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

Ashili Hansen was instrumental in sorting out a log-in issue I had. Ashili also assisted me in identifying several unique aircraft hardware items. All were in stock, shipped immediately, and at a competitive price!

5.0

Order was correct, complete and shipped quicker than I had expected. Well done

5.0

Phone was answered on the second ring. The order was taken. All requested items were in stock. Got my order delivered to my door 2 days later.

5.0