AN507-428R20

Aeronautical Standard Screw

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Description:

Fastener Length: 1-1/4", Thread: 1/4-28, Thread Length: 1-11/64"

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AN507-428R20 Datasheet Features and Specification

Thread Class:
2a
Thread Direction:
Right-hand
Thread Length:
1.179 inches minimum
Fastener Length:
1.188 inches minimum and 1.250 inches maximum
Head Style:
Flat countersunk
Head Diameter:
0.462 inches minimum and 0.507 inches maximum
Internal Drive Style:
Cross recess type 1
Thread Diameter:
0.250 inches
Thready Qty Per Inch (tpi):
28
Min. Tensile Strength (psi):
55000 pounds per square inch
Hardness Rating:
26.0 rockwell c minimum and 32.0 rockwell c maximum
Countersink Angle:
99.0 degrees minimum and 101.0 degrees maximum
Screw Material:
Steel comp 2330
Screw Material Specification:
Sae assn std single material response
Screw Surface Treatment:
Cadmium
Screw Surface Treatment Specification:
Qq-p-416,ty 1,cl 3 fed spec single treatment response
Thread Series Designator:
Unf
Nondefinitive Specification/std Data:
3 type and 3c style
Departure From Cited Designator:
As modified by material,as modified by min tensile strength,as modified by hardness rating
Quick Specs
Thread Size 1/4
Thread Qty 28
Material Steel
Length 1-1/4

Additional Information

SKU / Model: AN507428R20
NSN: 5305-00-156-2403
FSC: Screws / 5305
Product Series: AN507
Pack Weight (Approx.) 0.000 lb
Minimum Qty (MOQ): 95 EA
Schedule B: 7318.15.6080
ECCN: EAR99
National Motor Freight: 093486, Bolts,nuts Or Screws, Noi (sub 3)
Download PDF Version
AN507-428R20_Military-Fasteners-com.pdf
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Great value for your dollar. Delivery was even quicker than what was quoted. I recommend this company for all of your industrial fastener needs

5.0

As usual, great stock and always have the difficult-to-find parts. Also, super fast purchase. Great experience.

5.0

I recently had the pleasure of working with Dan Hunter and I must say that my experience was nothing short of exceptional. Dan is the epitome of professionalism and knowledge in the Aerospace industry. From the moment I engaged with Dan, I was impressed by his deep understanding of the products/services he was selling. His expertise was evident as he patiently and thoroughly answered all of my questions, providing me with valuable insights that helped me make informed decisions. What sets Dan apart is his ability to build trust and establish rapport with customers effortlessly. I never felt pressured or rushed into making a purchase; instead, I felt supported and guided in finding the right solution for my needs. Ask for Dan if you are looking for a salesperson who goes above and beyond to deliver an exceptional customer experience.

5.0

We worked with Ramona at Military Fasteners for a few items that we needed right away to complete a job. Ramona processed our order quickly and efficiently and made the experience stress free when it could have been quite challenging. The items came with all the correct documentation too which was also very important to us.

5.0