3M50-4-8

Screw

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Description:

Fastener Length: 63/64", Thread: 1/4-28, Thread Length: 1/2"

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3M50-4-8 Datasheet Features and Specification

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.442 inches minimum and 0.509 inches maximum
Fastener Length:
0.952 inches minimum and 0.999 inches maximum
Head Style:
Flat countersunk
Head Diameter:
0.502 inches minimum and 0.507 inches maximum
Shoulder Diameter:
0.264 inches minimum first shoulder and 0.265 inches maximum first shoulder
Shoulder Length:
0.389 inches minimum first shoulder and 0.411 inches maximum first shoulder
Internal Drive Style:
High-torque
Thread Diameter:
0.250 inches
Thready Qty Per Inch (tpi):
28
Countersink Angle:
100.0 degrees nominal
Shoulder Shape:
Round first shoulder
Special Features:
Furnished with 1 o-ring
Material:
Steel overall
Material Specification:
3-52,fscm 76301 mfr ref single material response overall
Surface Treatment:
Cadmium overall
Surface Treatment Specification:
3-52,fscm 76301 mfr ref single treatment response overall
Thread Series Designator:
Unf
Quick Specs
Thread Size 1/4
Thread Qty 28
Material Steel
Length 63/64

Additional Information

SKU / Model: 3M5048
NSN: 5305-00-433-9163
FSC: Screws / 5305
Product Series: 3M50
Pack Weight (Approx.) 0.000 lb
Minimum Qty (MOQ): 15 EA
Schedule B: 7318.15.6080
ECCN: 9A991
National Motor Freight: 093486, Bolts,nuts Or Screws, Noi (sub 3)
Download PDF Version
3M50-4-8_Military-Fasteners-com.pdf
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I appreciate the quality service from Military Fasteners. Do not leave us.

5.0

As always, orders are shipped promptly and received when expected. Rarely can you find products at lower cost than at Military Fasteners. The web site is easy to use. My favorite place to order from. When looking for aviation products, I always go to Military Fasteners first.

5.0

Youre team did an excellent job as usual. The sheet metal and grommets arrived in excellent condition and were very well priced which I appreciate. Thanks again. Doug

4.0

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