MS9557-38
Military Standard Machine Bolt
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Description:
* Manufacturer certifications are shipped with your order
FREE of charge
Length: 3-1/4", Thread: 1/4-28, Thread Length: 13/16", MS9557 series bolt
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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) |
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Download PDF Version MS9557-38_Military-Fasteners-com.pdf |
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Product code MS9557-38
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