Thumb Wheels | McMaster-Carr

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System of Measurement

Thread Size

Material

Stainless Steel

Head Diameter

Length

Grip Style

Mount Type

Threaded Through Hole

Unthreaded Hole

Unthreaded Through Hole

Thumb Screw Head Shape

Head Height

Threading

Partially Threaded

Thumb Screw Head Profile

Color

Hub Height

Thread Direction

Hub Diameter

Thread Pitch

Finish

Corrosion-Resistant Coated

Nut Type

RoHS

Compliant with Exemptions

REACH

DFARS Specialty Metals

Export Control Classification Number (ECCN)

Screw Size

Thread Type

Hole Diameter

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3,740 Products

Building and Machinery Hardware

Knobs

Position, tighten, and secure fixtures and equipment

Indicating Knobs

Indicating Knobs

Control devices and view settings at a glance

Pull Knobs

Use a knob to open and close cabinets, drawers, and doors

Fastening and Joining

Tighten and loosen by hand without the need for tools

Captive Panel Screws

Captive Panel Screws

Secure panels and enclosures while still having access to them

Easy to tighten and loosen by hand for making frequent adjustments

Panel Nuts

Extremely thin for tight spots such as electrical panels; also known as dress nuts

Socket Adapters

Socket Adapters

Make your socket more versatile, from converting the drive to limiting torque

Lighting

Light Switches

Manually turn lights on and off

Power Transmission

Lead Screw Nuts

Lead Screw Nuts

Mate with lead screws to move components in a straight line

Fluid Handling

Valve Knobs

Replace the knob on valves with a square stem, such as a spigot valve

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