Five Arm (Star) Knobs
This family of knobs provides a firm, secure grip for applications requiring quick tightening and high torque. The smooth edges prevent snagging and make our star knobs a popular choice. NEW soft touch knobs also available to provide extra comfort and style!
- Varieties available in thermoplastic, phenolic and thermoplastic overmold materials.
- Sizes ranging from 1-21/64” to 3-1/2” in diameter.
- Female insert, projecting stud and thru-hole options are available. Please see the chart below for a complete list of our capabilities for each part number.
- Thermoplastic version has a textured finish.
- Can’t find what you’re looking for? Contact us today to learn about our custom molding options.
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2980/2990
2971/2981
2970
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 2970 1 21/64 3/4 .750-1.125 3/4 o o o x o o o x o o o o o o o o o o o o o o o o o x o o o x o o o TP 2980 2 1/4 1/2, 17/32, 25/32, 51/64, 1, 1 1/32, 1 3/64,2 .500-2.000 27/32 o o o x o x o x x o o o o o x x x x x x o o o o o x o x o x x o o TP 2990 3 1/2 1 7/64, 1 1/8 N/A 1 3/8 o o o o o o o o o o o o o o o o o o x x o o o o o o o o o o o o o
TPO 2971 1 15/32 13/16 .750-1.125 7/8 o o o x o o o x o o o o o o o o o o o o o o o o o x o o o x o o o TPO 2981 2 3/8 27/32 .500-1.032 31/32 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 Legend:
- * For parts with male studs, length projecting below knob must be specified.
- x Currently manufacture/tooled
- o could manufacture/requires tooling
- TP thermoplastic
- TPO thermoplastic overmold