MS9557-38

Military Standard Machine Bolt

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Description:

Length: 3-1/4", Thread: 1/4-28, Thread Length: 13/16", MS9557 series bolt

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MS9557-38
MS9557-38
MS9557-38
Add to Cart Up to qty 30 ships same day if ordered before 4pm EST
MS9557-38 Price:
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$15.77 Each
Quantity:
Pre-packaged bag qty: 5 ea
* Sold in increments of 5
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MS9557-38 Datasheet Features and Specification

Extended Washer Diameter:
0.438 inches
Extended Washer Thickness:
0.060 inches
Fastener Length:
Between 3.240 inches and 3.260 inches
Features Provided:
Finished head
Grip Length:
Between 2.440 inches and 2.500 inches
Hardness Rating:
24.0 rockwell c and 35.0 rockwell c
Head Height:
0.300 inches
Head Style:
Double hexagon w/hole
Material:
Iron alloy 660
Material Specification:
Ams 5731 assn standard single material response
Min. Tensile Strength (psi):
130000 pounds per square inch
Minimum Yield Strength:
85000 pounds per square inch
Thread Diameter:
0.250 inches
Surface Finish:
32.0 microinches bearing surface of head
Surface Finish:
32.0 microinches grip
Surface Finish:
32.0 microinches threads
Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
Between 0.740 inches and 0.820 inches
Thread Qty Per Inch (tpi):
28
Thread Series Designator:
Unjf (fine thread with external controlled root radius)
Width Between Flats:
0.312 inches
Quick Specs
Thread Size 1/4
Thread Qty 28
Thread Series UNJF
Thread Class 3A
Material Iron

Additional Information

SKU / Model: MS955738
NSN: 5306-01-010-2293
FSC: Bolts / 5306
Product Series: MS9557
Pack Weight (Approx.) 0.443 lb
Minimum Qty (MOQ): 5
Schedule B: 7318.15.8085
ECCN: EAR99
National Motor Freight: 093486, Bolts,nuts Or Screws, Noi (sub 3)
Download PDF Version
MS9557-38_Military-Fasteners-com.pdf
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Product code MS9557-38
MS9557-38
MS9557-38
MS9557-38

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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

Great customer service. Did a quick research for us to find a replacement. Will buy again.

5.0

Never had any problem since I began ordering from Military Fasteners for some time now! Always got what I ordered :)

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Highly recommend ... amazing customer service ... always going above and beyond my needs. Kindest Regard, Julie with Tactical Air Support, Inc.

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