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Ball knobs come in a large variety of different materials and sizes and are commonly used on applications that have up-down and right-left directional movement. They are also used for tightening, fastening, and pulling on an object, which make them a perfect choice for control levers. Their round design makes for an easy and comfortable grip no matter the material.

  • Knobs are black molded plastic With brass threaded inserts or
  • Solid steel ball with tapped hole
  • Full thread depth 1 1/2 times thread diameter
  • HBP 21, 22, and 24 have molded threads and no insert
Steel Control Balls - Inch
Steel Control Balls - Inch
Unit of Measure
Items Steel Control Balls - Inch
HBP-7
Plastic Ball Lever Control Knobs - Inch
Steel Control Balls - Inch
HBP-11
Plastic Ball Lever Control Knobs - Inch
Steel Control Balls - Inch
HBP-12
Plastic Ball Lever Control Knobs - Inch
Steel Control Balls - Inch
HBP-13
Plastic Ball Lever Control Knobs - Inch
Steel Control Balls - Inch
HBP-14
Plastic Ball Lever Control Knobs - Inch
Material N/A Plastic
Mounting Type N/A Tapped
T - Thread N/A 10-32 N/A 1/4-20 N/A 1/4-28 N/A 5/16-18 N/A 5/16-24
A - Diameter N/A 0.75 in N/A 1.00 in N/A 1.00 in N/A 1.00 in N/A 1.00 in
Knob Type N/A Ball
Diameter N/A 0.75 in (19.1 mm) N/A 1.00 in (25.4 mm) N/A 1.00 in (25.4 mm) N/A 1.00 in (25.4 mm) N/A 1.00 in (25.4 mm)
Stud Length N/A