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Your cart is empty.Black Rosette clamping Knob, 5/16”-18 threads. Quantity 4 pcs. These larger knobs are for added leverage aiding in the tightening and untightening of the clamping thumb screw. Sometimes you need just a little more holding power with the ease of the clamping thumb screw. Knob sizes are “A” = 1-1/2”. “B” = 1/2”. "C=1/2" “L” = Length of threads only are 1” Long. Fully Threaded. Thread material is stainless steel - anti-rust and anti-corrosion. Strong and durable.
Sam Martinez
Reviewed in the United States on February 12, 2025
I bought a set of 4 knobs. I used 2 of them and after a few times taking on and off the knobs fell right off. Pure JUNK!!
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