Octagonal, Dominator & Leo Knobs

The Octagonal series is one of Davies’ most complete families of clamping knobs. Textured thermoplastic with a domed top, a recessed top for an inlay, and a thru-hole for extended adjustments in clamping.

The Dominator series is our largest knob for serious clamping needs. Specially designed for superior strength and dependability.

The Leo will provide rock solid performance, and is also very comfortable to handle. This knob has a glossy finish and can have a pointer added at various lengths. Please see the chart below for exact specifications.

  • Varieties available in both thermoplastic and phenolic materials.
  • Sizes ranging from 1-3/8” to 3-23/32” in diameter.
  • Female insert, projecting stud, thru-hole and molded hole options are available. Please see the chart below for a complete list of our capabilities for each part number.
  • Knobs can be decorated or customized to your specific need.
  • Can’t find what you’re looking for? Contact us today to learn about our custom molding options.

Octagonal Knobs

Thermoplastic Octagonal Knob

4200/4210/4230/4240
without thru-hole

Thermoplastic Octagonal Knob

4202/4212/4232/4242
with thru-hole

Thermoplastic Octagonal Knob

4201/4211/4231/4241
with and without inlay

Line Drawing
Size / Order Chart

Dominator Knobs

Thermoplastic Dominator Knob

3340

Thermoplastic Dominator Knob

3350

Thermoplastic Dominator Knob

3370

Thermoplastic Dominator Knob

3341

Thermoplastic Dominator Knob

3351

Thermoplastic Dominator Knob

3371

Line ChartSize / Order Chart

Leo Knobs

Phenolic Leo Knob


4100/4101/4102/4103

Phenolic Leo Knob

with Pointer

Phenolic Leo Knob


with Decorative Inlay

Line Chart
Size / Order Chart