AN148657

Aeronautical Standard Screw

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Description:

Fastener Length: 9/16", Hole Diameter: 1/16", Thread: 1/4-28, Head Width: 7/32", Thread Length: 9/16"

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AN148657 Datasheet Features and Specification

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.501 inches minimum and 0.572 inches maximum
Fastener Length:
0.552 inches minimum and 0.572 inches maximum
Head Style:
Flat chamfer
Head Diameter:
0.428 inches minimum and 0.448 inches maximum
Head Height:
0.250 inches minimum and 0.270 inches maximum
Hole Diameter:
0.070 inches nominal
Internal Drive Style:
Hexagon
Thread Diameter:
0.250 inches
Width Across Flats:
0.219 inches minimum and 0.221 inches maximum
Hole Quantity:
6
Hole Type:
Drilled
Thready Qty Per Inch (tpi):
28
Hardness Rating:
32.0 rockwell c minimum overall and 36.0 rockwell c maximum overall
Hole Configuration Style:
Round
Surface Finish:
32.0 microinches threads
Surface Finish:
63.0 microinches bearing surface of head
Material:
Steel comp 8740 overall
Material Specification:
Ams 6322 assn std single material response overall
Surface Treatment:
Cadmium overall
Surface Treatment Specification:
Ams 2400 assn std single treatment response overall
Thread Series Designator:
Unf
Quick Specs
Thread Size 1/4
Thread Qty 28
Material Steel
Length 9/16

Additional Information

SKU / Model: AN148657
NSN: 5305-00-286-0013
FSC: Screws / 5305
Pack Weight (Approx.) 0.000 lb
Minimum Qty (MOQ): 15 EA
Schedule B: 7318.15.2010
ECCN: EAR99
National Motor Freight: 093486, Bolts,nuts Or Screws, Noi (sub 3)
Download PDF Version
AN148657_Military-Fasteners-com.pdf
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More machine screws

AN148859

Fastener Length: 11/16", Hole Diameter: 1/16", Thread: 3/8-24, Head Width: 5/16", Thread Length: 11/16"

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