Metric Holders | McMaster-Carr

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Carbide-Tipped Steel

Stainless Steel

Thread Size

Length

ID

4.1 mm to 7.4 mm

7.1 mm to 12.4 mm

12.2 mm to 14.2 mm

13.5 mm to 20 mm

Rail Height

Pipe Size

Thread Pitch

Diameter

Mount Type

Finish

Aluminum Coated

Phosphate Coated

T-Slotted Framing Rail Profile

Attribute

Color

Fluorescent Green

Fluorescent Yellow

OD

RoHS

Compliant with Exemptions

Export Control Classification Number (ECCN)

REACH

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

DFARS Specialty Metals

Threading

Partially Threaded

Threaded on Both Ends

Threaded on One End

Width

Performance

Adjustable Height

Automated Control

Changeable Shaft

Chemical Resistant

Corrosion Resistant

Retaining Ring Type

Specifications Met

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11,107 Products

Most Likely Products

Retention Knobs

Retention Knobs

Attach tool holders such as collet chucks and end mill holders to your CNC machine’s spindle

Tag Organizing Stations

Tag Organizing Stations

Keep frequently used tags handy

Routing Clamps

Secure routed lines of pipe, tubing, and conduit

T-Slotted Framing and Fittings

T-Slotted Framing and Fittings

The most versatile system, attach fittings along the continuous slots to build virtually anything

Loop Clamps

Hold pipe snug against the mounting surface to prevent movement that may cause breakage

All Results

Fabricating and Machining

Retention Knobs

Retention Knobs

Attach tool holders such as collet chucks and end mill holders to your CNC machine’s spindle

Milling Machine Collets

Milling Machine Collets

Install in a milling machine collet chuck or holder to tightly grip tool bits

Tap Collet Holders

Tap Collet Holders

Hold tap collets on CNC machines

Tap Collets

Hold your tap firmly in a collet chuck or tap holder to create internal threads in workpieces

Drill Chuck Arbors

Drill Chuck Arbors

Attach drill chucks to machine spindles

Tapping Head Collets

Tapping Head Collets

Attach taps to tapping heads

Drill Chucks

Connect drill bits to hand-held drills, drill presses, and milling machines

Tapping Heads

Back out of a hole after tapping it without stopping your machine's motor

Die Grinder Collets

Die Grinder Collets

Attach to die grinders to hold grinding bits and burs

Deburring Tool Holders

Deburring Tool Holders

Deburr using your CNC machine without complex programming

Lathe Tap Holders

Lathe Tap Holders

Insert into the Morse taper tailstock on a lathe to drive a square-shank tap

Tool Holder Coolant Tubes

Tool Holder Coolant Tubes

Route coolant through your spindle without washing away its grease to improve machine and tool life

Fixture Clamps

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

Jaw Fixtures

Mount to a milling machine, drill press, or other flat surface to grip workpieces

T-Slot Nuts

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

Setup Studs

Secure setup clamps and fixtures to your machine table or assemble heavy machines

Fixture Kits

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

T-Slot Cleaners

T-Slot Cleaners

Scrape debris out of machine table T-slots

T-Slot Covers

Snap into T-slots to block chips, debris, and small parts from falling in

Spring Locating Pins

Spring Locating Pins

Apply side force to workpieces to clamp them in place

Fixture Tables

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

Locating and Support Buttons

Locating and Support Buttons

Secure and position workpieces and fixtures from the bottom or side

T-Slot Fixture Plates

T-Slot Fixture Plates

Position workpieces with T-slot nuts, bolts, and setup studs for precise machining

Slotted Bushings

Slotted Bushings

Pair with a standard bushing to prevent alignment pins from binding in your fixture

Support Blocks

Support setup clamps for quick height adjustments

T-Slot Bolts

Secure clamps and workpieces to machine tables with quicker setup than a T-slot nut and stud

T-Tracks

A versatile foundation for custom fixturing setups

Fixture Keys

Locate fixtures and vises on your machine table

Grippers

Clamp against uneven or irregularly shaped parts such as castings for a secure hold

Angle Plates

Ensure accurate right angles and hold workpieces and fixtures perpendicular to your machine table

Locating Pins

Install in fixturing plates or tables to position and secure workpieces

Swivel Pads

Attach to the ends of screws, threaded studs, or C-clamps to apply even pressure on uneven surfaces

Toggle Clamps

Lock workpieces onto worktables or objects

Lathe Chuck Jaw Nuts

Lathe Chuck Jaw Nuts

Secure jaws to a CNC lathe chuck

Lathe Collets

Insert into a lathe collet chuck or holder to tightly grip workpieces

Lathe Chuck Jaws

Lathe Chuck Jaws

Hold round workpieces on lathe chucks

Lathe Tools

Shape workpieces as they rotate on a lathe

Lathe Tool Insert Holders

Lathe Tool Insert Holders

Secure inserts within lathes to add cuts and grooves to workpieces

Tap Guides

Place on your workpiece to cut straight threads without building a fixture

Polishing Stone Holders

Polishing Stone Holders

Grip polishing stones for manual use or mount them to power tools

Drill Bit Guides

Drill Bit Guides

Drill precise holes without building a fixture

Material Handling

Routing Clamps

Secure routed lines of pipe, tubing, and conduit

Loop Clamps

Hold pipe snug against the mounting surface to prevent movement that may cause breakage

Pipe Hangers

Suspend pipe, conduit, and tube from rods, hooks, and straps

Pipe Supports

Brace pipe, tube, and conduit that needs to be routed between studs or elevated off the floor

Beam Clamps

Secure lines of pipe and duct, overhead equipment, and lighting fixtures to beam flanges

U-Bolts

Anchor heavy pipe, tube, and conduit; stronger than routing clamps and hangers

Pipe Cradles

Add support to prevent insulation from tearing when routing insulated pipe through loop hangers

Riser Clamps

Wide flanges support vertical pipe passing through floors

Robot Tool Mounts

Robot Tool Mounts

Modify how tools attach to your robot arm

Cable Bundling Tools

Cable Bundling Tools

Quickly organize wires, cables, and cords into bundles

Cable Holders

Mount to a surface to secure and route cable

Hook and Loop Straps

Hook and Loop Straps

Pull apart and secure again and again as the size of your bundle changes

Baling Wire

Secure large bundles such as lumber, cardboard, and wire coils

Cable Tie Mounts

Cable Tie Mounts

Attach to walls, machines, and other surfaces and add a cable tie to organize and secure bundles

Cable Ties

Bundle and secure cable, wire, and hose; also known as zip ties

Conveyor Guide Mounting Rods

Conveyor Guide Mounting Rods

Secure guides and other attachments to conveyors

Conveyor Guide Clamps

Conveyor Guide Clamps

Connect conveyor guides to each other and secure them in place

Eye Nuts

Pair with bolts or threaded rod to lift and hang components

Vacuum Lifters

Grip and move objects with air- or electric-powered suction

Pallets

Stack items to move them with a forklift and keep them orderly and raised off the ground in storage

Hazardous Material Shipping Kits

Hazardous Material Shipping Kits

Every packaging layer you need to safely ship hazardous liquids and solids

Building and Machinery Hardware

T-Slotted Framing and Fittings

T-Slotted Framing and Fittings

The most versatile system, attach fittings along the continuous slots to build virtually anything

Strut Channel Framing and Fittings

Strut Channel Framing and Fittings

Secure fittings in the U-shaped channel to route conduit and pipe or build other structures

Clamp-On Framing Rails

Clamp-On Framing Rails

Build assembly stations, conveyors, and racks that can be modified without dismantling them

Brackets

Connect surfaces in an assembly

Cam Handles

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

Door Track Hangers

Door Track Hangers

Attach doors, strip doors, and curtains to track

Communication

Tag Organizing Stations

Tag Organizing Stations

Keep frequently used tags handy

Soapstone

Make temporary marks in welding applications at high temperatures where chalk would burn

Fastening and Joining

Bit Adapters

Connect a variety of bits to drills, powered screwdrivers, ratchet wrenches, and other turning tools

Screwdrivers

Tighten and loosen screws

L-Keys

Turn fasteners from either end and reach into tight spots

Threaded Stud and Rod Drivers

Threaded Stud and Rod Drivers

Hold and tighten threaded studs and rods

T-Handle Keys

To turn fasteners in hard-to-reach spots, there's a long shaft and a grip for your whole hand

Driver Extension Adapters

Driver Extension Adapters

Create a tool that’s as long as you need to reach deeply recessed fasteners

Socket Inserts

Slip into sockets to keep fasteners from falling out

Sockets

Turn fasteners with an external drive style without slipping and damaging the drive

Tool Holder Coolant Tube Wrenches

Tool Holder Coolant Tube Wrenches

Install or remove coolant tubes inside HSK holders

Threaded Rods

Anchor, connect, or hang components in a wide variety of applications

Retaining Rings

Retaining Rings

Hold components on a shaft

Studs

Press, weld, or screw in place to add a threaded fastening point

Anchors

Secure anything from signs to heavy machinery in concrete, brick, and drywall

Push Nuts

Press onto threads for a light duty hold that’s faster to install than typical nuts

Weld Nuts

Weld to metal surfaces to add permanent threads

Taper Pins

Fit snugly into tapered holes to secure, position, and align components

Spring Pins

Squeeze and insert into tight holes to hold parts in place with tension

Standoffs

Separate, position, or connect components in assemblies

Clevis Pins

Secure parts in place and lock with a cotter pin or retaining ring

Cotter Pins

Secure the ends of clevis pins and shafts to keep components in place

Single-End Studs

Single-End Studs

Use the unthreaded end as a pivot point, hinge, shaft, or locator pin

Power Transmission

Linear Shaft Supports

Linear Shaft Supports

Support linear shafts to prevent bending and rolling under loads

Gas Spring Mounts

Gas Spring Mounts

Attach gas springs to panels, lids, and doors using a bracket or stud

Positioning Slides

Positioning Slides

A lead screw drives the carriage for accurate positioning in laboratory and production equipment

Connecting Rods

Connecting Rods

Use with rod ends and swivel joints to link components in push/pull assemblies

Turntable Bearings

Turntable Bearings

Support machinery that slowly turns or oscillates, such as a rotating hoist

Electric Slides

Electric Slides

Move parts with precision in electronics, robotics, and other automated processes

Electrical Power, Networking, and Controlling

DIN Rail Mounting Adapters

DIN Rail Mounting Adapters

Attach to components not made for DIN rail and clip on to install

Cable and Hose Carriers

Cable and Hose Carriers

Route, protect, and guide moving cable

Electrical Enclosures

Electrical Enclosures

House and protect power supplies, control panels, and other electrical equipment

Switch Mounts

Mount switches to panel cutouts, tank walls, or conveyors

Terminal Blocks

Terminal Blocks

Create tidy rows of wire connections that you can identify, test, and adjust on the spot

Containers, Storage, and Furniture

Socket Organizers

Socket Organizers

Arrange sockets at your workstation or carry them neatly around your facility

Wrench Organizers

Wrench Organizers

Keep wrenches in order at your workstation or when carrying them around your facility

Wipe Dispensers

Wipe Dispensers

Store and dispense disposable wipes

Tap and Drill Bit Stands

Tap and Drill Bit Stands

Organize taps and drill bits by size

Machine Tool Cabinets

Machine Tool Cabinets

Organize and store taps, drill bits, and end mills in labeled compartments

Measuring and Inspecting

Ring Gauge Holders

Ring Gauge Holders

Keep ring gauges still to measure cylindrical parts or threads quickly and repeatedly

Variance Indicators

Variance Indicators

Identify small dimensional differences when checking part quality and alignment

Variance Indicator Clamps

Variance Indicator Clamps

Secure and position indicators, arms, and other components on holders

Coordinate Measuring Machine Plates and Fixtures

Coordinate Measuring Machine Plates and Fixtures

Raise workpieces and position them on a fixture plate

Variance Indicator Contact Point Adapters

Variance Indicator Contact Point Adapters

Convert variance indicators to work with inch-size contact points or measure hard-to-reach spots

Alignment Pins

Line up holes in sheet metal, I-beams, and angle irons for bolting, riveting, and welding

Fluid Handling

Hose and Hose Fittings

Hose and Hose Fittings

Flexible and stronger than tubing; often used to convey liquids and gases under pressure

Facility and Grounds Maintenance

Hand Sanitizer Dispensers

Hand Sanitizer Dispensers

Dispense hand sanitizer with the push of a pump or wave of a hand

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