Steel Keys | McMaster-Carr

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System of Measurement

Width

Length

15/16" to 1 1/8"

Height

Key Type

Tolerance Rating

For Keyway Diameter

Minimum Hardness

Specifications Met

Fed. Spec. GGG-W-001405

OSHA Compliant 29 CFR 1910.147

DFARS Specialty Metals

Export Control Classification Number (ECCN)

RoHS

Compliant with Exemptions

REACH

Drive Size

Shaft Keyway Width

Finish

Chromate Conversion Coated

Copper Nickel Chrome Plated

Magnesium Phosphate Coated

Phosphate Coated

Polyurethane Coated

Titanium Aluminum Nitride (TiAlN) Coated

Hardness

Hub Keyway Width

Woodruff Key Number

Tip Style

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Driver Style

Number of Pieces

Thread Size

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6,545 Products

Machine Keys

Rounded Machine Keys

Rounded Machine Keys

Fill oval keyways completely, reducing stress on the key and shaft

Machine Keys

Install in keyways to transmit torque from shafts to gears and other components

Woodruff Keys

The rounded shape makes them easy to remove during frequent disassembly

Tapered Gib Keys

Tapered Gib Keys

The tapered body wedges in to the keyway for a more secure fit than standard machine keys

Tapped Rounded Machine Keys

Tapped Rounded Machine Keys

Thread a screw through the tapped hole to pop these keys out of a keyway

Step Key Assortments

Step Key Assortments

Repair keyways in gears and shafts

High-Profile Woodruff Keys

Feet prevent these keys from rocking in the keyseat

Machine Key and Woodruff Key Assortments

Machine Key and Woodruff Key Assortments

Include an assortment of machine and woodruff keys in various sizes

Woodruff Key Assortments

Woodruff Key Assortments

Rock in their seat to relieve stress on the shaft caused by vibration or misalignment

Standard Key Stock Assortments

Standard Key Stock Assortments

Include various sizes of key stock that you can cut to your desired length

Undersized Machine Key Assortments

Undersized Machine Key Assortments

A looser fit than standard keys, so they're best for uneven keyways or frequent disassembly

Oversized Machine Key Assortments

Oversized Machine Key Assortments

Slightly larger than the size listed for a tight fit in worn keyways

Undersized Key Stock Assortments

Undersized Key Stock Assortments

A looser fit than standard keys and are best for inconsistent keyways

Oversized Key Stock Assortments

Oversized Key Stock Assortments

Slightly larger than standard key stock, so keys fit tightly in worn keyways

Other Products

Machine Key Stock

Machine Key Stock

Cut a custom length to transfer torque from shafts to components such as gears and sprockets

L-Keys

Turn fasteners from either end and reach into tight spots

Padlocks

Shackle objects together, such as a door and its frame, to prevent theft or unauthorized entry

Fixture Keys

Locate fixtures and vises on your machine table

T-Handle Keys

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

Shut-Off Valve Wrenches

Shut-Off Valve Wrenches

Turn hard-to-reach valves on gas lines, faucets, toilets, and sinks

Screwdriver Bits

Screwdriver Bits

Pair with drivers to turn screws

Drill Chuck Keys

Drill Chuck Keys

Open and close drill chuck jaws

Bit Sockets

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

Torque-Limiting Keys

Torque-Limiting Keys

Used to install carbide inserts in cutting tools, a handle limits the amount of torque generated

Box Wrenches

Grip all sides of a fastener to prevent slipping

Screwdrivers

Tighten and loosen screws

Pipe/Valve Wheel Wrenches

Pipe/Valve Wheel Wrenches

Grip and turn pipe with one end and loosen valve wheels with the other

Driver Shafts

Attach to a handle to create your own driver tool, or pair with socket wrenches and power tools

Tank Wrenches

Turn valve stems, regulator inlet nuts, and caps on welding tanks

Wrench Heads

Attach to your ratchet wrench and socket extension to turn fasteners where clearance is limited

Screwdriver/Nutdrivers

Screwdriver/Nutdrivers

Quickly switch between driving screws and driving nuts

Socket Bits

Switch out worn or damaged bits instead of replacing your entire bit socket

Nutdrivers

Tighten and loosen nuts and bolts

Drill Drifts

Separate Morse taper shank cutting tools from spindles and adapters

Drain Wrenches

Install and remove drain traps and fittings, overflow outlets, and toilet inlet spuds

Impact Drivers

More powerful than drills to drive screws through dense material and loosen stuck fasteners

Sockets

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

Lathe Chuck Keys

Lathe Chuck Keys

A long T-handle gives leverage to open tight lathe chucks

Valve Wheel Wrenches

Valve Wheel Wrenches

Supply the leverage needed to turn hand wheels on large valves

Screw Starters

Grip and start turning screws that are too small to hold or located in hard-to-reach spots

Torque Screwdrivers

Torque Screwdrivers

Apply precise torque as you fasten screws to prevent overtightening

Lathe Tool Insert Holder Replacement Parts

Lathe Tool Insert Holder Replacement Parts

Replace clamps, screws, shims, and other parts in lathe tool insert holders

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