Screw Bases | McMaster-Carr

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	Clamping Action Clamping Action

	Hold Down
	Push/Pull
	Push Only
	Pull Only

	Mount Type Mount Type	Show

Screw

	Mount Type Mount Type	Hide

	Number of Mounting Holes Number of Mounting Holes

	Clamp Type Clamp Type


Hold Down	Push/Pull

Latch

	Overall Length When Clamped Overall Length When Clamped

	Body Material Body Material

Steel

Stainless Steel

	Handle Position When Clamped Handle Position When Clamped


Up	Horizontal

Down

	Holding Capacity Holding Capacity

4,000 lbs. or greater

	Material Material

	Holding Screw Tip Material Holding Screw Tip Material

	Overall Height When Clamped Overall Height When Clamped

	Color Color

	Black		White
	Brown		Green
	Off-White		Blue
	Red

	System of Measurement System of Measurement

Inch

	Mounting Hole Diameter Mounting Hole Diameter

	Maximum Clamping Clearance Maximum Clamping Clearance

	Holding Screw Thread Size Holding Screw Thread Size

	Arm Length Arm Length

	For Screw Size For Screw Size

	Overall Length Overall Length

	Arm Construction Arm Construction

Open

Solid

Cut-to-Length

	Grip Style Grip Style


Cushion	Plain

	For Bulb Base Type For Bulb Base Type

	Four Pin
	Two-Pin Wedge
	Four-Pin Wedge

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Draw Arm Style Draw Arm Style


U	Hook

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457 Products

Mounts, Feet, and Pads

Precision Leveling Mounts

These mounts have fine threads that give you precise leveling control.

Oil-Resistant Vibration-Damping
Mounts with Unthreaded Hole

Made of neoprene rubber, these mounts are oil resistant, so they're good for use under generators, HVAC equipment, electric motors, pumps, and blowers.

General Purpose Vibration-Damping
Mounts with Unthreaded Hole

Chemical-Resistant Vibration-Damping
Mounts with Unthreaded Hole

These mounts withstand exposure to weather and resist oil, antifreeze, and other petroleum-based fluids.

General Purpose Bolt-Down Vibration-Damping
Mounts with Unthreaded Hole

Bolt-Down Vibration-Damping Mounts
with Unthreaded Hole for Tight Spaces

Designed for tight spaces such as inside machinery, these mounts fit into a cutout, so they so they have a low top profile.

Fail-Safe Bolt-Down Vibration-Damping
Mounts with Unthreaded Hole

An interlocking steel frame in these mounts prevents collapse, even if the rubber fails.

Lighting

Sockets for Plug-In Compact Light Bulbs

Light Bulb Sockets

Install sockets for medium (standard household) screw-in base light bulbs.

Hold-Down Toggle Clamps

Mount these clamps to a bench top or other surface to keep workpieces in place.

Auto-Adjusting Heavy Duty Hold-Down Toggle Clamps

Hold workpieces of slightly different thicknesses with one clamp. These clamps automatically adjust to compensate for imperfections or small inconsistencies on the material’s surface.

Heavy Duty Hold-Down Toggle Clamps

Hold-Down Toggle Clamps with Locking Handle

Push the lever to lock the handle and prevent accidental opening.

Low-Profile Hold-Down Toggle Clamps

The handle locks in a horizontal position for more clearance above the clamp than standard hold-down toggle clamps.

Low-Profile Hold-Down Toggle
Clamps with Extra Hand Clearance

Reduce the chance of getting pinched when unclamping. These clamps have more space between the handle and the arm than other low-profile toggle clamps.

Auto-Adjusting Low-Profile Hold-Down Toggle Clamps

Hold workpieces of different thicknesses without adjustment.

Low-Profile Hold-Down Toggle
Clamps with Locking Handle

Push the lever to lock the handle and prevent accidental opening.

Compact Hold-Down Toggle Clamps

Often used when assembling small parts, these small clamps have the holding strength of a full-size clamp.

Compact Hold-Down Toggle
Clamps with Locking Handle

Push the lever to lock the handle and prevent accidental opening.

Dual-Mount Hold-Down Toggle Clamps

Two sets of mounting holes allow mounting on the bottom or side.

Air-Powered Hold-Down Toggle Clamps

These clamps have mounting holes on the bottom.

Bench-Mount Bar-Style Hold-Down Clamps

Mount the base to a work surface using screws.

Push/Pull Clamps

Auto-Adjusting Push Toggle Clamps

Hold workpieces of different thicknesses without adjustment.

Compact Push/Pull Toggle Clamps

Smaller than standard push/pull toggle clamps, these are often used for electronics and small fixturing applications.

Push/Pull Toggle Clamps

Push or pull the plunger to hold your workpiece from the side.

Compact Push Toggle Clamps with Locking Handle

Smaller than standard push toggle clamps, these are often used for electronics and small fixturing applications.

Push Toggle Clamps with Locking Handle

Secure your workpiece from the side by fully extending the plunger, and push a lever to lock the handle in place.

Push Toggle Clamps with Rotating Handle

The handle can be rotated 125° for easier access or extra clearance above the clamp.

Sealed Push/Pull Toggle Clamps

Moving parts are sealed to prevent dirt and dust from clogging the clamp.

Reverse-Action Push Toggle Clamps

Pull the handle backward to push the plunger forward. These clamps secure when the plunger is fully extended to hold your workpiece from the side.

Hole-Mount Adjustable-Travel Push/Pull Clamps

Drill a hole to mount these clamps through a surface and secure the mounting flange with screws. The plunger can be locked at any position along its travel.

Adjustable-Travel Push/Pull Clamps

The plunger can be locked at any position along its travel.

Air-Powered Push Toggle Clamps

Use for repetitive clamping and in production environments or hard-to-reach locations.

Latch-Style Clamps

Heavy Duty Latch-Style Toggle Clamps

A highly durable construction with hardened steel pivot pins and bushings provides a long service life.

Latch-Style Toggle Clamps

Fit the draw arm over a latch plate and pull the handle to clamp.

Latch-Style Toggle Clamps with Locking Handle

Push the lever to lock the handle and prevent accidental opening.

Right-Angle Latch-Style Toggle
Clamps with Locking Handle

Push the lever to lock the handle and prevent accidental opening.

Right-Angle Latch-Style Toggle Clamps

Mount the clamp on a lid and the latch plate on the side of a container.

Bundling

Cable Tie Mounts

Mount to a surface and add a cable tie to secure a bundle.

Standoff-Style Cable Tie Mounts

Often used to secure vertical running material, these mounts maintain space between a bundle and a surface.

Flame-Retardant Cable Tie Mounts

These mounts meet UL flammability requirements.

Chemical-Resistant Cable Tie Mounts

For use in environments subjected to chemicals, these mounts withstand the most corrosive conditions.

Metal-Detectable Cable Tie Mounts

Use these plastic mounts with metal-detector-grade cable ties when detection and retrieval is essential, such as in food processing applications. Mounts are brightly colored for visibility and contain a special compound that can be picked up by X-ray equipment and metal detectors.

Beaded Cable Tie Mounts

Mount to a surface and add a beaded cable tie to secure a bundle.

Stainless Steel Cable Tie Mounts

Use these mounts with stainless steel cable ties when working in corrosive environments.

Hook and Loop Cable Tie Mounts

Add a hook and loop cable tie to these mounts to secure a bundle.

Electric Positioning Turntables

Often used in displays, these turntables have a motor for continuous rotation.

Mounts, Feet, and Pads

Precision Leveling Mounts

Oil-Resistant Vibration-DampingMounts with Unthreaded Hole

General Purpose Vibration-DampingMounts with Unthreaded Hole

Chemical-Resistant Vibration-DampingMounts with Unthreaded Hole

General Purpose Bolt-Down Vibration-DampingMounts with Unthreaded Hole

Bolt-Down Vibration-Damping Mountswith Unthreaded Hole for Tight Spaces

Fail-Safe Bolt-Down Vibration-DampingMounts with Unthreaded Hole

Lighting

Sockets for Plug-In Compact Light Bulbs