MS51966-66

Military Standard Machine Screw

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Description:

Fastener Length: 7/8", Thread: 1/4-28, Head Width: 1/8", Thread Length: 7/8", setscrew

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MS51966-66 Datasheet Features and Specification

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.860 inches minimum and 0.890 inches maximum
Fastener Length:
0.860 inches minimum and 0.890 inches maximum
Head Style:
Headless (setscrew)
Point Style:
Flat
Internal Drive Style:
Hexagon
Thread Diameter:
0.250 inches
Width Across Flats:
0.125 inches nominal
Thready Qty Per Inch (tpi):
28
Hardness Rating:
45.0 rockwell c minimum overall and 53.0 rockwell c maximum overall
Material:
Steel comp 4032 overall or steel comp 4037 overall or steel comp 4137 overall or steel comp 4140 overall or steel comp 8630 overall or steel comp 8740 overall
Material Specification:
66 fed std all material responses overall
Surface Treatment:
Cadmium overall and chromate overall
Surface Treatment Specification:
Qq-p-416,type 2,class 3 fed spec all treatment responses overall
Thread Series Designator:
Unf
Quick Specs
Thread Size 1/4
Thread Qty 28
Material Steel
Length 7/8

Additional Information

SKU / Model: MS5196666
NSN: 5305-00-728-6323
FSC: Screws / 5305
Product Series: MS51966
Pack Weight (Approx.) 0.000 lb
Minimum Qty (MOQ): 25
ECCN: EAR99
National Motor Freight: 093486, Bolts,nuts Or Screws, Noi (sub 3)
Download PDF Version
MS51966-66_Military-Fasteners-com.pdf
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More MS51966 machine screws

MS51966-87

$5.10 EA, Fastener Length: 3/8in., Thread: 3/8-24, Head Width: 3/16in., Thread Length: 3/8in.

MS51966-80

Fastener Length: 1-1/64", Thread: 5/16-24, Head Width: 5/32", Thread Length: 1-1/64"

MS51966-67

Fastener Length: 0-1/1", Thread: 1/4-28, Head Width: 1/8", Thread Length: 0-1/1"

MS51966-147

Fastener Length: 1/2", Thread: 3/8-24, Head Width: 3/16", Thread Length: 1/2"

MS51966-123

Fastener Length: 5/16", Thread: 1/4-28, Head Width: 1/8", Thread Length: 5/16"

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Customer Reviews

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Thank you for very efficient and quality service. The product was exactly as advertised, price was good, and the shipping was very fast. I am very happy with my first experience with your company. I will for sure be continuing my business with you. Keep up the great work.

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!

5.0

Great performance. Goods received as ordered - as it should be, so I am happy. Cheers

5.0

Order was correct, complete and shipped quicker than I had expected. Well done

5.0