Threaded-Stud Knobs
Mount these knobs into a threaded hole. They provide a secure grip to position, tighten, and hold fixtures, equipment, and machinery.
Plastic knobs are a lightweight alternative to metal. They resist oil, grease, and solvents. Phenolic has good scratch resistance.
For technical drawings and 3-D models, click on a part number.
Head | Hub | Each | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Thread Size | Stud Lg. | Dia. | Ht. | Dia. | Ht. | Stud Material | Temperature Range, °F | 1-9 | 10-Up | |
Style 20—Eight Arm Grip | ||||||||||
Black Phenolic Plastic | ||||||||||
| 3/8"-16 | 3/4" | 2 3/8" | 3/8" | 1 3/4" | 7/16" | Steel | -30° to 400° | 0000000 | 00000 | 00000 |
Threaded-Hole Knobs
Install these knobs on a threaded stud. They provide a secure grip to position, tighten, and hold fixtures, equipment, and machinery.
Aluminum knobs have mild corrosion resistance, are lightweight, and are nonmagnetic.
Plastic knobs are a lightweight alternative to metal. They resist oil, grease, and solvents. Phenolic has good scratch resistance.
For technical drawings and 3-D models, click on a part number.
Unthreaded-Hole Knobs
Tap custom threads or secure with a set screw to provide a firm grip to position, tighten, and hold fixtures, equipment, and machinery.
Aluminum knobs have mild corrosion resistance, are lightweight, and are nonmagnetic.
For technical drawings and 3-D models, click on a part number.
Hole | Head | Each | ||||||
|---|---|---|---|---|---|---|---|---|
| Dia. | Dp. | Dia. | Ht. | Dia. | Ht. | 1-9 | 10-Up | |
Style 14—Eight Arm Grip | ||||||||
Aluminum | ||||||||
| 1/2" | 1 1/4" | 3 1/2" | 3/4" | 1 1/4" | 1" | 000000000 | 000000 | 000000 |
Machinable-Hub Knobs
Mill specific holes or keyways in the hub to meet your specifications, or weld in place. These knobs provide a secure grip to position, tighten, and hold fixtures, equipment, and machinery.
Aluminum knobs have mild corrosion resistance, are lightweight, and are nonmagnetic.
For technical drawings and 3-D models, click on a part number.
Head | Hub | Each | ||||
|---|---|---|---|---|---|---|
| Dia. | Ht. | Dia. | Ht. | 1-9 | 10-Up | |
Style 8—Eight Arm Grip | ||||||
319 Aluminum | ||||||
| 3 1/2" | 3/4" | 1 1/4" | 1 1/8" | 00000000 | 00000 | 00000 |
Square-Through-Hole Knobs
Primarily used on spigot valves, slide these knobs over valves with a square stem and secure them in place with your fastener.
Zinc knobs have good corrosion resistance.
Aluminum knobs have mild corrosion resistance, are lightweight, and are nonmagnetic.
For technical drawings and 3-D models, click on a part number.
Head | Hole | ||||
|---|---|---|---|---|---|
| Dia. | Ht. | Wd. | Dp. | Each | |
Eight Arm Grip | |||||
Zinc | |||||
| 2 1/2" | 1/2" | 1/4" | 3/8" | 0000000 | 00000 |
| 2 1/2" | 1/2" | 9/32" | 3/8" | 0000000 | 0000 |
| 2 1/2" | 1/2" | 3/8" | 3/8" | 0000000 | 0000 |
| 2 3/4" | 1/2" | 9/32" | 3/8" | 00000000 | 0000 |
| 2 3/4" | 1/2" | 3/8" | 3/8" | 00000000 | 0000 |
| 3 1/2" | 9/16" | 7/16" | 7/16" | 0000000 | 0000 |
| 3 1/2" | 9/16" | 1/2" | 7/16" | 0000000 | 0000 |
Aluminum | |||||
| 2 1/2" | 1/2" | 1/4" | 3/8" | 00000000 | 0000 |
| 2 1/2" | 1/2" | 9/32" | 3/8" | 000000000 | 0000 |
| 2 1/2" | 1/2" | 3/8" | 3/8" | 000000000 | 0000 |
| 2 3/4" | 1/2" | 9/32" | 3/8" | 00000000 | 0000 |
| 2 3/4" | 1/2" | 3/8" | 3/8" | 00000000 | 0000 |
| 3 1/2" | 9/16" | 7/16" | 7/16" | 00000000 | 0000 |
| 3 1/2" | 9/16" | 1/2" | 7/16" | 00000000 | 0000 |