AN25-18

Aeronautical Standard Bolt

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Description:

Fastener Length: 1-11/64", Thread: 1/4-24, Thread Length: 3/8"

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AN25-18 Datasheet Features and Specification

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.339 inches minimum and 0.379 inches maximum
Fastener Length:
1.162 inches minimum and 1.182 inches maximum
Head Style:
Button
Head Diameter:
0.609 inches minimum and 0.641 inches maximum
Head Height:
0.140 inches minimum and 0.172 inches maximum
Groove Diameter:
0.245 inches minimum and 0.255 inches maximum
Shank Unthreaded Hole Diameter:
0.076 inches minimum first hole and 0.086 inches maximum first hole
Single Shear Strength:
5750 pounds per square inch
Internal Drive Style:
Slot
Thread Diameter:
0.312 inches
Thready Qty Per Inch (tpi):
24
Distance From Head Largest Bearing Surface To Shank Hole Center:
0.986 inches minimum first hole and 1.016 inches maximum first hole
Material:
Steel comp 8740 overall or steel comp 8630 overall or steel comp 8735 overall or steel comp 4140 overall or steel comp 4130 overall or steel comp 4037 overall
Material Specification:
Mil-s-6049 mil spec 1st material response overall or mil-s-6050 mil spec 2nd material response overall or mil-s-6098 mil spec 3rd material response overall or mil-s-5626 mil spec 4th material response overall or mil-s-6758 mil spec 5th material response overall or mil-s-8695 mil spec 6th material response overall
Surface Treatment:
Cadmium overall and chromate overall
Surface Treatment Specification:
Qq-p-416 ty 2 cl 3 fed spec all treatment responses overall
Thread Series Designator:
Unf
Departure From Cited Document:
Thread t per mil-s-7742 except major dia is not to exceed max allow shank bolt dia
Quick Specs
Thread Size 1/4
Thread Qty 24
Material Steel
Length 1-11/64

Additional Information

SKU / Model: AN2518
NSN: 5306-00-144-3854
FSC: Bolts / 5306
Product Series: AN25
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)
Download PDF Version
AN25-18_Military-Fasteners-com.pdf
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AN25-48

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AN25-38

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