCN: EAR99
National Motor Freight: 093486, Bolts,nuts Or Screws, Noi (sub 3)
Download PDF Version
MS9557-21_Military-Fasteners-com.pdf
Worldwide Shipping In stock and ready to ship!

* report an issue on this page

More MS9557 machine bolts

MS9557-61

Bolt

MS9557-52

Bolt

MS9557-50

Bolt

MS9557-48

Bolt

MS9557-46

Fastener Length: 4-1/4", Thread: 1/4-28, Thread Length: 51/64"

MS9557-45

MS9557-45

Product Image Gallery

Product code MS9557-21
MS9557-21
MS9557-21
MS9557-21
MS9557-21

Have a question

If you require a quote on this or any product please visit our quote request page »

Browse our frequently asked questions page.

You may contact us by phone at +1 (904) 543-6395 or email us using our contact form.

Our hours of operation are 8:00am - 6:00pm EST

Customer Reviews

Google View our Google profile

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

4.0

Trisha was very helpful and knowledgeable. She was very friendly and outgoing.

5.0

Happy with my transaction

4.0

I could find those 2 great different products for my Garmin at the same place. Thank you very much, very helpful, very easy to order and fast shipping.

5.0