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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I have purchased most of my aviation needs from Military Fasteners for the last 5 years. You have provided me with the products that I have needed,with a price that is fair and a delivery on time. Thanks!

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(Translated by Google) Excellent service, fast and courteous (Original) Excellent service , rapide et courtois

5.0

I called the customer service line just before Air Venture at Oshkosh to find out if they would have the parts I needed at their booth. The service rep on the phone was very helpful and was able to check the inventory that was taken to Oshkosh.I was told that the parts would not be available but could be shipped from the warehouse without delay. I ordered a full set of intake seals for a Continental 085 on the spot and they arrived in a few days. I am very happy with the service provided, and will be ordering more parts soon! Thank you Larry

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Everything I ordered was delivered quickly, packaged well. In fact, all of my prior orders as well.

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