Three Arm Knobs
This family of clamp knobs comes in several different styles, sizes and materials. Perfect for the smaller, everyday clamping needs and applications.
- Varieties available in both thermoplastic and phenolic materials.
- Sizes ranging from 7/8” to 2-1/2” in diameter.
- Female insert, projecting stud, thru-hole and square valve stem 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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3022
3025
3035
3036
3038
3040
3041
3045
3510/3512
A B C Threaded Female Insert Threaded Male Stud* Threaded Female Insert Thru-Hole 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 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 TS 3022 7/8 3/4 .484-1.279 1/2 x x x x o o o x x x x x o o x x x x o o o TS 3025 1 1/8 5/8, 3/4, 7/8, 1 1/8, 1 3/16 .609-1.375 1/2 x x x x o o o x x x x x o o x x x x o o o TP 3035 1 1/2 3/4, 7/8, 15/16, 1, 1 1/4, 1 7/8 .34-1.375 5/8 o x x x o x o o o o x x x x x x x x o x x x o x o o o TS 3040 2 3/4, 1, 1 1/4 .734-1.437 3/4 o x o x x x x x x o o o o o x x x x x x x x o x o x x x x x x o o x TP 3036 1 1/2 7/8 .625-2.75 5/8 o o o x o x o x o o o o x x x x x x o o o x o x o x o TP 3038 1 11/16 3/4 .75-1.378 21/32 o o o x o x o x o o o o x x x x x x o o o x o x o x o TP 3041 2 1, 1 3/16 .625-2.74 3/4 o o o x o x x x x o o o o o x x x x x x x x o o o x o x x x x o o TP 3045 2 1/2 1 1/4 - 13/16 o o o x o x o x o o o o o o x x x x x x o o o o o x o x o x o o o TP 3510 1 5/32 3/4 .500-1.627 1/2 x x x x o x o TP 3512 1 5/32 3/4 .500-1.627 1/2 x x x x 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