NAS428HK4A6

Bolt

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Description:

Fastener Length: 13/16", Hole Diameter: 1/32", Thread: 1/4-28, Thread Length: 25/32"

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NAS428HK4A6 Datasheet Features and Specification

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.678 inches minimum and 0.781 inches maximum
Fastener Length:
0.750 inches minimum and 0.812 inches maximum
Head Style:
Crowned hexagon
Head Height:
0.131 inches minimum and 0.151 inches maximum
Width Between Flats:
0.428 inches minimum and 0.440 inches maximum
Hole Diameter:
0.035 inches nominal
Thread Diameter:
0.250 inches
Grip Length:
0.031 inches minimum and 0.062 inches maximum
Hole Quantity:
1
Hole Type:
Drilled
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
Hole Configuration Style:
Hexagon longitudinal hole
Special Features:
Slot in @thread end
Material:
Steel comp 8740 overall or steel comp 4140 overall or steel comp 8735 overall or steel comp 4037 overall or steel comp 4130 overall
Surface Treatment:
Cadmium overall and chromate overall
Surface Treatment Specification:
Qq-p-416,type 2,class 2 fed spec single treatment response overall
Thread Series Designator:
Unf
Specification Data:
80205-nas428 professional/industrial association standard
Quick Specs
Thread Size 1/4
Thread Qty 28
Material Steel
Length 13/16

Additional Information

SKU / Model: NAS428HK4A6
NSN: 5306-01-042-4389
FSC: Bolts / 5306
Pack Weight (Approx.) 0.000 lb
Minimum Qty (MOQ): 1 EA
Schedule B: 7318.15.8085
ECCN: EAR99
National Motor Freight: 093460, Bolts / Nuts Noi Bbc / Zinc
Download PDF Version
NAS428HK4A6_Military-Fasteners-com.pdf
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More machine bolts

NAS428HK4A5

Fastener Length: 5/8", Hole Diameter: 1/32", Thread: 1/4-28, Thread Length: 19/32"

NAS428HK4A20

Fastener Length: 2-", Hole Diameter: 1/32", Thread: 1/4-28, Thread Length: 1-61/64"

NAS428HK4A14

Fastener Length: 1-9/16", Hole Diameter: 3/64", Thread: 1/4-28, Thread Length: 1-9/16"

NAS428HK4A13

Fastener Length: 1-7/16", Hole Diameter: 3/64", Thread: 1/4-28, Thread Length: 1-13/32"

NAS428HK4A12

$4.20 EA, Fastener Length: 1-1/4in., Hole Diameter: 1/32in., Thread: 1/4-28, Thread Length: 1-7/32in.

NAS428HK4A11

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

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5.0

I have been a customer since Fullerton Air Parts (Flo Irwin). That should speak volumes of the service I have received from Military Fasteners. In the early days, I had a variety of planes and was based out of Orange County Airport. At the time, the airport was surrounded by bean fields. I, and some of my friends, would frequently fly into Fullerton airport for lunch, the pick up whatever supplies we needed from Flo. She was a great lady, and I am glad that she passed on such a wonderful legacy. I am certain that she would be very proud of what she started, and proud of you all for building on her meager beginnings.

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