Best Female Ball Knobs

Mounting diameter and threads per inch: 3/8-16.
Reviews
Find Best Price at Amazon"worked well for my project."

Mounting diameter and threads per inch: 1/2-13.
Reviews
Find Best Price at Amazon"Perfect, exactly what I needed to replace the "padded" hanlde/knobs on my drill press."
"Good quality."
"Perfect for the end of Threaded rod."

1.25" Ball knob 1/4-20 steel zinc insert black pp.
Reviews
Find Best Price at Amazon"There is a nice texture to them, and when dry they are very ergonomic and do not make for sore hands even after using them all day."
"These are much better than the knobs I've seen at local hardware stores in terms of practicality and quality."
"These little knobs are handy to have around for any jig one may dream up."
"These look great and work well."
"These work well."
Best Ball Knobs

Mounting diameter and threads per inch: 3/8-16.
Reviews
Find Best Price at Amazon"worked well for my project."
Best Male Ball Knobs

Screw on type design for easy install and with surface nice finish for comfortable grip.
Reviews
Find Best Price at Amazon"I needed a metric bolt with some kind of handle to replace one on my Ryobi miter saw."
"Were I to do it again, I would probably buy the shorter shaft length version for this application, now that I know how it fits for both the boom and base clamping screws."
"Superb quality."