Allen Wrench Sets | McMaster-Carr

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System of Measurement

Tip Style

Drive Style

Drilled Spanner

External 12-Point

Tamper-Resistant Hex

Tamper-Resistant Torx

Number of Pieces

Driver Style

Container Type

Compartmented Metal Box

Compartmented Plastic Box

Fabric Roll-Up Pouch

Metal Clip Rail

Plastic Clip Rail

Color

Finish

Magnesium Phosphate Coated

Phosphate Coated

Titanium Nitride (TiN) Coated

Zinc Flake Coated

Relative Length

Drive Size

Overall Length

15/16" to 1 1/8"

31/32" to 3 1/16"

1 1/4" to 1 3/8"

1 5/16" to 2 1/8"

1 5/16" to 4 11/16"

1 5/16" to 4 3/4"

1 5/16" to 6 13/16"

Material

Beryllium Copper

Stainless Steel

Ball Location

Driver Type

Torque Limiting

Grip Style

Performance

Corrosion Resistant

Drop Prevention

Electrically Insulating

Fastener Holding

High Visibility

Maximum Access Angle

Number of Sizes

Handle Material

Square Drive Size

REACH

RoHS

Shank Type

Knurled-End Hex

Quick-Change Hex

DFARS Specialty Metals

Export Control Classification Number (ECCN)

Socket Shape

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458 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

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

Screwdrivers

Tighten and loosen screws

Torque-Limiting Keys

Torque-Limiting Keys

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

Nutdrivers

Tighten and loosen nuts and bolts

Nutdriver Bits

Pair with nutdrivers to turn hex nuts and cap screws

Bit Sockets

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

Sockets

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

Socket Bits

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

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.)