Rosette Knobs | McMaster-Carr

	System of Measurement System of Measurement

Inch

Metric

	Thread Size Thread Size

	Mount Type Mount Type


Press Fit	Threaded Stud

Threaded Hole	Screw

Create-Your- Own Hole

	Grip Style Grip Style


Three Arm	Six Arm

Seven Arm	Eight Arm

Ribbed

	Material Material

	Stud Length Stud Length

	Head Diameter Head Diameter

	Color Color

	Black		Gray
	Red		Yellow

	For Screw Size For Screw Size

	Stud Material Stud Material

Stainless Steel

Steel

	Hub Height Hub Height

	Head Height Head Height

	Hub Diameter Hub Diameter

	Cap Color Cap Color

	Black		Gray
	Red		Yellow

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

RoHS Compliant with
Exemptions

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Maximum Temperature Maximum Temperature

	Minimum Temperature Minimum Temperature

	Thread Pitch Thread Pitch

	Hole Shape Hole Shape


Round	Square

	Insert Material Insert Material

Stainless Steel

Steel

Brass

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	Thread Depth Thread Depth

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181 Products

Knobs

Screw-Head Mount Knobs

To build a custom knob or thumb screw, pair one of these knobs with a hex or socket head screw. They provide a secure grip to position, tighten, and hold fixtures, equipment, and machinery.

Threaded-Stud Knobs

Mount these knobs into a threaded hole. They provide a secure grip to position, tighten, and hold fixtures, equipment, and machinery.

Choose-a-Color Threaded-Stud Knobs

Identify equipment controls and components at a glance by their color. Mount these knobs into a threaded hole. They provide a secure grip to position, tighten, and hold fixtures, equipment, and machinery.

Tethered Threaded-Stud Knobs

Never lose these knobs—tether them to equipment to keep them where you need them. They provide a secure grip to position, tighten, and hold fixtures, equipment, and machinery. Mount them into a threaded hole.

Threaded-Hole Knobs

Install these knobs on a threaded stud. They provide a secure grip to position, tighten, and hold fixtures, equipment, and machinery.

Choose-a-Color Threaded-Hole Knobs

Identify equipment controls and components at a glance by their color. Install these knobs on a threaded stud. They provide a secure grip to position, tighten, and hold fixtures, equipment, and machinery.

Sanitary Threaded-Hole Knobs

Designed for sanitary environments, these knobs are commonly used in pharmaceutical and food-processing facilities. Install them on threaded studs to position, tighten, and hold equipment.

Tethered Threaded-Hole Knobs

Never lose these knobs—tether them to equipment to keep them where you need them. They provide a secure grip to position, tighten, and hold fixtures, equipment, and machinery. Install them on a threaded stud.

Threaded Through-Hole Knobs

Long shafts can thread through these knobs for mounting versatility. The knobs provide a secure grip to position, tighten, and hold fixtures, equipment, and machinery.

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.

Unthreaded Through-Hole Knobs

Create custom threads or secure with a set screw to provide a firm grip to position, tighten, and hold fixtures, equipment, and machinery. Long shafts can pass through these knobs for mounting versatility.

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.

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.

Precise-Control Knobs

Threaded-Stud Precise-Control Knobs

Mount these knobs into a threaded hole. Turn the knob to move the stud 0.005" per graduation and make precise adjustments.

Screw-Head Mount Precise-Control Knobs

To build a custom precise-control knob or thumb screw, pair one of these knobs with a socket head screw. Turn the knob to move the screw 0.005" per graduation and make precise adjustments.