Business Furniture Shop

Ball Style Knob

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Ball Style Knob


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SKU: S7-J21BK Categories: , ,
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Our 1-3/8″ diameter ball style office chair adjustment knobs are made from black nylon plastic with a co-molded inch brass insert or steel stud. They are made in the USA from quality materials and will last for decades.

Available Thread Size

  • 1/4-20 x 3/4″
Weight 1 oz
Made in

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Problem Solver S7 J21BK Black Ball Styles Adjustment Knob 1000x1000Ball Style Knob