ST3M505-4-4

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Description:

Fastener Length: 21/32", Thread: 1/4-28, Thread Length: 27/64"

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ST3M505-4-4 Datasheet Features and Specification

Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
0.372 inches minimum and 0.422 inches maximum
Fastener Length:
0.632 inches minimum and 0.662 inches maximum
Head Style:
Flat countersunk
Head Diameter:
0.456 inches minimum and 0.508 inches maximum
Shoulder Diameter:
0.2177 inches minimum first shoulder and 0.2182 inches maximum first shoulder
Shoulder Length:
0.145 inches minimum first shoulder and 0.165 inches maximum first shoulder
Internal Drive Style:
High-torque
Thread Diameter:
0.250 inches
Thready Qty Per Inch (tpi):
28
Countersink Angle:
99.0 degrees minimum and 101.0 degrees maximum
Shoulder Shape:
Round first shoulder
Special Features:
Socket drive recess in thread end 0.0947 in. min and 0.0967 in. max width across flats
Material:
Steel comp xm-13 overall
Material Specification:
Ams5629 assn std single material response overall
Surface Treatment:
Passivate overall
Surface Treatment Specification:
Qq-p-35 fed spec single treatment response overall
Thread Series Designator:
Unjf
Quick Specs
Thread Size 1/4
Thread Qty 28
Material Steel
Length 21/32

Additional Information

SKU / Model: ST3M50544
NSN: 5305-01-046-5461
FSC: Screws / 5305
Product Series: ST3M505
Pack Weight (Approx.) 0.000 lb
Minimum Qty (MOQ): 5 EA
Schedule B: 7318.15.6080
ECCN: EAR99
National Motor Freight: 093486, Bolts,nuts Or Screws, Noi (sub 3)
Download PDF Version
ST3M505-4-4_Military-Fasteners-com.pdf
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More ST3M505 machine screws

ST3M505-5-8

Fastener Length: 31/32", Thread: 1/4-24, Thread Length: 31/64"

ST3M505-4-8

Fastener Length: 29/32", Thread: 1/4-28, Thread Length: 27/64"

ST3M505-4-7

Fastener Length: 27/32in., Thread: 1/4-28, Thread Length: 27/64in.

ST3M505-4-6

Fastener Length: 25/32", Thread: 1/4-28, Thread Length: 27/64"

ST3M505-4-5

Fastener Length: 23/32", Thread: 1/4-28, Thread Length: 27/64"

ST3M505-4-3

Fastener Length: 19/32", Thread: 1/4-28, Thread Length: 27/64"

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5.0

Thanks for the quick delivery! Arrived quickly and in perfect condition. As usual with Military Fasteners. I'll be back!

5.0

Recently my avionics technician and I were installing a component in my aircraft and there were some critical fasteners missing from the manufactures package. This stopped the entire process. I called Military Fasteners after finding the parts on line, and Trisha answered the phone. I told her the situation and that I needed them ASAP. I found the parts gave her the part number and she confirmed they were in stock. This was about 430 in the afternoon just before closing. Trisha was kind and professional got the parts out the door that evening even though it was after the shipping cut off. Saved the day. I can tell you this entire company is represented by Trisha, anything they can do to help you out of a jamb they will absolutely go the extra mile and Trisha is the go to person. I am sure there are others there with her same attitude and professionalism. This is a great resource for all your fasteners needs.

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