Thumb Screw Clamps | McMaster-Carr

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System of Measurement

Thread Size

Length

Material

Head Diameter

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Fastener Head Type

Thumb Screw Head Profile

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Head Height

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Tip Type

Thread Length

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Thread Pitch

RoHS

Compliant with Exemptions

Not Compliant

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

Yes

REACH

Compliant

Not Compliant

Export Control Classification Number (ECCN)

2B999

EAR99

DFARS Specialty Metals

Thread Spacing

Thread Type

Stud Material

Head Color

Head Width

2,418 Products

Fastening and Joining

Thumb Screws

Tighten and loosen by hand without the need for tools

1,552 products

Building and Machinery Hardware

Knobs

Position, tighten, and secure fixtures and equipment

550 products

Fluid Handling

Hose Clamps

Connect hose to barbed hose fittings

31 products

Tube and Tube Fittings

Typically more flexible than pipe for carrying liquids and gases in short runs around equipment

72 products

Flow-Adjustment Valves

Gradually open and close to control the volume of air and liquids through a line

13 products

Fabricating and Machining

C-Clamps

Temporarily secure workpieces together or to a work surface

18 products

Clamping Screw Clamps

Mount in a base or through a threaded hole, then tighten the tip to hold a workpiece in place

15 products

Pipe Welding Clamps

Position and hold pipe joints for welding and assembly

4 products

Corner Clamps

Align and secure materials at a corner joint

1 product

Bar Clamps

Secure large materials with adjustable arms for even pressure distribution

4 products

Clamping Screw Mounting Bases

Thread clamping screw clamps into the holes to hold workpieces

7 products

Ring Stands

Hold lightweight objects such as beakers and other lab equipment

6 products

Measuring and Inspecting

Height Gauge Scriber Clamps

Replace the scriber clamp on your height gauge

5 products

Coordinate Measuring Machine Fixture Clamps

Keep workpieces in place for hands-free measuring and inspecting

6 products