LL500-4-4

Screw

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Description:

Fastener Length: 1/4", Thread: 4-40, Thread Length: 1/4"

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LL500-4-4 Datasheet Features and Specification

Thread Class:
2a
Thread Direction:
Right-hand
Thread Length:
0.200 inches minimum and 0.250 inches maximum
Fastener Length:
0.219 inches minimum and 0.250 inches maximum
Head Style:
Fillister
Head Diameter:
0.166 inches minimum and 0.183 inches maximum
Head Height:
0.072 inches minimum and 0.079 inches maximum
Internal Drive Style:
Cross recess type 1
Thread Diameter:
0.112 inches
Thready Qty Per Inch (tpi):
40
Min. Tensile Strength (psi):
60000 pounds per square inch
Part Name Assigned By Controlling Agency:
Screw, machine, fillister head, coarse thread
Screw Material:
Steel or steel comp 1010
Screw Material Specification:
Qq-s-630 fed spec 2nd material response or qq-s-631 fed spec 2nd material response or qq-s-634 fed spec 2nd material response
Screw Surface Treatment:
Cadmium
Screw Surface Treatment Specification:
Qq-p-416,ty 1,cl 3 fed spec single treatment response
Special Features:
With self-locking element
Thread Series Designator:
Unc
Quick Specs
Thread Size 4
Thread Qty 40
Material Steel
Length 1/4

Additional Information

SKU / Model: LL50044
NSN: 5305-01-518-6228
FSC: Screws / 5305
Product Series: LL500
Pack Weight (Approx.) 0.000 lb
Minimum Qty (MOQ): 15 EA
Schedule B: 7318.15.6080
ECCN: 9A991
Download PDF Version
LL500-4-4_Military-Fasteners-com.pdf
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More LL500 machine screws

LL500D6-7

Fastener Length: 7/16", Thread: 6-32, Thread Length: 7/16"

LL500A2-7

Fastener Length: 7/16", Thread: 2-56, Thread Length: 7/16"

LL500-6-8M

Fastener Length: 1/2", Thread: 6-32, Thread Length: 1/2"

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Excellent communication and fast service! Trisha Hawkins is the best!!

5.0

After an extensive look for parts, Ramona Real of Military Fasteners was the one that could help in finding what I needed and provide the necessary paperwork to go with it. Shipping on time and packing perfect. Good people to work with and highly recommended A+++++

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

In this day and age, it is rare to be impressed by customer service however, Military Fasteners has far exceeded my expectations. They went above and beyond to help ensure an important package delivery on time, and they made a little boys Christmas sweeter in the process. Thank you to the team there for your wonderful help. I will certainly come back to shop again and again. They always say, fly people are the best people.

4.0