google-site-verification=WdZxMH-0nxeSoD5CC_w8Yo_94E7Ceqeci-BpW5l7tC0 Military Standard MS21209C4-15 Crescent Steel Insert, Screw Thread | Eastern End Electronics

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When it comes to your aircraft, even the smallest parts can make a big difference, which is why our Military Standard MS21209C4-15 Inserts are highly sought after. These seemingly innocuous parts play a big role in keeping your aircraft together. They're designed to give screws something to grab onto, so they don’t back out prematurely when exposed to normal engine vibrations. The screw threads are made from high-quality steel and are designed to resist corrosion, making them perfect for use in a variety of applications. The unique coiled shape ensures plenty of surface space for screws to grab onto, with grooves already built-in to allow the screw threads to hold on strong.

 

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Military Standard MS21209C4-15 Crescent Steel Insert, Screw Thread

SKU: MS21209C4-15
Material
Thread Direction
Style Designator
Thread Length
Nominal Thread Size
  • 3B