Vibration-Resistant Threaded-Stud Knobs



Bonded to the stud is an acrylic adhesive that adds friction to resist loosening from vibration. Use these knobs to position, tighten, and hold fixtures, equipment, and machinery. They mount into a threaded hole. The studs have an outer layer of zinc that prevents the steel from rusting in wet areas.
Made of plastic, all of the knobs resist oil, grease, and solvents. Phenolic knobs are scratch resistant. For impact resistance, choose polypropylene knobs.
For technical drawings and 3-D models, click on a part number.
Head | Hub | Each | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Thread Size | Thread Pitch | Stud Lg. | Dia. | Ht. | Dia. | Ht. | Stud Material | Temperature Range, °F | 1-9 | 10-Up | |
Ribbed Grip | |||||||||||
Black Phenolic Plastic | |||||||||||
10-32 | __ | 1/2" | 7/8" | 3/8" | 5/8" | 1/8" | Zinc-Plated Steel | -30° to 200° | 0000000 | 00000 | 00000 |
1/4"-20 | __ | 9/16" | 7/8" | 3/8" | 5/8" | 1/8" | Zinc-Plated Steel | -30° to 200° | 0000000 | 0000 | 0000 |
1/4"-20 | __ | 9/16" | 1 1/2" | 3/8" | 11/16" | 3/8" | Zinc-Plated Steel | -30° to 200° | 0000000 | 0000 | 0000 |
1/4"-20 | __ | 3/4" | 1 1/4" | 3/8" | 5/8" | 3/8" | Zinc-Plated Steel | -30° to 200° | 0000000 | 0000 | 0000 |
5/16"-18 | __ | 3/4" | 1 3/4" | 3/8" | 3/4" | 3/8" | Zinc-Plated Steel | -30° to 200° | 0000000 | 0000 | 0000 |
Four Arm Grip | |||||||||||
Black Phenolic Plastic | |||||||||||
1/4"-20 | __ | 1" | 1 1/2" | 1/2" | 5/8" | 1/2" | Zinc-Plated Steel | -30° to 200° | 0000000 | 0000 | 0000 |
5/16"-18 | __ | 1" | 1 1/2" | 1/2" | 5/8" | 1/2" | Zinc-Plated Steel | -30° to 200° | 0000000 | 0000 | 0000 |
3/8"-16 | __ | 1" | 2" | 1/2" | 7/8" | 1/2" | Zinc-Plated Steel | -30° to 200° | 0000000 | 0000 | 0000 |
1/2"-13 | __ | 3/4" | 2" | 1/2" | 7/8" | 1/2" | Zinc-Plated Steel | -30° to 200° | 0000000 | 00000 | 0000 |
Five Arm Grip | |||||||||||
Black Polypropylene Plastic | |||||||||||
M6 | 1 mm | 20mm | 44mm | 11mm | 19mm | 8mm | Zinc-Plated Steel | -20° to 125° | 00000000 | 0000 | 0000 |
M6 | 1 mm | 20mm | 57mm | 12mm | 21mm | 7mm | Zinc-Plated Steel | -20° to 125° | 00000000 | 0000 | 0000 |
M10 | 1.5 mm | 30mm | 57mm | 12mm | 21mm | 7mm | Zinc-Plated Steel | -20° to 125° | 00000000 | 0000 | 0000 |
Vibration-Resistant Threaded Through-Hole Knobs


Like locknuts, these knobs have a nylon insert that grips threads to resist loosening. Long shafts can thread through these knobs for mounting versatility. Use the knobs as a grip to position, tighten, and hold fixtures, equipment, and machinery. Made of plastic, all resist oil, grease, and solvents.
For technical drawings and 3-D models, click on a part number.
Thread | Head | Hub | Each | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Size | Dp. | Dia. | Wd. | Ht. | Dia. | Ht. | Insert Material | Temperature Range, °F | 1-9 | 10-Up | |
Style 1—Two Arm Grip | |||||||||||
Black Polypropylene Plastic | |||||||||||
1/4"-20 | 5/16" | __ | 2" | 5/8" | 3/4" | 1/2" | Zinc-Plated Steel | -15° to 125° | 00000000 | 00000 | 00000 |
5/16"-18 | 5/16" | __ | 2" | 5/8" | 3/4" | 1/2" | Zinc-Plated Steel | -15° to 125° | 00000000 | 0000 | 0000 |
5/16"-18 | 5/16" | __ | 2 1/2" | 5/8" | 3/4" | 1/2" | Zinc-Plated Steel | -15° to 125° | 00000000 | 0000 | 0000 |
3/8"-16 | 1/2" | __ | 2" | 5/8" | 3/4" | 1/2" | Zinc-Plated Steel | -15° to 125° | 00000000 | 0000 | 0000 |
3/8"-16 | 1/2" | __ | 2 1/2" | 5/8" | 3/4" | 1/2" | Zinc-Plated Steel | -15° to 125° | 00000000 | 0000 | 0000 |
Style 2—Five Arm Grip | |||||||||||
Black Polypropylene Plastic | |||||||||||
1/4"-20 | 5/16" | 1 1/4" | __ | 7/16" | 3/4" | 3/4" | Zinc-Plated Steel | -15° to 125° | 00000000 | 0000 | 0000 |
1/4"-20 | 5/16" | 1 3/4" | __ | 7/16" | 3/4" | 3/4" | Zinc-Plated Steel | -15° to 125° | 00000000 | 0000 | 0000 |
1/4"-20 | 5/16" | 2 1/4" | __ | 1/2" | 7/8" | 1/4" | Zinc-Plated Steel | -15° to 125° | 00000000 | 0000 | 0000 |
5/16"-18 | 3/8" | 1 1/4" | __ | 7/16" | 3/4" | 5/16" | Zinc-Plated Steel | -15° to 125° | 00000000 | 0000 | 0000 |
5/16"-18 | 3/8" | 1 3/4" | __ | 7/16" | 3/4" | 3/4" | Zinc-Plated Steel | -15° to 125° | 00000000 | 0000 | 0000 |
5/16"-18 | 3/8" | 2 1/4" | __ | 1/2" | 7/8" | 1/4" | Zinc-Plated Steel | -15° to 125° | 00000000 | 0000 | 0000 |
3/8"-16 | 7/16" | 2 1/4" | __ | 1/2" | 7/8" | 1/4" | Zinc-Plated Steel | -15° to 125° | 00000000 | 0000 | 0000 |