Machine Knobs | McMaster-Carr

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Stainless Steel

Round-Head Thumb Screw Profile

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How can we improve?

4,934 Products

Building and Machinery Hardware

Knobs

Position, tighten, and secure fixtures and equipment

Ball Knobs

Provide grip on control levers and push-pull rods

Indicating Knobs

Indicating Knobs

Control devices and view settings at a glance

Hand Wheels

Rotate to adjust machinery, valves, drill presses, and other equipment

Machine Handles

Machine Handles

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

Lever Handles

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

Adjustable Handles

Adjustable Handles

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

Steering Wheel Knobs

Steering Wheel Knobs

Attach to steering wheels for one-hand operation

Crank Handles

The offset handle gives extra leverage to maximize turning force

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

Spring Plungers

Spring Plungers

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

Fluid Handling

Valve Handles and Knobs

Valve Handles and Knobs

Replace the handle on most types of valves

Fabricating and Machining

Vise Handles

Replace handles in vises

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.)