AN178-11

Aeronautical Standard Bolt

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Description:

Fastener Length: 1-1/4", Thread: 1/2-20, Thread Length: 53/64"

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AN178-11 Datasheet Features and Specification

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.649 inches minimum and 0.828 inches maximum
Fastener Length:
1.203 inches minimum and 1.250 inches maximum
Head Style:
Hexagon
Head Height:
0.265 inches minimum and 0.297 inches maximum
Width Between Flats:
0.740 inches minimum and 0.752 inches maximum
Grip Diameter:
0.4986 inches minimum and 0.4991 inches maximum
Shank Unthreaded Hole Diameter:
0.106 inches nominal first hole
Thread Diameter:
0.500 inches
Grip Length:
0.422 inches nominal
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:
3.187 inches nominal first hole
Surface Finish:
63.0 microinches bearing surface of head
Surface Finish:
63.0 microinches grip
Material:
Steel comp 4140 overall
Material Specification:
Mil-s-5626 mil spec single 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
Quick Specs
Thread Size 1/2
Thread Qty 20
Material Steel
Length 1-1/4

Additional Information

SKU / Model: AN17811
NSN: 5306-00-180-1800
FSC: Bolts / 5306
Product Series: AN178
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
AN178-11_Military-Fasteners-com.pdf
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More AN178 close tolerance bolts

AN178H27

Fastener Length: 2-63/64in., Hole Diameter: 1/16in., Thread: 1/2-20, Thread Length: 53/64in.

AN178H24

Fastener Length: 2-19/32", Hole Diameter: 1/16", Thread: 1/2-20, Thread Length: 25/32"

AN178-55

Fastener Length: 5-3/4", Thread: 1/2-20, Thread Length: 53/64"

AN178-40

Fastener Length: 4-3/32in., Thread: 1/2-20, Thread Length: 25/32in.

AN178-26

$49.14 Each, Length: 2-27/32in., grip: 2-1/16in., thread: 1/2-20, cadmium plated steel drilled shank

AN178-22A

$16.20 Each, Length: 2-11/32in., grip: 1-9/16in., thread: 1/2-20, cadmium plated steel undrilled shank

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