4 Pack Threaded 1"(OD) Square Plastic Tubing Insert 1/4-20 Threads S27-324BK
$5.82
4 Pack threaded square plastic tubing insert with 1/4-20 metal threads. Fits 1" outside diameter tubing with 16/18 gauge wall thickness. External edges fit flush with the outside edge of the tubing for a clean, finished appearance.
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