NAS1204-40

Bolt

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Description:

Fastener Length: 2-53/64", Thread: 1/4-28, Thread Length: 5/16"

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NAS1204-40 Datasheet Features and Specification

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.316 inches minimum
Fastener Length:
2.801 inches minimum and 2.831 inches maximum
Head Style:
Flat countersunk
Head Diameter:
0.499 inches minimum and 0.507 inches maximum
Grip Diameter:
0.2485 inches minimum and 0.2495 inches maximum
Internal Drive Style:
Cross recess type 1
Thread Diameter:
0.250 inches
Grip Length:
2.500 inches nominal
Thready Qty Per Inch (tpi):
28
Min. Tensile Strength (psi):
160000 pounds per square inch
Hardness Rating:
36.0 rockwell c minimum overall and 40.0 rockwell c maximum overall
Countersink Angle:
99.0 degrees minimum and 101.0 degrees maximum
Material:
Steel comp 4140 overall or steel comp e4340 overall or steel comp 6150 overall or steel comp 8735 overall or steel comp 8740 overall
Material Specification:
Mil-s-5626 mil spec 1st material response overall or mil-s-5000 mil spec 2nd material response overall or mil-s-8503 mil spec 3rd material response overall or mil-s-6098 mil spec 4th material response overall or mil-s-6049 mil spec 5th 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
Specification Data:
80205-nas1204 professional/industrial association standard
Quick Specs
Thread Size 1/4
Thread Qty 28
Material Steel
Length 2-53/64

Additional Information

SKU / Model: NAS120440
NSN: 5305-00-901-3936
FSC: Screws / 5305
Product Series: NAS1204
Pack Weight (Approx.) 0.000 lb
Minimum Qty (MOQ): 1 EA
Schedule B: 7318.15.8085
ECCN: 9A991
National Motor Freight: 093486, Bolts,nuts Or Screws, Noi (sub 3)
Download PDF Version
NAS1204-40_Military-Fasteners-com.pdf
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More NAS1204 close tolerance bolts

NAS1204-9D

$4.20 EA, Fastener Length: 57/64in., Thread: 1/4-28, Thread Length: 21/64in.

NAS1204-8D

$8.40 EA, Fastener Length: 53/64in., Thread: 1/4-28, Thread Length: 21/64in.

NAS1204-8

Length: 0.816in., thread: 1/4-28, close tolerance bolt cadmium plated alloy steel, 5305-00-802-8860

NAS1204-7

$1.14 Each, Length: 0.754in., thread: 1/4-28, close tolerance bolt cadmium plated alloy steel

NAS1204-6D

Fastener Length: 45/64in., Thread: 1/4-28, Thread Length: 5/16in.

NAS1204-6

$0.60 Each, Length: 0.691in., thread: 1/4-28, close tolerance bolt head cadmium plated alloy steel

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I placed this order late at 4:15 over the phone, 15 minutes past the cut off time.(Which rarely happens) It was critical for us to get the sparkplugs as a customer had called me and scheduled to bring his plane in the next day to have all his plugs replaced. My sales agent said she would personally go and pull the product so it would ship that day, and she did what she said. She saved me the embarrassment of telling my customer I forgot to order his parts on time and making him reschedule a maintenance visit. I am thankful you have people like her who really care about the customer and want to put in the extra effort for customer service. In my aircraft maintenance business I purchase everything I can first from Military Fasteners before I go looking for other venders. I use Military Fasteners because of the great customer service, free shipping (which is one day ground), large selection on hardware and materials, and competitive prices. I am a loyal customer and I order 2-3+ times a week. Thank you for the great service that your people provide at Military Fasteners.

5.0

Another good experience with Military Fasteners, and our Sales Rep, Dan Hunter. We needed hardware for an older aircraft model, and Dan's expertise was exceptional. He quickly identified fasteners, even for parts with unclear descriptions, and provided invaluable technical assistance. The supporting data was spot-on, verified by our technicians. Despite finding slightly lower prices elsewhere, the unmatched service and expertise from Military Fasteners, particularly Dan, make them our preferred choice. Our order was delivered ahead of schedule. Highly recommend MilFast for top-notch service and technical support!

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They did not answer to several requests sent to them

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You're the best of the best! Thanks for being there for all of us!

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