Aeronautical Standard Bolt

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Fastener Length: 2-5/8", Hole Diameter: 1/32", Thread: 1/4-28

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AN174-25 Features and Specification

Thread Class:
Thread Direction:
Fastener Length:
2.656 inches nominal
Head Style:
Head Height:
0.140 inches minimum and 0.172 inches maximum
Width Between Flats:
0.428 inches minimum and 0.440 inches maximum
Hole Diameter:
0.046 inches nominal
Grip Diameter:
0.2487 inches minimum and 0.2492 inches maximum
Shank Unthreaded Hole Diameter:
0.076 inches nominal first hole
Thread Diameter:
0.250 inches
Grip Length:
2.188 inches nominal
Hole Quantity:
Hole Type:
Thready Qty Per Inch (tpi):
Min. Tensile Strength (psi):
125000 pounds per square inch
Hardness Rating:
26.0 rockwell c minimum overall and 32.0 rockwell c maximum overall
Hole Configuration Style:
Hexagon flats
Distance From Head Largest Bearing Surface To Shank Hole Center:
2.500 inches nominal first hole
Surface Finish:
63.0 microinches bearing surface of head
Surface Finish:
63.0 microinches grip
Steel comp 8740 overall or steel comp 8630 overall or steel comp 8735 overall or steel comp 4037 overall or steel comp 4140 overall or steel comp 4130 overall
Surface Treatment:
Cadmium overall and chromate overall
Surface Treatment Specification:
Qq-p-416 ty 2 cl 3 fed spec single treatment response overall
Thread Series Designator:

Additional Information

SKU / Model: AN17425
NSN: 5306-00-151-0327
FSC: Bolts / 5306
Product Series: AN174
Pack Weight (Approx.) 0.000 lb
Minimum Qty (MOQ): 10 EA
Schedule B: 7318.15.8085
ECCN: 9A991
National Motor Freight: 093486, Bolts,nuts Or Screws, Noi (sub 3)
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