
Who measured them and why put a mark of 1/4 inch when the inside diameter is 1/2 inch? I've worked with pipe, tubing, and threaded rod for years and have never heard, seen, or consulted a chart that tells you it's one size and then says, no, lying, it's actually that size. Do everyone on this planet a favor and include the actual ID that matches the thread in the product description. Now I've lost $11 and wasted a lot of time hoping that once the part arrives I'll be able to continue working on the project. Now more time is wasted trying to find something that actually has a 1/4" inner diameter. But they are very well made.

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