Octagonal / Dominator / Leo
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.
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Octagonal Knobs
4200/4210/4230/4240 without thru-hole
4202/4212/4232/4242 with thru-hole
4201/4211/4231/4241 with and without inlay
A B C Threaded Female Insert Threaded Male Stud* Threaded Female Insert Thru-Hole Material Type Part No. Dia. Current Part Height Part Height Capab. Hub Dia. 8-32 10-24 10-32 1/4-20 1/4-28 5/16-18 5/16-24 3/8-16 3/8-24 1-2/13 1/2-20 8-32 10-24 10-32 1/4-20 1/4-28 5/16-18 5/16-24 3/8-16 3/8-24 1-2/13 1/2-20 8-32 10-24 10-32 1/4-20 1/4-28 5/16-18 5/16-24 3/8-16 3/8-24 1-2/13 1/2-20 TP 4200 1 3/8 55/64 .859-1.000 11/16 o x x x o x o x o o o o x x x x x x x x o o TP 4201 1 3/8 13/16 .8125-1.000 11/16 o x x x o x o x o o o o x x x x x x x x o o TP 4202 1 3/8 27/32 .843-1.000 11/16 o x x x o x o x o o o TP 4210 1 3/4 1 9/32 N/A 1 1/16 o x x x o x x x x o o o o o x x x x x x o o TP 4211 1 3/4 1 7/32 N/A 1 1/16 o x x x o x x x x o o o o o x x x x x x o o TP 4212 1 3/4 1 7/32 N/A 1 1/16 o x x x o x x x x o o TP 4230 2 3/8 1 11/32, 1 23/32 1.344-1.875 47/64, 1 1/4 o o o x o x o x x x o o o o x x x x x x x x TP 4231 2 3/8 15/16, 1 1/4 .938-1.375 47/64, 1 1/4 o o o x o x o x x x o o o o x x x x x x x x TP 4232 2 3/8 1 5/16 N/A 1 1/4 o o o x o x o x x x o TP 4240 3 1/4 1 29/32 N/A 2 x x x x x x x x x x x x x TP 4241 3 1/4 1 49/64 N/A 2 x x x x x x x x x x x x x TP 4242 3 1/4 1 29/32, 1 59/64 N/A 2 o o o x o x o x x x Legend:
- * For parts with male studs, length projecting below knob must be specified.
- x Currently manufacture/tooled
- o could manufacture/requires tooling
- TS thermoset
- TP thermoplastic
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Dominator Knobs
3340
3350
3370
3341
3351
3371
A B C Threaded Female Insert Threaded Male Stud* Threaded Insert Thru-Hole Material Type Part No. Dia. Current Part Height Part Height Capab. Hub Dia. 8-32 10-24 10-32 1/4-20 1/4-28 5/16-18 5/16-24 3/8-16 3/8-24 1-2/13 1/2-20 8-32 10-24 10-32 1/4-20 1/4-28 5/16-18 5/16-24 3/8-16 3/8-24 1-2/13 1/2-20 8-32 10-24 10-32 1/4-20 1/4-28 5/16-18 5/16-24 3/8-16 3/8-24 1-2/13 1/2-20 TP 3340 1 7/8 53/64 N/A 1 o o o x o x o x o o o o x x x x x x TP 3341 1 7/8 53/64 N/A 1 o o o x o x o x o TP 3350 2 9/16 1 1/8 N/A 1 3/8 o o o x o x o x o x x o o o x x x x x x o o TP 3351 2 9/16 1 1/8 N/A 1 3/8 o o o x o x o x o x x TP 3370 3 23/32 1 21/32 N/A 2 o o o x o x o x o x x o o o o o x x o o o o TP 3371 3 23/32 1 21/32 N/A 2 o o o x o x o x o x x Legend:
- * For parts with male studs, length projecting below knob must be specified.
- x Currently manufacture/tooled
- o could manufacture/requires tooling
- TS thermoset
- TP thermoplastic
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Leo Knobs
4100/4101/4102/4103
with Pointer
with Decorative Inlay
A B C Threaded Female Insert Threaded Male Stud* Female Insert Plain Molded Hold Square Valve Stem Material Type Part No. Dia. Current Part Height Part Height Capab. Hub Dia. 8-32 10-24 10-32 1/4-20 1/4-28 5/16-18 5/16-24 3/8-16 3/8-24 7/16-14 7/16-20 1-2/13 1/2-20 8-32 10-24 10-32 1/4-20 1/4-28 5/16-18 5/16-24 3/8-16 3/8-24 7/16-14 7/16-20 1-2/13 1/2-20 1/4 5/1 63/8 1/4 5/1 63/8 TS 4100 1 1/8 5/8 13/16 9/16 o o x x o o o o o o o o o o o x x x o o o o o o o o x o o x o o TS 4101 1 3/8 11/16 13/16 9/16 o o o x o o o o o o o o o o x x o o o o o o o o o o x o o x o o TS 4102 1 5/8 3/4 1 1/8 5/8 o o o x o o o o o o o o o o o o x x x x x x o o o o x o x x o o TS 4103 2 3/8 27/32 1 3/4 47/64 o o o x o o o x o o o o o o o o x x x x x x o o x x x x x x o x x Legend:
- * For parts with male studs, length projecting below knob must be specified.
- x Currently manufacture/tooled
- o could manufacture/requires tooling
- TS thermoset
- TP thermoplastic