NAS517-4-1

Machine Screw

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Description:

length: 0.531", thread: 1/4-28 shear - close tolerance screw - alloy steel

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Add to Cart Up to qty 2000 ships same day if ordered before 4pm EST
NAS517-4-1 Price:
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$0.65 Each
Quantity:
Pre-packaged bag qty: 50 ea
* Sold in increments of 50
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NAS517-4-1 Datasheet Features and Specification

Thread Qty Per Inch (tpi):
28
Thread Direction:
Right-hand
Thread Length:
Between 0.385 inches and 0.531 inches
Thread Class:
3a
Thread Diameter:
0.250 inches
Surface Treatment Specification:
Qq-p-416 type 2 cl 3 federal specification single treatment response
Surface Treatment:
Cadmium and chromate
Min. Tensile Strength (psi):
160000 pounds per square inch
Internal Drive Style:
Cross recess type 1
Material:
Steel
Material Specification:
Mil-s-6050 military specification single material response or an-s-9 military standard single material response
Head Style:
Flat countersunk
Head Diameter:
Between 0.452 inches and 0.510 inches
Hardness Rating:
Between 36.0 rockwell c and 40.0 rockwell c
Fastener Length:
Between 0.516 inches and 0.561 inches
Countersink Angle:
Between 99.0 degrees and 101.0 degrees
Thread Series Designator:
Unf (fine thread)
Quick Specs
Thread Size 1/4
Thread Qty 28
Thread Series UNF
Thread Class 3A
Drive Style Cross
Material Steel

Additional Information

SKU / Model: NAS51741
NSN: 5305-00-637-6949
FSC: Screws / 5305
Product Series: NAS517
Pack Weight (Approx.) 0.000 lb
Minimum Qty (MOQ): 50
ECCN: EAR99
National Motor Freight: 093486, Bolts,nuts Or Screws, Noi (sub 3)
Download PDF Version
NAS517-4-1_Military-Fasteners-com.pdf
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More NAS517 machine screws

NAS517-8-6

Fastener Length: 1-9/64", Thread: 1/2-20, Thread Length: 25/32"

NAS517-6-9

$2.10 EA, Fastener Length: 1-13/64in., Thread: 3/8-24, Thread Length: 21/32in.

NAS517-6-6

$3.90 EA, Fastener Length: 63/64in., Thread: 3/8-24, Thread Length: 21/32in.

NAS517-6-5

$1.50 EA, Fastener Length: 61/64in., Thread: 3/8-24, Thread Length: 21/32in.

NAS517-6-28

$44.70 Ea

NAS517-6-27

Fastener Length: 2-21/64", Thread: 3/8-24, Thread Length: 21/32"

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Been buying from Military Fasteners ever since they opened. They have gotten better as they have grown which very unusual in my experience!

4.5

Ive been buying aircraft parts and supplies from Military Fasteners for 3 years as Ive built four different homebuilt aircraft. I have ALWAYS been perfectly satisfied with all facets of the process. Parts are almost always shipped the same day as I order them, even if I order in the afternoon. Im usually always able to find what i need on the website, and if not, I can call and be helped by someone who knows what he or she is doing. Your people make me feel like they really care about me. Prices are fair. I wish I could run my company as well as you run yours!

4.0

Year in and year out - your staff is excellent, attentive, and spectacular. My last order I forgot an item, and called in to have it added. Sure enough there it is in the box, just as requested. Customer service is always fantastic. Keep up the good work!

5.0

Order was complete, correct and was received promptly. I have never had a problem with any of my dozen or so orders processed over the past 3 years since I bought my plane.

4.5