Allen Wrenches | McMaster-Carr

Filter by

System of Measurement

Drive Size

Tip Style

Sold As

Driver Style

Finish

Magnesium Phosphate Coated

Manganese Phosphate Coated

Phosphate Coated

Titanium Aluminum Nitride (TiAlN) Coated

Titanium Nitride (TiN) Coated

Zinc Flake Coated

Zinc Phosphate Coated

Overall Length

15/16" to 1 1/8"

1 1/4" to 1 3/8"

1 1/4" to 4 11/16"

Relative Length

Grip Style

Material

Aluminum Bronze

Beryllium Copper

Stainless Steel

Color

Fluorescent Green

Fluorescent Orange

Number of Pieces

Length

15/16" to 1 1/8"

1 1/4" to 1 3/8"

1 1/4" to 4 11/16"

Long Leg Length

Container Type

Canvas Roll-Up Pouch

Compartmented Metal Box

Compartmented Plastic Box

Fabric Roll-Up Pouch

Metal Clip Rail

Metal Wall-Mount Case

Plastic Clip Rail

Ball Location

Performance

Adjustable Length

Changeable Shaft

Corrosion Resistant

Drop Prevention

Electrical Insulating

Fastener Holding

High Visibility

Driver Type

Short Leg Length

Square Drive Size

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

RoHS

REACH

DFARS Specialty Metals

Export Control Classification Number (ECCN)

How can we improve?

5,641 Products

Fastening and Joining

L-Keys

Turn fasteners from either end and reach into tight spots

T-Handle Keys

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

Screwdrivers

Tighten and loosen screws

Screwdriver Bits

Screwdriver Bits

Pair with drivers to turn screws

Driver Shafts

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

Torque Screwdrivers

Torque Screwdrivers

Apply precise torque as you fasten screws to prevent overtightening

Screw Starters

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

Impact Drivers

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

Torque-Limiting Keys

Torque-Limiting Keys

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

Bit Adapters

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

L-Key Handles

Comfort with every turn—these upgrade your L-keys into T-handle keys

Driver Extension Adapters

Driver Extension Adapters

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

Bit Sockets

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

Socket Bits

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

Sockets

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

Ratchet Wrenches

Ratchet Wrenches

Adjust fasteners in tight spaces without removing and repositioning the wrench

Tool Sets

Secure fasteners and complete a variety of other maintenance tasks

Containers, Storage, and Furniture

Hex Key Organizers

Hex Key Organizers

Store L-keys and T-handle keys according to size

Socket Organizers

Socket Organizers

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

Bit Organizers

Store and organize several sizes and styles of bits

Screwdriver Organizers

Screwdriver Organizers

Keep screwdrivers sorted at your workstation or on the go

Fabricating and Machining

Lathe Tool Insert Holder Hex Keys

Lathe Tool Insert Holder Hex Keys

Replace the hex keys for your lathe tool insert holder

Lathe Chuck Keys

Lathe Chuck Keys

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

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