Metric Knobs | McMaster-Carr

Filter by

System of Measurement

Thread Size

Grip Style

Material

Stainless Steel

Mount Type

Threaded Through Hole

Unthreaded Hole

Unthreaded Plug

Unthreaded Through Hole

Stud Length

Head Diameter

Thread Pitch

Color

Length

Screw Size

Hub Height

Hub Diameter

Cap Color

Stud Material

Stainless Steel

Head Height

Handle Style

Insert Material

Stainless Steel

Fastener Head Type

Hole Diameter

Thumb Screw Head Profile

RoHS

Compliant with Exemptions

REACH

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

DFARS Specialty Metals

Export Control Classification Number (ECCN)

How can we improve?

1,379 Products

Knobs

Threaded-Stud Knobs

Threaded-Stud Knobs

Mount these knobs into a threaded hole

Threaded-Hole Knobs

Threaded-Hole Knobs

Install on a threaded stud to provide a secure grip

Threaded Through-Hole Knobs

Threaded Through-Hole Knobs

Long shafts can thread through these knobs for mounting versatility

Choose-a-Color Threaded-Hole Knobs

Choose-a-Color Threaded-Hole Knobs

Identify equipment controls and components at a glance by their color

Choose-a-Color Threaded-Stud Knobs

Choose-a-Color Threaded-Stud Knobs

Identify equipment controls and components at a glance by their color

Comfort-Grip Threaded-Stud Knobs

Comfort-Grip Threaded-Stud Knobs

A rubber coating provides a comfortable grip

Screw-Head Mount Knobs

Screw-Head Mount Knobs

To build a custom knob or thumb screw, pair with a hex or socket head screw

Unthreaded-Hole Knobs

Unthreaded-Hole Knobs

Tap custom threads or secure with a set screw

Comfort-Grip Threaded-Hole Knobs

Comfort-Grip Threaded-Hole Knobs

A rubber coating provides a comfortable grip

Tethered Threaded-Stud Knobs

Tethered Threaded-Stud Knobs

Never lose these knobs—tether them to equipment

Screw-Head Mount Knob Assortments

Screw-Head Mount Knob Assortments

Keep a convenient selection of knobs on hand

Sanitary Threaded-Hole Knobs

Sanitary Threaded-Hole Knobs

Designed for sanitary environments

Vibration-Resistant Threaded-Stud Knobs

Vibration-Resistant Threaded-Stud Knobs

An acrylic adhesive adds friction to resist loosening from vibration

Tethered Threaded-Hole Knobs

Tethered Threaded-Hole Knobs

Never lose these knobs—tether them to equipment

Metal-Detectable Threaded-Stud Knobs

Metal-Detectable Threaded-Stud Knobs

Detect if a piece breaks off into your food processing line

Metal-Detectable Threaded-Hole Knobs

Metal-Detectable Threaded-Hole Knobs

Detect if a piece breaks off into your food processing line

Other Products

Tighten and loosen by hand without the need for tools

Ball Knobs

Provide grip on control levers and push-pull rods

Adjustable Handles

Adjustable Handles

Lift and turn to easily position and tighten components; also called clamping handles

Lever Handles

Replace gear levers or attach to cranks and hand wheels to make them easier to turn

Pull Handles and Knobs

Pull Handles and Knobs

Open and close cabinets, drawers, and doors on machines and equipment

Indicating Knobs

Indicating Knobs

Control devices and view settings at a glance

Cam Handles

For fast clamping, push down on the handle to draw two parts together

Machine Handles

Machine Handles

Arms give you extra leverage to secure and position jigs, fixtures, and other equipment

Spring Plungers

Spring Plungers

Apply accurate, consistent pressure for positioning, indexing, and ejecting parts

Crank Handles

The offset handle gives extra leverage to maximize turning force

Ball-Lever Shafts

Ball-Lever Shafts

Attach a ball knob to create a custom handle for operating machinery

Handle Nuts

Attach to threaded shafts to quickly turn the shafts by hand

Retention Knobs

Retention Knobs

Attach tool holders such as collet chucks and end mill holders to your CNC machine’s spindle

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)