AN4C31A

Aeronautical Standard Machine Bolt

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Description:

Fastener Length: 3-3/16", Thread: 1/4-28, Thread Length: 1/2

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AN4C31A Datasheet Features and Specification

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.438 inches minimum and 0.515 inches maximum
Fastener Length:
3.141 inches minimum and 3.188 inches maximum
Head Style:
Hexagon
Head Height:
0.140 inches minimum and 0.172 inches maximum
Width Between Flats:
0.428 inches minimum and 0.440 inches maximum
Thread Diameter:
0.250 inches
Grip Length:
2.672 inches minimum and 2.703 inches maximum
Features Provided:
Finished head
Thready Qty Per Inch (tpi):
28
Min. Tensile Strength (psi):
125000 pounds per square inch
Hardness Rating:
26.0 rockwell c minimum overall and 32.0 rockwell c maximum overall
Material:
Steel comp 431 overall
Material Specification:
Mil-s-18732 mil spec single material response overall
Surface Treatment:
Passivate overall
Thread Series Designator:
Unf
Quick Specs
Thread Size 1/4
Thread Qty 28
Material Steel
Length 3-3/16

Additional Information

SKU / Model: AN4C31A
NSN: 5306-00-584-4888
FSC: Bolts / 5306
Product Series: AN4C
Pack Weight (Approx.) 0.000 lb
Minimum Qty (MOQ): 1
Schedule B: 7318.15.8085
ECCN: EAR99
National Motor Freight: 093486, Bolts,nuts Or Screws, Noi (sub 3)
Download PDF Version
AN4C31A_Military-Fasteners-com.pdf
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Amelia does a great job for Highpoint.

5.0

Discovered on Wednesday evening I needed a new tire / tube. I had it in my hands Friday in time for a weekend install. Great service!!

5.0

Props to my saleslady (whose name I have sadly forgotten) for her can do attitude. Fast and efficient yet friendly and thorough. The items arrived nicely padded with brown paper. Im so happy youve stopped using those hard-to-dispose-of styrofoam peanuts. Fast to ship reasonable prices. Just excellent all around!

4.0

Military fasteners has what we need in stock, ships quickly with all the proper paperwork. Much appreciated

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