AN7-31

Aeronautical Standard Machine Bolt

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Description:

length: 3-7/32", grip: 2-9/16", thread: 7/16-20, cadmium plated steel drilled shank"

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AN7-31 Datasheet Features and Specification

Thread Class:
3a
Thread Length:
0.657 inches minimum
Fastener Length:
3.219 inches nominal
Head Style:
Hexagon
Head Height:
0.234 inches minimum and 0.266 inches maximum
Width Between Flats:
0.615 inches minimum and 0.627 inches maximum
Shank Unthreaded Hole Diameter:
0.106 inches nominal first hole
Thread Diameter:
0.438 inches
Grip Length:
2.562 inches nominal
Features Provided:
Finished head
Thready Qty Per Inch (tpi):
20
Min. Tensile Strength (psi):
125000 pounds per square inch
Hardness Rating:
26.0 rockwell c minimum overall and 32.0 rockwell c maximum overall
Distance From Head Largest Bearing Surface To Shank Hole Center:
3.046 inches nominal first hole
Material:
Steel comp 4037 overall or steel comp 4130 overall or steel comp 8630 overall or steel comp 8735 overall or steel comp 8740 overall or steel comp 4140 overall
Material Specification:
Mil-b-6812 mil spec all material responses overall
Thread Series Designator:
Unf
Quick Specs
Thread Size 7/16
Thread Qty 20
Material Steel
Length 3-7/32

Additional Information

SKU / Model: AN731
NSN: 5306-00-156-2646
FSC: Bolts / 5306
Product Series: AN7
Pack Weight (Approx.) 0.000 lb
Minimum Qty (MOQ): 4
National Motor Freight: 093486, Bolts,nuts Or Screws, Noi (sub 3)
Download PDF Version
AN7-31_Military-Fasteners-com.pdf
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AN7C16

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AN7-7A

length: 31/32", grip: 5/16", thread: 7/16-20, cadmium plated steel - undrilled shank

AN7-6A

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AN7-62A

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