Allen Bits | McMaster-Carr

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Drive Style

Drilled Spanner

External 12-Point

External Square

Hex with Pilot Recess

Tamper-Resistant Hex

Tamper-Resistant Torx

System of Measurement

Drive Size

Tip Style

Shank Type

Knurled-End Hex

Quick-Change Hex

Overall Length

15/16" to 1 1/8"

1 1/4" to 1 3/8"

Sold As

Driver Style

Hex Shank Size

Square Drive Size

Socket Style

Material

Aluminum Bronze

Beryllium Copper

Stainless Steel

Number of Pieces

Length

15/16" to 1 1/8"

1 1/4" to 1 3/8"

Socket Shape

Container Type

Compartmented Metal Box

Compartmented Plastic Box

Fabric Roll-Up Pouch

Metal Clip Rail

Plastic Clip Rail

Plastic Roll-Up Pouch

Finish

Magnesium Phosphate Coated

Phosphate Coated

Titanium Aluminum Nitride (TiAlN) Coated

Titanium Nitride (TiN) Coated

Zinc Flake Coated

Zinc Phosphate Coated

For Bit Shank Type

Quick-Change Hex

Bit-Holding Mechanism

Drive Type

Screw Size

Bolt Clearance Type

RoHS

REACH

Export Control Classification Number (ECCN)

DFARS Specialty Metals

How can we improve?

4,508 Products

Fastening and Joining

Screwdriver Bits

Screwdriver Bits

Pair with drivers to turn screws

Nutdriver Bits

Pair with nutdrivers to turn hex nuts and cap 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

Screwdrivers

Tighten and loosen screws

L-Keys

Turn fasteners from either end and reach into tight spots

Screwdriver/Nutdrivers

Screwdriver/Nutdrivers

Quickly switch between driving screws and driving nuts

T-Handle Keys

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

Bit Adapters

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

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

Wrench Heads

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

Fabricating and Machining

Hole Saw Arbors

Hole Saw Arbors

Secure a hole saw to a drill or drill press

Containers, Storage, and Furniture

Hex Key Organizers

Hex Key Organizers

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

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