Clamp Hold-Downs | McMaster-Carr

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System of Measurement

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Clamping Action

Clamp Type

Material

Mount Type

Stud Diameter

Slot Width

Length

Handle Position When Clamped

Down

Horizontal

Holding Capacity

Less than 1,000 lb.

1,000 lb. to 1,999 lb.

2,000 lb. to 2,999 lb.

3,000 lb. to 9,999 lb.

10,000 lb. or greater

Draw Arm Style

Body Material

Overall Length When Clamped

Base Width

Height

Handle Style

Maximum Clamping Clearance

Holding Screw Thread Size

REACH

Width

Handle Material

RoHS

Compliant with Exemptions

Not Compliant

DFARS Specialty Metals

Compliant

Exempt

Not Compliant

Export Control Classification Number (ECCN)

Arm Length

1,432 Products

Fabricating and Machining

Fixture Clamps

Secure your workpiece to a fixture table so it won't move during machining

372 products

Fixture Kits

Everything needed to mount workpieces of different sizes to your machine table

21 products

Support Blocks

Support setup clamps for quick height adjustments

16 products

T-Slot Nuts

Combine with setup studs or bolts to mount fixtures to machine tables

314 products

T-Slot Clamp Supports

Hold up clamps to keep them in place when they're unclamped

7 products

Fixture Tables

Add clamps, brackets, and other components to build fixtures for welding and assembly

46 products

Toggle Clamps

Lock workpieces onto worktables or objects

245 products

C-Clamps

Temporarily secure workpieces together or to a work surface

2 products

Clamp Holding Screws

Replace worn holding screws in clamps or customize with different sizes or styles

52 products

Pliers Clamps

Clamp and lock workpieces with plier-style jaws for secure handling or transport

6 products

Clamp Holding Screw Tips

Cover metal holding screws to protect workpieces from scratches

12 products

Clamp Holding Washers

Replace worn washers on open-arm toggle clamps to keep holding screws in place

12 products

Clamping Screws

Apply pressure through a flat-tipped screw to hold material in place

42 products

Bar Clamps

Secure large materials with adjustable arms for even pressure distribution

4 products

Building and Machinery Hardware

Cam Handles

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

106 products

Measuring and Inspecting

Coordinate Measuring Machine Plates and Fixtures

Raise workpieces and position them on a fixture plate

30 products