Rosette Knobs | McMaster-Carr

	System of Measurement System of Measurement

Inch

Metric

	Thread Size Thread Size

	Grip Style Grip Style


Six Arm	Seven Arm

Eight Arm	Five Arm

Ribbed	Knurled

Two Arm	Single Arm

Three Arm

	Mount Type Mount Type


Press Fit	Threaded Stud

Threaded Hole	Screw

Create-Your- Own Hole

	Material Material

	Stud Length Stud Length

	Head Diameter Head Diameter

	Color Color

	Black		Gray
	Red		Yellow

	For Screw Size For Screw Size

	Hub Height Hub Height

	Hub Diameter Hub Diameter

	Stud Material Stud Material

Stainless Steel

Steel

	Head Height Head Height

	Thread Direction Thread Direction

Right Hand

Left Hand

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

DFARS Specialty Metals
COTS-Exempt

	Maximum Temperature Maximum Temperature

	Minimum Temperature Minimum Temperature

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

RoHS Compliant

RoHS Compliant with
Exemptions

	Cap Color Cap Color

	Black		Gray
	Red		Yellow

	Hole Shape Hole Shape


Round	Square

	Thread Pitch Thread Pitch

	Insert Material Insert Material

Brass

Stainless Steel

Steel

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

REACH Compliant

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479 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.

Screw-Head Mount Knob Assortments

Keep a convenient selection of knobs on hand. To build a custom knob or thumb screw, pair one of these knobs with a 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.

Comfort-Grip Threaded-Stud Knobs

A rubber coating provides a comfortable grip to position, tighten, and hold fixtures, equipment, and machinery. Mount these knobs into a threaded hole.

Left-Hand Threaded-Stud Knobs

Knobs have left-hand threads; they're used in applications where counterclockwise motion can loosen common right-hand threads. Mount them into a threaded hole to position, tighten, and hold fixtures, equipment, and machinery.

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.

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.

Threaded-Hole Knobs

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.

Comfort-Grip Threaded-Hole Knobs

A rubber coating provides a comfortable grip to position, tighten, and hold fixtures, equipment, and machinery. Install these knobs on a threaded stud.

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.

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.

Comfort-Grip Threaded Through-Hole Knobs

A rubber coating provides a comfortable grip to position, tighten, and hold fixtures, equipment, and machinery. Long shafts can thread through these knobs for mounting versatility.

Quick-Lock Threaded Through-Hole Knobs

Quick to install, position, and remove, these knobs have an angled hole that allows you to tilt the knob to slide it over threads, then straighten it to grip the threads and secure the knob. They provide a firm grip to position, tighten, and hold fixtures, equipment, and machinery.

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.

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.

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.

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.

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.

Door Handles and Knobs

Washdown High-Traffic Self-Locking Door Knobs

In addition to lasting twice as long as standard self-locking door knobs, these are made entirely of corrosion-resistant materials to stand up to washdown and marine environments.

Master Keyed Key- and Button-Locking Door Knobs

Open these knobs with both a shared master key and key unique to that door, or use the button on the inside.

Self-Locking Door Knobs

Each of these knobs opens with its own key. The outside handle is always locked, but you can open the door from inside.

Washdown High-Traffic Button-Locking Door Knobs

In addition to lasting twice as long as button-locking door knobs, these are made entirely of corrosion-resistant materials to stand up to washdown and marine environments.

Washdown High-Traffic Key-Locking Door Knobs

In addition to lasting twice as long as standard key-locking door knobs, these are made entirely of corrosion-resistant materials to stand up to washdown and marine environments.

Master Keyed Key-Locking Door Knobs

These knobs open with a master key and their own keys. The inside knob opens the door whether it is locked or unlocked.

High-Traffic Key- and Button-Locking Door Knobs

For frequently used doors, these knobs last twice as long as standard key- and button-locking door knobs.

Key- and Button-Locking Door Knobs

These knobs lock and unlock with a button on the inside or their own unique keys.

Washdown High-Traffic Door Knobs

In addition to lasting twice as long as standard door knobs, these are made entirely of corrosion-resistant materials to stand up to washdown and marine environments.

High-Traffic Key-Locking Door Knobs

For frequently used doors, these knobs last twice as long as standard key-locking door knobs.

Master Keyed Self-Locking Door Knobs

Unlock these knobs with a master key and a key unique to that door. They are always locked from the outside, but doors can be opened from the inside knob.

High-Traffic Door Knobs

For frequently used doors, these knobs last twice as long as standard door knobs.

High-Traffic Button-Locking Door Knobs

For frequently used doors, these knobs last twice as long as standard button-locking door knobs.

Keyed Alike Key- and Button-Locking Door Knobs

Choose these knobs if you need to open multiple doors with the same key. They also lock and unlock with a button on the inside.

Washdown High-Traffic Key-
and Button-Locking Door Knobs

In addition to lasting twice as long as standard key- and button-locking door knobs, these are made entirely of corrosion-resistant materials to stand up to washdown and marine environments.

Keyed Alike Self-Locking Door Knobs

These knobs are always locked from the outside. Unlock multiple knobs with the same key, or turn the inside knob to open.

Keyed Alike Key-Locking Door Knobs

Lock and unlock each of these knobs with the same key. The inside knob can always open the door.

Self-Locking Door Knobs without Lock Cylinders

Install a compatible lock cylinder to keep these knobs locked from the outside. You can always open them with the inside knob.

Button-Locking Door Knobs

Lock the outside knob with the button on the inside knob.

Key-Locking Door Knobs

These knobs can always be opened from the inside, while the locks on the outside each open with a different key.

Door Knobs

Also known as passage knobs, these knobs do not lock.

Key- and Button-Locking Door
Knobs without Lock Cylinders

Choose these knobs if you want to use your own compatible lock cylinders.

Key-Locking Door Knobs without Lock Cylinders

Install your own compatible lock cylinder to lock these knobs from the outside. The inside knob can always open the door.

High-Traffic Self-Locking Door Knobs

For frequently used doors, these knobs last twice as long as standard self-locking door knobs.

Knobs

Screw-Head Mount Knobs

Screw-Head Mount Knob Assortments

Threaded-Stud Knobs

Choose-a-Color Threaded-Stud Knobs

Tethered Threaded-Stud Knobs

Comfort-Grip Threaded-Stud Knobs

Left-Hand Threaded-Stud Knobs

Vibration-Resistant Threaded-Stud Knobs

Choose-a-Color Threaded-Hole Knobs

Threaded-Hole Knobs

Sanitary Threaded-Hole Knobs

Tethered Threaded-Hole Knobs

Comfort-Grip Threaded-Hole Knobs

Unthreaded-Hole Knobs

Threaded Through-Hole Knobs

Comfort-Grip Threaded Through-Hole Knobs

Quick-Lock Threaded Through-Hole Knobs

Vibration-Resistant Threaded Through-Hole Knobs

Unthreaded Through-Hole Knobs

Machinable-Hub Knobs

Square-Through-Hole Knobs

Precise-Control Knobs

Threaded-Stud Precise-Control Knobs

Screw-Head Mount Precise-Control Knobs

Door Handles and Knobs

Washdown High-Traffic Self-Locking Door Knobs

Master Keyed Key- and Button-Locking Door Knobs

Self-Locking Door Knobs

Washdown High-Traffic Button-Locking Door Knobs

Washdown High-Traffic Key-Locking Door Knobs

Master Keyed Key-Locking Door Knobs

High-Traffic Key- and Button-Locking Door Knobs

Key- and Button-Locking Door Knobs

Washdown High-Traffic Door Knobs

High-Traffic Key-Locking Door Knobs

Master Keyed Self-Locking Door Knobs

High-Traffic Door Knobs

High-Traffic Button-Locking Door Knobs

Keyed Alike Key- and Button-Locking Door Knobs

Washdown High-Traffic Key-and Button-Locking Door Knobs

Keyed Alike Self-Locking Door Knobs

Keyed Alike Key-Locking Door Knobs

Self-Locking Door Knobs without Lock Cylinders

Button-Locking Door Knobs

Key-Locking Door Knobs

Door Knobs

Key- and Button-Locking DoorKnobs without Lock Cylinders

Key-Locking Door Knobs without Lock Cylinders

High-Traffic Self-Locking Door Knobs

Washdown High-Traffic Key-
and Button-Locking Door Knobs

Key- and Button-Locking Door
Knobs without Lock Cylinders