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 1650 ships same day if ordered before 4pm EST
NAS517-4-1 Price:
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$0.68 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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Frequently bought together

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NAS602-8
Machine Screw
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length: 1/2", thread: 8-32, pan head, fully threaded, philips recess, alloy steel cadmium ii plating, NAS602 series screw

More NAS517 machine screws

NAS517-8-6

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

NAS517-6-9

Fastener Length: 1-13/64in., Thread: 3/8-24, Thread Length: 21/32in., 5305-00-207-1791

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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I have built an airplane with parts from Military Fasteners. In the last years I have only had one issue involving warranty problems and that was resolved by the factory. Good service and quality parts/availability are very good at Military Fasteners.

5.0

Small order but all was in stock, sales rep was very friendly and made it a pleasure. Shipped and received quicker than expected.

4.0

My new David Clark headset arrived earlier than expected and everything was perfect. Whole order/delivery experience was excellent.

4.0

Excellent variety, quality, and service. And, small orders are no problem. Military Fasteners is a tinker's delight and a great resource. I also appreciate their using the USPS. So many companies ship UPS only and to Alaska the UPS price is ridiculous. Thank you.

5.0