MS9557-06

Military Standard Machine Bolt

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Description:

Fastener Length: 1/2", Thread: 1/4-28, Thread Length: 13/32", MS9557 series bolt

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MS9557-06
MS9557-06
MS9557-06
Add to Cart Up to qty 280 ships same day if ordered before 4pm EST
MS9557-06 Price:
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$2.71 Each
Quantity:
Pre-packaged bag qty: 20 ea
* Sold in increments of 20
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MS9557-06 Datasheet Features and Specification

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.401 inches minimum and 0.421 inches maximum
Fastener Length:
0.500 inches nominal
Head Style:
Double hexagon w/hole
Head Height:
0.300 inches nominal
Width Between Flats:
0.305 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
Grip Length:
0.079 inches minimum and 0.099 inches maximum
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 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 1/2

Additional Information

SKU / Model: MS955706
NSN: 5306-00-121-2671
FSC: Bolts / 5306
Product Series: MS9557
Pack Weight (Approx.) 0.288 lb
Minimum Qty (MOQ): 20
Schedule B: 7318.15.2095
ECCN: EAR99
National Motor Freight: 093486, Bolts,nuts Or Screws, Noi (sub 3)
Download PDF Version
MS9557-06_Military-Fasteners-com.pdf
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Product Image Gallery

Product code MS9557-06
MS9557-06
MS9557-06
MS9557-06

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Customer Reviews

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Another good experience with Military Fasteners, and our Sales Rep, Dan Hunter. We needed hardware for an older aircraft model, and Dan's expertise was exceptional. He quickly identified fasteners, even for parts with unclear descriptions, and provided invaluable technical assistance. The supporting data was spot-on, verified by our technicians. Despite finding slightly lower prices elsewhere, the unmatched service and expertise from Military Fasteners, particularly Dan, make them our preferred choice. Our order was delivered ahead of schedule. Highly recommend MilFast for top-notch service and technical support!

5.0

I have been doing business with Military Fasteners for a number of years. Every Time I have needed a question answered in finding something for my projects Military Fasteners has always been there. The people I talk to are helpful and knowledgeable concerning all the vintage planes I have called looking for a special item needed. Thank you for being YOU!

5.0

When I need parts or products for my aircraft, I think only of Military Fasteners! Dependably in stock, same day shipping and quality, caring employees are all literally guaranteed. I wish every vendor I deal with was anywhere close to being as consistently customer focused!

5.0

Have had nothing but great experiences. If I ever need anything I just email Amelia Fato and she gets me fixed up! Super fast and helpful customer service. 10 out of 10.

5.0