NAS428HK4A20

Bolt

email this to someone  
Description:

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

* Manufacturer certifications are shipped with your order FREE of charge
no image available
Add to Quote We are currently out of stock of this item. Click the button below to add this item to a quote and receive up to date pricing and availability by email.

Add to Quote

NAS428HK4A20 Datasheet Features and Specification

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
1.954 inches nominal
Fastener Length:
2.000 inches nominal
Head Style:
Crowned hexagon
Head Height:
0.141 inches nominal
Width Between Flats:
0.438 inches nominal
Hole Diameter:
0.046 inches nominal
Thread Diameter:
0.250 inches
Grip Length:
0.031 inches minimum and 0.062 inches maximum
Hole Quantity:
1
Hole Type:
Drilled
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 flats
Part Name Assigned By Controlling Agency:
Bolt,machine
Material:
Steel comp 4037 overall or steel comp 4130 overall or steel comp 8630 overall or steel comp 8735 overall or steel comp 8740 overall or steel comp 4140 overall
Material Specification:
Qq-p-416,ty 2,cl 3 fed spec single material response overall
Surface Treatment:
Cadmium overall and chromate overall
Thread Series Designator:
Unf
Quick Specs
Thread Size 1/4
Thread Qty 28
Material Steel
Length 2-

Additional Information

SKU / Model: NAS428HK4A20
NSN: 5306-01-530-2657
FSC: Bolts / 5306
Pack Weight (Approx.) 0.000 lb
Minimum Qty (MOQ): 5 EA
Schedule B: 7318.15.8085
ECCN: EAR99
National Motor Freight: 093486, Bolts,nuts Or Screws, Noi (sub 3)
Download PDF Version
NAS428HK4A20_Military-Fasteners-com.pdf
Worldwide Shipping

* report an issue on this page

More machine bolts

NAS428HK4A6

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

NAS428HK4A5

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

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"

Have a question

If you require a quote on this or any product please visit our quote request page »

Browse our frequently asked questions page.

You may contact us by phone at +1 (904) 543-6395 or email us using our contact form.

Our hours of operation are 8:00am - 6:00pm EST

Customer Reviews

Google View our Google profile

Military Fasteners is an exceptional company in terms of how they run their business. Very prompt and responsive to questions, concerns, quotes, and all other forms of inquiry. Brittany Cornish supports many of the business transactions we perform with Military Fasteners and has made working with them an absolute pleasure. I would highly recommend them to anyone seeking mil-spec hardware.

5.0

Great supplier to work with. Prompt replies to inquiries, accurate information, quick turnaround shipping, personal touch with all communications. Trisha Hawkins has been a great representative for all of our questions and concerns.

5.0

Received the ELT Battery on time and at a price that I expected. I use Military Fasteners for all my aviation part and accessories needs.

5.0

I have always turned to Military Fasteners for all my aviation needs. They have never let me down and are totally trustworthy, fast and efficient. They have great choices from reasonably priced, to the best available. I've never seen the need to look anywhere else..Why would I..

4.0